These change logs document all relevant changes for the Cumulocity cloud deployments.
The following types of change are included:
Displaying all changes since December 6, 2023
The device profiles view has been migrated to a data grid. The data grid provides a more modern and user-friendly way to view and manage device profile items compared to the previous list view. The data grid offers enhanced features such as sorting, filtering, and pagination, making it easier to find and work with specific items.
In previous versions, the operation c8y_ua_command_ProcessMappingsForDeviceValues failed entirely if any single mapping failed. The new behavior allows the operation to continue reading nodes even if some nodes cannot be read due to bad status codes. Although the operation will still be marked as failed, all readable nodes will be mapped. Additionally, the result and failure messages have been improved to indicate which nodes failed and which were successful.
The DTM plugins component now includes a new asset properties widget module, which enhances the functionality of the existing “Asset properties” widget. This includes:
To improve the documentation of UI components, a Codex example has been added for the CountdownInterval component. This example demonstrates how to use the CountdownInterval component in an application, showcasing its functionality and configuration options. Developers can now refer to this example to better understand how to integrate the CountdownInterval component into their projects, making it easier to implement countdown functionality in their applications.
As part of continuous improvement efforts, the illustrations used in various sections of the Cockpit user interface have been updated. The new illustrations provide a fresh and modern look while still effectively conveying the intended message or concept. This change enhances the visual appeal and user experience of the Cockpit interface without impacting any functionality or existing user workflows.
The Apama Docker images are now available at public.ecr.aws/apama, and can be viewed at https://gallery.ecr.aws/apama/. Previously, they were available at softwareag/, and viewed at https://hub.docker.com/u/softwareag.
Within any Dockerfiles that use the Apama images, you will need to change FROM softwareag/<IMAGE>:<TAG> to FROM public.ecr.aws/apama/<IMAGE>:<TAG>.
The location of Apama within the image has been moved from /opt/softwareag to /opt/cumulocity. Existing images remain unchanged.
Previously, warning messages were logged when input events were dropped by an Analytics Builder model because they were delayed beyond the reorder buffer duration. In addition to the warning messages, an alarm is now raised when input events are dropped. The alarm provides improved visibility compared to relying on viewing log messages, which is especially useful for multi-tenant Streaming Analytics microservices where it may not be possible to view the logs at the parent tenant. See Analytics Builder dropped events for more details on the alarm.
This is a follow-up on a recent announcement about migrating the Microservice SDK to Spring Boot 3.
Starting from version 10.20.150.0, the Microservice SDK is now using Spring Spring Boot 3.0.x. Please follow the Spring Boot 3.0 Migration Guide to upgrade your applications when updating to that or later versions of the SDK. To make the migration process easier we recommend first updating to version 10.20.134.0 with JDK 17 and later to version 10.20.140.0 with Spring Security configuration changes, if it was not already done.
To provide more clarity and improve validation when configuring widgets, type information has been added to the widget configuration. Previously, the widget configuration did not include any type information, which could lead to confusion and misconfiguration. With this change, each configuration property now specifies its expected type, such as string, number, or Boolean.
To enhance the user experience and functionality a new select component has been introduced. This update includes significant changes that may require action from developers.
Key features:
c8y-select component will need to be updated.Required actions: Developers must select one of the following options:
c8y-select components to the new interfacec8y-legacy-select to maintain the current functionalityTo improve the usability of the alarms overview, filtering for specific alarm types has been added. Users can now select which alarm types they want to see in the overview by using the new filter options. This allows users to focus on the alarms that are most relevant to them, making it easier to identify and address critical issues in a timely manner.
The deprecated ILabels interface has been removed from the Web SDK. Instead, the ModalLabels interface is used.
For better clarity, the Position in navigator field in the dashboard settings has been renamed to Position in tabs.
As part of ongoing efforts to modernize the look and feel of the Cumulocity UI, the branding colors and the logo have been updated and aligned with current design trends. For example, the brand logo has been relocated to the bottom of the navigator to enhance user focus on navigation elements, reduce visual competition with the app icon, and optimize space utilization. This change provides a refreshed visual appearance throughout the Cumulocity UI, without impacting existing functionality or user workflows, but it could imply a need to review any custom branding applied as some design tokens have been updated or removed. Additionally, the link color is no longer related to the branding color and needs to be updated if a branded link color is wanted.
As part of keeping the Cumulocity platform up-to-date with the latest web technologies, Cumulocity has been upgraded to use Angular 18. This upgrade brings the latest features, performance improvements, and bug fixes from the Angular framework to the Cumulocity platform. The upgrade to Angular 18 should be largely transparent to users, with no visible changes to the user interface or existing functionality. However, any custom widgets or plugins developed for previous versions of Cumulocity may need to be updated to ensure compatibility with Angular 18.
The LWM2M specification allows devices to send an empty payload when there is no data to report. In case of an empty payload, no content-type is required. Previously, LWM2M agents would reject messages with an empty payload and no content-type. Now, these messages will be accepted and processed as intended.
To improve readability and consistency, the titles of device management application now use title case (Device Management) instead of sentence case (Device management). The functionality of the entities remains the same, only the casing of the titles has been modified.
In earlier LWM2M agent versions, device location updates occurred only when the device provided complete location object data. Now, updates happen whenever both latitude and longitude resources are reported together.
In the past, the bulk action control did not receive the IDs of the selected items, which made it impossible to display a bulk action conditionally based on the subset of selected items. With this change, the selected item IDs are now passed to the bulk action control showIf function.
The wizard for bulk registering LWM2M devices to Cumulocity provides default bulk registration templates. These templates have been updated to reflect new properties including the X.509 security mode.
When creating a duplicate of a local smart rule, it is now possible to select an asset from outside of the hierarchy. A duplicate of the rule is now created in the context of the selected asset.
Previously, when creating a new dashboard, it would open in view mode which required an extra click on the Edit button to start editing the dashboard. With this change, newly created dashboards now directly open in edit mode. This allows users to immediately start editing and configuring the new dashboard, saving them a click and making the user experience more intuitive.
This is a follow-up on a recent announcement about migrating the Microservice SDK to Spring Boot 3.
As a second step of this process, starting from version 10.20.140.0, the Microservice SDK is now using Spring Security 5.8. This change enabled a migration preparing for Spring Security 6.0 to be performed in the Microservice SDK following this migration guide. We recommend all users of the Microservice SDK to also follow that guide when updating their applications using the updated version of the SDK.
Note that following the changes in the MethodSecurityExpressionHandler configuration described here, the methods provided by com.cumulocity.microservice.security.service.SecurityExpressionService that were previously configured using a custom SecurityExpressionRoot extension, are now available via an independent bean definition named c8yAuthz. This means that, for example, the expression isCurrentTenantManagement() will no longer resolve and needs to be prefixed by the bean name instead @c8yAuthz.isCurrentTenantManagement(). This allows customers to easily add their own security expression extensions, if needed.
To improve the user experience in Analytics Builder, the On value change option of the Mode parameter in the Pulse block has been renamed to On value change (excluding to false). In addition, the block reference has been updated to clarify that for a boolean input, a pulse is only sent when the input changes to true (not false).
The text fields in the “Send measurement”, “Create alarm”, and “Send event” functionalities used to be limited to 100 characters. This limitation has been removed, allowing you to enter longer text without restrictions.
The configuration repository has been migrated to a data grid. The data grid provides a more modern and user-friendly way to view and manage configuration items compared to the previous list view. The data grid offers enhanced features such as sorting, filtering, and pagination, making it easier to find and work with specific configuration items.
The Extract Property block in Analytics Builder now includes a new optional checkbox called Ignore Separators In Property Path. This allows you to extract a property that has a separator such as a period (.) in the property name.
For example, if the Ignore Separators In Property Path checkbox is selected and the Property Path parameter is specified as location.city, then the property name location.city is extracted from the input value.
For compatibility, the previous behavior remains as the default, that is, the new checkbox is not selected by default.
The deprecated JWT authentication with Cumulocity has been removed. This change will only impact you if your organization used an early version of single sign on (SSO) on Cumulocity. For details, refer to the earlier announcement.
In a future version, we will update Angular to version 18 and update our base branding. This update brings improvements and new features, but may also introduce breaking changes that could impact your existing implementations. When updating to this new version, please verify your branding, especially the logo position, as it has been modified.
To ensure a smooth transition to Angular 18 and help you to adapt your implementations, we will provide an upgrade documentation when this change happens. This documentation will help you navigate through the changes and update your codebase accordingly.
This is a follow-up on a recent announcement about migrating Microservice SDK to Spring Boot 3. As a first step of this process, starting from version 10.20.134.0, the Java SDK and Microservice SDK are now both using Java 17 both on the source as well as the runtime level. This means that using Java 17 is now a minimum requirement for using the Microservie SDK.
We are pleased to announce an upcoming update to the Spring Boot version used in the Microservice SDK. The new version will be Spring Boot 3.3.3, which will also bring updates to several third-party libraries and frameworks. These mandatory changes will include:
Minimum required Java version: 17 (currently Java 8)
Jakarta EE 9+ baseline
Spring Security: 6.3.3
Spring Framework: 6.1.12 (currently 5.3.24)
HTTP Client: 5.3.1
Impact: Each of these updates may impact your microservices, potentially requiring code changes.
Rollout: The update will be available in Continuous Deployment (CD) versions starting in Q4 2024 and in versions of the next annual release 2025. A separate announcement will be made to confirm the CD version containing the change.
Migration Resources: Refer to the following guides for assistance with the changes:
Notifications 2.0 subscriptions may specify the Cumulocity APIs to subscribe to, for example alarms or measurements.
Subscriptions may use a wildcard value (*) for the API selector, indicating that the subscription should include all available APIs.
If the API selector is omitted from a subscription request, it is treated as equivalent to using the wildcard value.
Currently, a tenant context subscription using the wildcard API selector will deliver updates from a subset of the available APIs. See the Notifications 2.0 subscription REST API documentation for details on the current tenant context subscription behaviour.
In future, such subscriptions will also deliver updates from the operations API.
This applies to subscriptions that were created before the change is enabled, as well as new subscriptions.
For example, after this change is enabled, an application that POSTs the following request to the /notification2/subscriptions endpoint may receive operations updates, regardless of when the subscription was created:
{
"context": "tenant",
"subscription": "testSubscription",
"subscriptionFilter": {
"apis": [
"*"
]
}
}
Applications using the wildcard API selector in tenant context subscriptions should be prepared to receive operations updates in addition to the updates they were previously receiving.
To avoid disruption, application developers should either:
ensure that their applications can handle operations updates, or
include an API selector
before this change is enabled.
The change will be enabled in the Cumulocity CD deployments no earlier than January 15, 2025. It will also be included in the 2025 yearly release. A further announcement will be published when the change is enabled.
A new subassets view module has been added to the DTM plugins component, which includes official DTM plugins and enables integration with both default and custom web applications. This module allows users to efficiently view and manage subassets. In future releases, it will replace the existing subassets view in other Cumulocity applications.
In the Subassets page, instead of the key of the default location property, its label is displayed for improved user experience.
For simplicity, “model” has been removed from the asset model sample names. Additionally, the descriptions and UI layout have been improved to ensure consistency.
Real-time updates have been improved to ensure that changes made by concurrent users to asset models are immediately reflected.
The DTM microservice has been renamed from “dtm-ms” to “dtm”. REST endpoint paths have been updated accordingly, replacing the “dtm-ms” segment with “dtm”. Users will not perceive any change. However, they may need to manually unsubscribe and uninstall the older version.
The subasset module, which was originally imported from the ngx component, has now been replaced with the official plugin from the dtm-plugins component. This change maintains all existing functionality while enabling easy integration of module with both default and custom web applications.
In the New asset model page, the Asset models and Asset model samples tabs have been removed for a more focused user experience as they are not required for creating a new asset model.
The Platform service-level agreement now provides a more precise definition on how Cumulocity manages the Cumulocity platform service for your tenants and what might be possible limitations and responsibilities that you should be aware of.
Previously, the Alarm Input and Event Input blocks did not use the the correct source time for an update operation when the Ignore Timestamp checkbox was not selected. Instead, the creation time of the block was incorrectly used to schedule the input events. This has been fixed and alarm and event updates are no longer missed by the model. When the Ignore Timestamp checkbox is not selected, the input blocks now use the last update time of the block to schedule the input events in case of update operations.
In the user documentation, information has been added on how to register and delete LWM2M devices using the REST API, see Registering LWM2M devices.
The custom firmware update URL has been replaced with a standard firmware definition that points to an external URL. Right now this parameter is still available and takes precedence over any other option, but it will be removed in future LWM2M agent versions.
Cumulocity provides connectivity monitoring capabilities for which a required interval needs to be defined. For LwM2M device, this is automatically set by the LWM2M agent based on the registration lifetime. However, if the value is set manually, it will be overwritten by the LWM2M agent after each registration or registration update. This behavior can now be disabled both globally or for specific devices, allowing users to define the required interval independent of the registration lifetime.
Previously, the LWM2M agent could only cancel observations using the “reset” method. With this change, the LWM2M agent can now also use “GET with observe” method to cancel observations.
To improve security, the LWM2M service can now ignore packets from predefined source ports.
Previously, the LWM2M agent supported write operations in “Replace” mode only. With this change, write operations can now also be sent in the “Partial Update” mode using the “writep” command.
To improve the user experience and to ensure consistency, the firmware list has been migrated from a simple list view to a grid view.
The branding editor allows users to create a unique and consistent branding across their applications, improving the overall user experience and making it easier to align the application’s appearance with corporate design guidelines.
We have made significant improvements to our branding editor, offering a more robust and user-friendly experience for managing brand identity across multiple applications.
New functionalities:
Functional improvements:
To simplify plugin development and deployment, support for module-less plugins has been added. With this change, plugins no longer require a module to function, allowing to implement and deploy plugins more easily. This impacts plugin developers who can now create plugins without the overhead of a module and users who can benefit from a wider variety of available plugins that are simpler to install and use.
To improve the user experience, the links in the model editor and EPL editor for renaming a model or EPL app have been renamed to Model settings and App settings. Previously, these links displayed the name of the model or app. These names are now displayed at the top of the editor page.
Previously, adding Cumulocity schematics to Angular projects initialized with the standalone flag set to true failed. This issue has been addressed. Now, when integrating Cumulocity schematics into standalone Angular projects, the standalone flag is automatically set to false. Full support for standalone projects will be implemented in future updates. This interim solution allows developers to use Cumulocity schematics with projects initially set up as standalone, though with standalone features disabled.
The Add Asset module has been moved from the Digital Twin Manager (DTM) application to the newly created DTM plugins component. This component consists of modules from DTM as official plugins, enabling their integration into default and custom web applications. The Add Asset button will continue to be available in the standard DTM interface.
To ensure users agree to the service terms for microservice deployment when uploading a microservice, a new text acknowledgment has been added to the microservice upload dialog.
Previously, a new user received an email with a link to set their password. Now when the checkbox Send password reset link as email is cleared, the User must reset password on next login option is selected by default. This means the new user must change their password during their first login.
The Expression block in Analytics Builder has been updated to allow you to concatenate string and non-string values, similar to EPL. This is useful, for example, if you want to specify an expression like the following: “The current temperature is " + input1 + " degrees Celsius”.
The Counter block in Analytics Builder has been updated to allow you to set a maximum value for each counter independently. This change was made because it was difficult and cumbersome to create periodic behavior in Analytics Builder, and it gives more control over counting in general. The following new parameters are available for this purpose:
The counter in question can then loop. Depending on the setting of the corresponding checkbox, the counter either resets its corresponding output port (Count or Number Same) to one, counting the first input after reaching the maximum value, or it stops counting when reaching the maximum value and must then be reset manually. For compatibility, the previous behavior remains as the default. Note that the Reset input port resets both counters. If this is a problem, you must use a separate Counter block for each counter. See the description of the Counter block for detailed information on the new parameters.
Offloading pipelines may fail permanently, for example, due to an invalid offloading configuration or a wrongly configured data lake. In a future release Cumulocity DataHub will automatically stop permanently failing offloading pipelines.
Cumulocity now supports the ability to infer the full certificate chain from an intermediate certificate, enabling devices that are only able to send the device certificate to connect to Cumulocity. For full details refer to Device authentication.
The “Alarm list” widget is used to display alarms in dashboards and other places in the Cumulocity UI. Previously, child alarms were always shown which could lead to information overload for users monitoring many alarms. With this change, a new toggle has been added to the widget configuration which allows showing or hiding the child alarms in the alarm list. This provides users with more flexibility to customize the widget to their specific use case and makes it easier to focus on the relevant top-level alarms.
The Cockpit application has been split into further plugins. This allows admins to tailor the Cockpit application to their needs without any coding effort. They can now easily remove certain plugins and thus certain features which they do not want to include in their Cockpit application. The following plugins are now available:
To enable application developers to more easily select alarms and events in their custom applications, a new reusable alarm and event selector component has been introduced. For details refer to the Cumulocity Codex.
Starting with Q1 2025, the Cumulocity platform enforces name and context-path manifest fields naming restrictions for custom microservice deployments. You can verify the correctness of your microservices by uploading them via the UI or REST API. If this is successful, your configuration is correct. For details on the name and context-path fields, refer to Microservice manifest > Settings.
To improve the documentation around internationalization, the “Internationalization” section of the Cumulocity Codex was updated. The changes provide more detailed information and guidance on how to handle translations and localization in applications. This impacts developers who want to make their applications available in multiple languages, giving them better resources to understand and implement internationalization best practices.
To improve security, user administrators can no longer explicitly set passwords for device users. This change prevents an attacker from having access to all device users, in case the administrator account is compromised. In case of losing the device password, the device must be registered again.
Making Cumulocity more secure we have added a check on upload to ensure microservice settings do not contain any line feed characters such as HttpGet, exec, and TCPSocket of type Probe, aligned with items in the Kubernetes PodSpec.
The documentation of the SNMP device protocol has been moved from the user documentation to the public GitHub repository: cumulocity-examples.
In the Asset model samples page, the “Wind Turbine” and the “Solar Power Plant” sample asset models have been added. These samples serve as an example to help you quickly get started with your own asset modeling.
Improving the security for the Microservice SDK we have decided to restrict the initial configuration of the Spring Boot actuator endpoints (POST access to the /loggers endpoint) to the administrator roles only.
The version numbers for the frontend and backend are no longer displayed in the right drawer of the Streaming Analytics application. Instead, details on all components can now be downloaded via the Download platform details button. This change simplifies the UI for the majority of users.
The link from the Cumulocity UI to the documentation for the Edge component was previously outdated. With this change, the link has been updated to point to the correct location in the documentation. This ensures that users can easily access the relevant information and guidance for using the Edge component without encountering any broken links or navigation issues.
The Service-level agreement for Microservices deployment now provides a more precise definition on what is included in the Microservice Hosting functionality for your custom microservices. It also describes how you can benefit best from the service.
The Home page has been enhanced so that you can investigate the current status of your offloading pipelines. The status includes which offloadings are currently running, which ones have recently failed, and which ones have completed successfully.
The editor for managing additional result columns of an offloading pipeline has been enhanced with convenience tooling for exploring nested data. Using sample data retrieved from the corresponding Cumulocity base collection, you can interactively browse through the structure of the data in order to determine which specific sub-structure you want to offload.
Previously, icons that could not be used when a model was active (that is, in read-only mode) were shown as disabled in the model editor’s toolbar. To improve usability when in read-only mode, icons that cannot be used (such as the save icon) are no longer displayed in the toolbar.
When adding a new model or when editing the name of a model in the Streaming Analytics application, you can now resize the Description field. This is helpful when editing or viewing a longer description, including the case of the samples that have very detailed descriptions.
As published earlier, see release 10.15, Cumulocity has announced the availability of Microservice API version 2 and the deprecation of API version 1 to comply with new security requirements. Microservice API version 2 provides an improved microservice container security context restricting the invocation of privileged Linux Kernel APIs. Today Cumulocity announces the creation of alarms when subscribing a tenant to microservices still using API version 1. In Q3 2024 Microservice API version 1 will be removed from Cumulocity SaaS instances and in the yearly 2025 release. If not done yet migrate your microservices to API version 2. Refer to Microservice migration to API version 2 in the user documentation to understand how to accomplish this. Otherwise your microservices in Cumulocity SaaS instances may stop functioning in Q3 2024 or in environments using the yearly 2025 release.
For the offloading of the measurements collection Cumulocity DataHub offers a TrendMiner mode, which is designed for the specific interaction with TrendMiner. This mode is deprecated and will be removed in a future release as the integration with TrendMiner will be discontinued.
The services component was previously an integral part of the default Device Management application. With this change, the functionality for services has been modularized into a plugin. By default, users will still have access to services within the Device Management application. However, if not needed, the functionality can be removed by deactivating the plugin. This approach offers flexibility for users who may or may not require certain functionalities within the application.
The Advanced Software Management functionality was previously an integral part of the default Device Management application. With this change, the Advanced Software Management service has been restructured to function as a separate plugin. It remains included by default but now offers the flexibility to be added or removed as needed.
Previously, alarms could not be shared as they had no unique link to reference them, for example in mails or chats. With this change, each alarm gets an unique link. This allows to share alarms and navigate between alarms more easily.
In some situations, managed object operations in Cumulocity could take an unexpectedly long time without providing any feedback to the user. For more transparency, an alert is now shown in the UI when a certain operation exceeds a specific duration.
If a user upgraded one of the default web applications (for example, Cockpit) after it had been cloned, it would only include the plugins that the application had offered during the initial clone/installation of the application. If additional self-imported plugins were introduced in the upgraded version, these would not have been present when using the application.
This especially caused issues when features of applications which were previously present as standard Angular modules were migrated to self-imported module federation plugins, as these features were missing until the plugin was manually installed to the application.
To fix this issue, an exclude list for these self-imported plugins has been utilized, in addition to the already existing include list used for the usual plugins.
Previously, the asset selector did not show the currently selected element by default, requiring users to always manually search for and select the desired asset. With this change, the asset selector now automatically displays the selected element when opened. This improvement streamlines the user workflow by eliminating the need to repeatedly locate and select the same asset, saving time and effort.
To provide a better user experience when displaying hierarchical data in a data grid, expandable rows have been introduced. With this change, users can now expand or collapse rows in the data grid to show or hide nested information. This allows for a more compact and organized presentation of data, especially when dealing with complex hierarchies or large amounts of related information. The expandable rows feature seamlessly integrates with the existing data grid component, providing a consistent and intuitive way for users to interact with and navigate through the displayed data.
Documentation has been added on how to style the shell application via plugins. For details, refer to the Cumulocity Codex.
The Codex documentation provides information about developing applications with the Cumulocity platform. To make it easier for users to understand and use dynamic forms in their applications, the Dynamic forms page in the Codex documentation has been extended. For details, refer to the Cumulocity Codex.
A dashboard manager view has been added to streamline the management of device type dashboards. This view aggregates and displays a list of all dashboards assigned to specific device types. From this list, dashboard templates linked to device types can be viewed, edited by navigating to a particular instance and templates can also be deleted if needed.
As announced earlier, a redesign of the alarms feature has been introduced with both visual and functional enhancements.
Visual and UX enhancements:
Functional improvements:
As announced earlier, the report module has been extracted from the Cockpit application and added as a separate plugin.
This is a first step towards removing the reports module entirely and replacing it with the dashboard manager.
This change might be a breaking change as the reports module is no longer a part of @c8y/ngx-components/context-dashboard, but is be part of @c8y/ngx-components/report-dashboard.
This change does not affect the layout and UX of the Cockpit application nor does it add any new functionalities. As a side effect, a performance improvement might be noticed as reports from now on will be loaded lazily (that is, only when users navigate to the Reports page).
To provide more flexibility for configuring applications, Cumulocity now supports loading dynamic options from application-specific paths. With this change, each hosted application will load its dynamic options from a path that includes the application context path. This allows application-specific configurations to be loaded dynamically.
The Cockpit application would now load it’s dynamic options from: /apps/public/public-options@app-cockpit/options.json while it previously did so from: /apps/public/public-options/options.json.
This change was done as a preparation for upcoming changes to the branding manager.
JWT authentication with Cumulocity has been deprecated since release 10.6 and will be removed in Q3 2024 for the SaaS instances and in 2025 for the yearly releases.
This authentication method is not to be confused with SSO (single sign-on) or OAI-Secure authentication, which are both recommended and still supported.
This change will only impact you if your organization used an early version of SSO on Cumulocity.
For customers on the public cloud instances we will get in touch with you if you are using this type of authentication.
For self-hosted or self-managed instances you need to do the following:
Ask your Operations team to run this script. This will verify
whether any tenant collections have an authenticationProviders configuration and
if any tenant has the tenant options configured with the category token.publicKey.
If either an authenticationProvider configuration or the tenant option token.publicKey category exists this indicates that the deprecated JWT is, or was, used in the past. In this case you need to check your external services for use of the JWT authentication and change it to use either SSO or OAI-Secure. These two methods provide a better and more secure approach to authentication.
These methods are documented here:
In the Import dialog for asset models, users can now see Child asset models and Asset properties columns in the preview step.
When adding child asset models or asset properties to an asset model, those already added will no longer appear in the dropdown list.
The “Replace device” functionality is now delivered as a self-hosted plugin by the Device Management application. This way, the functionality can easily be removed from the application if not needed.
Additionally, the device replace wizard was made more extensible by introducing hookable interfaces (hookDataGridActionControls and hookService).
It is now possible to directly create operations for generated OPC UA devices. This does not apply to all OPC UA operations. Only node-specific operations can be executed on that level. General operations such as address-space scan are still only allowed on the OPC UA Server. An additional configuration (gateway.operation.validateDeviceOperationNodes) has been added to enable/disable a validation check if the node-specific operation is done on a node which belongs to the device. If the check is enabled the opcua-device-gateway executes the operation after validation. If the node doesn’t belong to the device node list an alarm is created.
The ManagedObject event has a unique way of handling c8y_Position fragments that have the parseable float values added to their position property, and all other values added to their params property. All other events of the Cumulocity transport API simply add the fragment as a whole to their params property. This has made it cumbersome to robustly copy c8y_Position to a ManagedObject from another event and vice versa. To make this easier, two new helper actions have been added to the ManagedObject event to populate ManagedObject from a c8y_Position object, and conversely create the object from the ManagedObject event.
action setC8yPosition(any c8y_Position)
This new action sets the ManagedObject using the c8y_Position object. This must be of the form dictionary<string, any>, but is validated prior to use. Example:
on all Event(type="locationUpdate") as evt
{ ManagedObject mo := new ManagedObject;
mo.id := evt.source;
mo.setC8yPosition(evt.params.getOrDefault("c8y_Position"));
send mo to ManagedObject.SEND_CHANNEL; }
action getC8yPosition() returns dictionary<string, any>
This new action produces a c8y_Position style object from the ManagedObject. Example:
evt.params["c8y_Position"] := mo.getC8yPosition();
To enhance the user experience, a switch has been added to the authentication settings, which allows to disable/enable case-sensitivity in usernames. When the switch is turned on, username validation will now treat uppercase and lowercase letters as distinct, requiring users to enter their username exactly as it was set. This affects all users.
The deprecated hookDeviceGridAction has been removed. Instead the recently introduced hookDataGridActionControls should be used. It gives more control over data grid actions, such as allowing actions to be added to any data grid or to override existing actions.
A new SmartREST template has been added. Using the template ID 150, it is now possible to set the list of Cloud Remote Access protocols supported by a device.
In the upcoming version the report module is extracted from the Cockpit application and added as a separate plugin.
This is a first step towards removing the reports module entirely and replacing it with the dashboard manager.
This change might be a breaking change as the reports module will no longer be part of @c8y/ngx-components/context-dashboard, but will be part of @c8y/ngx-components/report-dashboard.
This change does not affect the layout and UX of the Cockpit application nor does it add any new functionalities. As a side effect, a performance improvement might be noticed as reports from now on will be loaded lazily (that is, only when users navigate to the Reports page).
The Components > Forms > Dynamic forms page in the Codex has been extended with additional details and examples to better explain the concept and usage of dynamic forms.
In the past, private smart rules had the property contextData in c8y_Context, even if the rule did not use it. This is no longer required. Private smart rules can now be created without the contextData property, to avoid storing redundant data in the database. This change only affects the creation of new private smart rules. Existing smart rules are not impacted.
Users can now order the complex property keys by dragging and dropping them using the drag icon which appears on hovering over the row.
Support has been added for retrieving JWT session tokens with X.509 certificates via REST API for devices. For details, refer to the Device authentication user documentation.
To simplify the login process, tenant administrators can now activate an option which allows users to log in with case-insensitive usernames or aliases.
LWM2M can now pass core link resources to external decoders. In addition, the user documentation has been extended to better explain how the platform passes LWM2M resource data to decoder microservices.
It is now possible to build an application with the –zip argument. This will generate a ZIP archive which contains the application and its dependencies in addition to the regular build artifacts.
The following utility functions have been added to the TimeFormat event library to help with comparing and manipulating datetimes. As with the existing functions, the new utility functions work for the local time zone, an arbitrary time zone and, where appropriate, the UTC time zone.
dateComponent: Gives the datetime for the previous midnight in the time zone at the given datetime.timeComponent: Gives the number of seconds since the previous midnight in the time zone at the given datetime.daysSinceEpoch: Gives the number of Julian days since the beginning of the epoch at the given datetime.getOffset: Gives the offset in seconds of the time zone from UTC at the given datetime, taking into account any daylight savings that may be being applied.getRawOffset: Gives the base offset in seconds of the time zone, that is, without daylight savings applied.For example, there are two ways to check if it is midnight in your local time zone:
float now := currentTime;
// Method 1
if TimeFormat.dateComponent(now) = now
{
// It's midnight.
}
// Method 2
if TimeFormat.timeComponent(now) = 0.0
{
// It's midnight.
}
For usage information, see the API Reference for EPL (ApamaDoc). This is available in Apama 10.15.5.
In the upcoming version, a redesign of the alarms feature will be introduced with both visual and functional enhancements.
Breaking change
AlarmsWidgetModule from @c8y/ngx-components/widgets/implementations/alarms. To use the new alarms view only, users must import the AlarmsModule from @c8y/ngx-components/alarms.Visual and UX enhancements:
Functional improvements:
In a future version, we will update Angular to version 17. This update brings improvements and new features but may also introduce breaking changes that could impact your existing implementations.
To ensure a smooth transition and help you to adapt your implementations, we will provide an upgrade documentation when this change happens. This documentation will help you navigate through the changes and update your codebase accordingly.
In the upcoming version, we will introduce redesigned dashboards with both visual and functional enhancements as well as new functionalities.
Visual and UX enhancements:
Functional improvements:
New functionalities:
For details refer to Working with dashboards.
Messages processed by Notifications 2.0 are stored persistently by the Cumulocity Messaging Service until they have been delivered to, and acknowledged by, all interested consumers. Likewise, messages processed by the microservice-based data broker are stored persistently until they have been delivered successfully to the destination tenant.
The current persistent storage limits for these services are considered too large for typical use cases, which can lead to excessive resource consumption and consumers being forced to process outdated messages after a disconnection.
Therefore, these limits will be lowered to better align with the expected usage patterns of the services.
These changes will take place not less than three months from the date of this announcement, on or after July 1st, 2024.
Message backlog quota
Persistent messages are stored in a “backlog” until they are received and acknowledged. The maximum size of a backlog is determined by the “backlog quota” limit, which directly affects the number of unacknowledged messages that can be stored and therefore the resource consumption of the platform. If the quota limit is reached, no new messages can be added to the backlog until some older messages have been consumed and acknowledged.
For Notifications 2.0, a separate backlog exists for every unique subscription name used with the /notification2/subscriptions API. This backlog is shared by all subscriptions using the same subscription name, and by all consumers attached to that subscription. For the microservice-based data broker, a separate backlog exists for each data broker connector.
Summary of changes to message backlog quota limits:
| Service | Current Limit | New Limit |
|---|---|---|
| Notifications 2.0 | 2 GiB | 25 MiB |
| Microservice-based data broker | 2 GiB | 50 MiB |
For example, assuming an average message size of 200 bytes, each Notifications 2.0 subscription will be able to retain approximately 130,000 unacknowledged messages in its backlog. Similarly, each microservice-based data broker connector will be able to retain approximately 260,000 messages.
Message time-to-live
Alongside the backlog quota reduction, a new default message “time-to-live" (TTL) limit will be introduced. Any unacknowledged messages will be automatically deleted if they have been on the backlog for longer than the TTL limit. This policy helps to limit overall resource usage and reduces the need to process outdated data after a prolonged disconnection of a consumer or destination tenant.
Summary of changes to message TTL limits:
| Service | Current Limit | New Limit |
|---|---|---|
| Notifications 2.0 | ∞ (no limit) | 36 hours |
| Microservice-based data broker | ∞ (no limit) | 36 hours |
Additional details
The message backlog quota and TTL are configurable for each Cumulocity tenant. Message backlog usage will be monitored during the three-month transition period, to identify tenants that may exceed the new limits when they are enabled. The owners of such tenants will be contacted to understand their use cases and whether a non-default limit could be appropriate.
Please contact product support if you have any questions or concerns about these changes.
The text on the button in the Cockpit setup wizard has been updated. This change improves the clarity and consistency of the text for users going through the setup flow.
The measurement display line size has been increased in both the “Linear Gauge” and the “Silo” widget. This enhancement improves readability, making it easier for users to interpret measurements at a glance.
The input range component (c8y-range) can be used to show a slider to configure a range. The styling and documentation for this component has been improved to better suiting the overall styling of components and forms.
To improve the management and discoverability of services in Cumulocity, a new service registry has been introduced allowing services to register with the platform via hooks.
Previously, performing string.toDecimal() for a string with an invalid conversion resulted in a ParseException error. This now returns “0.0”. This was done to make the experience of using toDecimal() similar to using toFloat(). If you want the previous strict behavior, use decimal.parse() instead.
In the Analytics Builder model manager, the Import model command in the toolbar has been changed to a dropdown menu. This dropdown menu contains a new Paste command. If you click this command and the clipboard contains valid JSON code for a model, a card for the pasted model is shown in the model manager. This change complements the accessibility enhancement that allows the JSON for an Analytics Builder model to be copied to the clipboard by allowing the JSON to be pasted back into Analytics Builder after any changes have been made. In addition, the dropdown menu contains an Upload command. This has the same functionality as the Import model command from previous versions. See also Pasting a model and Uploading a model.
XSS protection has been enhanced in the “Asset notes” widget.
The JSDoc annotations have been improved. Changes include fixing broken links, updating outdated information, adding missing code snippets, and improving overall clarity. These improvements aim at providing developers with better references and guides when working with the Web SDK.
In the Subassets page of the Digital Twin Manager, the properties in the complex custom property were sorted alphabetically. Now, the sorting reflects the order specified by the user in the Digital Twin Manager.
The version numbers for the frontend and backend are no longer displayed in the platform UI. Instead, details on all components can be downloaded via the Download platform details button. This change was motivated by a component split resulting in many different components following different version number schemes. However, custom apps developed with the Web SDK may show a default version number if desired. Support requests should now always include the platform details information.
Improved the consistency of support of Enter and Escape keys (for save and cancel actions, respectively) on the following views: tenant details, user details, global role details, retention rule settings, branding configuration.
In the Subassets page, context help now provides more specific information if the displayed group is a smart group.
The user documentation and the tooltip for the “Use source timestamp” configuration have been improved to explain how the LWM2M agent makes use of timestamp information if reported by a device.
The Tracking tab in the device details has been migrated to Angular. The obsolete AngularJS module AssetTrack has been removed from the imports of the Device Management application (import @c8y/ng1-modules/devicemanagement-tracking/cumulocity.json). It is deprecated and will be removed in the future. With this change, an issue with incorrect results of custom date range filters has been fixed. Moreover, position marker popups have been made more informative.
The supported security modes, which are available for selection on the configuration page, are now retrieved dynamically from the LWM2M agent rather than being hardcoded in the UI.
The AngularJS module AssetTrack (c8y.parts.tracking) has been removed as it is now considered obsolete. To include device tracking in your applications you can now use the Angular standalone TrackingComponent (@c8y/ngx-components/tracking) or directly provide the trackingFeatureProvider environment provider.
In the Analytics Builder model manager, the Copy command has been added to the actions menu of a model. This is an accessibility enhancement that allows you to copy the JSON for an Analytics Builder model to the clipboard so that you can quickly paste it into a third-party editor. The JSON can then be read, for example, by a screen reader or in a higher contrast environment. The new Copy command is also available to read-only users. In addition, the Download command, which also appears in this actions menu, is now also available to read-only users. See also Copying a model and Downloading a model.
The Alarm, Event, ManagedObject and Operation events now no longer throw exceptions from the isCreate() and isUpdate() actions. If the event being checked was generated in EPL code, these two actions now simply return false. try ... catch blocks around these calls are no longer necessary if the event being checked was generated in EPL code.
EPL code that uses these actions therefore behaves more robustly because it no longer throws exceptions that, if not caught properly, cause the monitor or app to terminate.
In the unlikely case that the try ... catch block is used to intentionally check for internally generated events, you need to change the check to the following:
if not (evt.isCreate() or evt.isUpdate()) { ... }
In Analytics Builder, the dialog box that appears when you select a different input source or output destination for an input or output block now allows you to filter the entries that appear in this dialog box. By default, the dialog box displays all defined devices, device groups, smart groups and assets. This is the same as the previous behavior. If you also want to display other managed objects in the dialog box, you can now select the “Other” checkbox. See also Editing the parameters of a block.
The Apama-ctrl microservices now have Red Hat UBI 9 as their base operating system. Previously, this was Red Hat UBI 8. With version 9, security has been improved.
As announced earlier, see release 10.18, Cumulocity SaaS instances will gradually be switched to Linux cgroup v2 in the second half of the year 2024. Microservices must use a Linux cgroup v2 aware application runtime from then on. When executing microservices which are not compatible with cgroup v2 on Cumulocity in these versions it might happen that the information provided by the application runtime concerning available CPU and memory is not correct. This might lead to incorrect memory and thread allocation in the microservice container process.
cgroup is a Linux kernel feature to organize processes hierarchically and distribute system resources along the hierarchy in a controlled and configurable manner. Every process in the system belongs to one and only one cgroup. In Cumulocity cgroups are used to enforce container resource limits.
When using the Cumulocity Microservice SDK for developing microservices, ensure to configure a Java version which is cgroup v2 aware when building your microservice. When using Java 8, ensure to use openjdk8u372 or higher. When using Java 11, use Java 11.0.16 or higher, or use Java 15 or higher. When using a server runtime other than OpenJDK Java as microservice application runtime, refer to the documentation of the provider.
The user documentation and the tooltip for the Use source timestamp configuration have been improved to explain how the LWM2M agent makes use of timestamp information if reported by a device.
The LWM2M agent realtime subscription for device operations now has a limited Time-To-Live (TTL) duration. The default TTL duration is 3 minutes. This setting may be configured on platform level.
The default handling of object instance actions for LWM2M objects 3, 4 and 6 can now be turned off. In addition, the default server-side firmware update state machine for object 5 can be disabled. These settings can be enabled/disabled in the device´s LWM2M configuration in the UI.
The password can now only be changed by the currently logged-in user. Administrators can no longer change the password and email for other users.
The auto-registration option in trusted certification does not support devices communicating via the LWM2M protocol. This information has been included in the tooltip on the Trusted certificates page and in the user documentation.
In the Subassets view, a “Replace device” option is now available in the context menu of every supported device. Previously, the “Replace device” option was only available in the All devices page. Moreover, a Replace device button has been added to the “Device status” widget on the Info tab in the device details. This functionality does not support LWM2M devices.
For LWM2M devices, it is now possible to switch off the sending of empty measurement/event/alarm/custom actions data for individual resources. Moreover, you can toggle on/off or optionally skip empty values for all resources using the LWM2M device protocol at once.
A new default property “Location” has been introduced. Add the Location property to the desired asset model to assign co-ordinates or select the location on a map while creating an asset.
The bulk import template now shows any default values that are set for asset properties.
The DTM version is now displayed in the right drawer under the Platform info section.
During the creation of asset models, asset properties and assets, upon entering input in the Key field, if the value entered is invalid then an error message will be shown, and if the value is valid and all required fields in the form are filled, the Save button will be enabled - no need to click outside the field. With de-bouncing implementation, the API requests are triggered after a short delay following the last key entry, significantly reducing the frequency of calls and enhancing the responsiveness of the application.
Key value pairs in a complex property can now be ordered as needed by entering the desired order in the Order field.
A search function has been added to the asset model dropdown when creating new assets.
Renamed the column heading Keys to Identifier and the column heading Terms to Translation in the Localization page.
Users now receive validation errors when incorrect exponential values for asset properties are entered in number type fields during asset creation.
Non-mandatory steps that are skipped during the creation of an asset instance are now distinguished by a grey-colored tick.
DTM URLs have been modified to reflect the naming conventions followed for DTM entities.
Optimized calls to the backend from the Assets property and Asset model page.
Access to the bulk import feature can now be controlled using Cumulocity global and inventory roles.
Filters that apply for columns in the Localization page are now saved automatically.
Previously, two links for downloading diagnostics information were available at the bottom of the Streaming Analytics application. These links have been moved. They are now available when you click the User button in the Streaming Analytics application to display the right drawer. The right drawer now displays these links in a new Diagnostics section. See also Downloading diagnostics and logs.
In addition, the right drawer now also provides a Documentation section with links to the Streaming Analytics documentation.
As announced earlier, see the release notes for release 10.17, to improve security, from a future version, user administrators will no longer be able to explicitly set passwords or email addresses for other users in the tenant. This change prevents that an attacker could have access to all users, in case the administrator account was compromised. Note that the administrator will still have the option to force the user to reset the password on the next login or disable the user.
In order to address security vulnerabilities (CVE-2022-3509, CVE-2022-3510, CVE-2022-3171), the third-party software “protobuf-java” has been updated from version 3.19.2 to version 3.19.6.
The performance of the Inventory API GET /managedObjects has been improved.
The performance of GET requests on the /user/users endpoint has been improved.
The query language used by the managed objects API has been improved. You can now search for fields with null values. MTM-52677
The alarm status and severity are now case-insensitive. When searching by alarm status active the API also returns alarms with status ACTIVE. The same applies for the alarm severity, that is, searching for critical alarms also returns CRITICAL alarms. Alarms with status active and acknowledged are now subject of alarm deduplication.
This version of Cumulocity Streaming Analytics includes the Apama version 10.15.4 correlator. EPL apps developers should also refer to What’s New In Apama 10.15.4 in the Apama documentation.
The ExplainQuery result info has been extended by the algorithm used when performing queries for a user with inventory roles:
GET {{url}}/inventory/hierarchy/info/management
Example: {“algorithm”: “Legacy” }
Possible results: Legacy, LimitedSourcesAcl, PostFilteringBySourceAcl, SingleSourceAcl, HierarchyAcl, SingleAgentAcl, SingleDeviceAcl, SingleAgentAndDeviceAcl.
The EPL memory profiler snapshots, which were previously only included in the enhanced diagnostics information, are now also included in the basic diagnostics information. This is helpful in case a high memory usage alarm is raised when the Apama-ctrl microservice consumes 90% of the maximum memory permitted for the microservice container and you only have basic diagnostics information available. See also Downloading diagnostics and logs.
The commands for downloading analytic models and EPL apps have been renamed from Export to Download. See also Downloading a model and Developing apps with the Streaming Analytics application.
A new EPL sample named “Receive update notifications” can now be accessed from the EPL editor of the Streaming Analytics application. It shows how to write an EPL app that can distinguish between notifications for creating and updating managed objects, measurements, alarms, events, and operations. See also Developing apps with the Streaming Analytics application.
For more detailed information, see Receiving update notifications in the Apama documentation for the Cumulocity transport connectivity plug-in.
Support of automated persistence of measurement values under the c8y_LatestMeasurements fragment has been introduced. If a measurement is created with a series that matches the configuration the device managed object is updated with the last series sent to the platform.
For details on how to enable the feature and how it works, refer to Managing data.
The Analytics Builder input blocks can now be configured to receive inputs from all input sources. You can simplify global tasks by creating a single Analytics Builder model that works with inputs from all input sources, for example, send an email for every critical alarm of type C8Y_TemperatureAlarm that is generated, regardless of the device that generated the alarm. A new All Inputs option is available for this purpose.
When you add a new block to your model or when you edit the parameters of a new template instance, the All Inputs option is now set by default. See also Editing the parameters of a block.
You can also use the new All Inputs option in the replace dialog box when replacing input sources. Keep in mind that the replace dialog box is used for both input blocks and output blocks. So when you replace a device with the new All Inputs option, all matching output devices are automatically changed to trigger devices. See also Replacing sources or destinations.
A new Analytics Builder sample named “Aggregate measurements per input source” is now available, which creates new measurements that average the measurement values for each input source that has a specified fragment and series. This is a simple sample that creates a model without template parameters, so you can activate the model directly in the model manager. See also The Samples tab.
As of a future version, the full text search functionality will only include the following properties:
_idnametypeownerexternal idA text search functionality corresponds to a text parameter of GET {url}/inventory/managedObjects.
Example: When executing the following query: GET {url}/inventory/managedObjects?text=c8y_MajorDevice only the properties id, name, type, owner and external id will be examined.
This change improves the user experience of the text search functionality by returning more relevant managed objects. At the same time it improves the Inventory API performance.
This change will be implemented after a 3-month period at the earliest.
The Constant Value block in Analytics Builder now supports float and boolean value types
and can produce output of these types. This enables the block’s output to be consumed by other blocks that take input of type float or boolean like the blocks in
the Logic and Aggregate categories. The Type parameter is also now optional. If a type is not selected, the type of the output value is inferred from the Value parameter.
In Analytics Builder, an icon is now provided for removing a template parameter from the Template Parameter dialog box. The actions menu (the three vertical dots at the end of a row) has therefore been removed. See also Managing template parameters.
A new text index has been introduced for the GET /inventory/managedObjects endpoint. By default it only includes the following fields:
_id, type, name, owner, externalIds
You can now create a selection list for an Analytics Builder template parameter. This allows the model author to provide a predefined list of values for the user to select from, ensuring that the user only enters the values you allow. You can define selection lists for types such as string, float, source or destination, or geofence and you can also select a specific value to be the default value. The values that you define for a selection list are then available for selection when you create instances of the model. See also Adding a selection list for a template parameter.
Previously, when reactivating an Analytics Builder model, an error was thrown if a subasset of a device group or asset hierarchy from which the model receives events no longer existed in the inventory, for example, because a device was deleted. As of this version, missing subassets in a device group or asset hierarchy are ignored and an error is no longer thrown. However, if the deletion of a subasset results in an empty device group or asset hierarchy, an error is still thrown.
As announced with release 10.16, the Machine Learning block in Analytics Builder has been removed. This is in line with the deprecation of Machine Learning Engine announced in release 10.16.
If users do a search from the UI or via the Inventory API, the text parameters are now sorted by relevance making it easier to see the more appropriate data returned.
The Alarm and Operation events have new constants which define the valid values for their respective status and severity members. This allows more robust coding and eliminates runtime errors caused by typographical errors with literal strings.
In the single sign-on configuration page, users can now enable and configure the external token validation process.
Due to a change in Cumulocity announced with release 10.17, Apama 10.15.4 now explicitly sets withTotalPages to true for applicable requests.
Range-based queries (such as FindManagedObject) attempt to retrieve all resources matching the query parameters by default. Explicitly setting a value for currentPage or setting withTotalPages to false can improve the query performance by disabling paging. See the information on REST usage and query result paging in the Cumulocity OpenAPI Specification for more information.
The HTTP client comes with two new configurable options, maxResponseKB and maxResponsePolicy, that enable the user to restrict the size of the server response. These options can be set for the entire transport, or on individual requests. Support has also been added to the predefined event definitions (see Using predefined generic event definitions to invoke HTTP services with JSON and string payloads in the Apama documentation). This enables you to prevent large server responses from causing out-of-memory issues.
The OpenSSL command for generating a “signed verification code” for Proof of Possession has been enhanced to include additional encoding functionality.
It is now possible to copy web applications with versions (packages) and web applications with SHARED availability. For applications with versions, by default the application with the “latest” tag is copied. The new application has a single version and no tags. If you want to copy different versions of an application, you can specify the query parameters “tag” or “version” (only a single version). For details, refer to the Cumulocity OpenAPI Specification.
The repository-connect microservice now offers to sync packages that include a versioning matrix which allows to filter exactly the versions to be synced. Versions which are not included in the matrix but uploaded to the platform will be removed by the microservice.
Searching for items has been improved by filtering on applications, features, microservices and extensions lists.
If only one operand expression is of type string, then string conversion is now performed on the other operand to produce a string at runtime.
For more details, see Additive operators in the Apama documentation.
The EPL language has been enhanced with some convenience methods for common operations such as checking if a string or sequence contains a specified substring or item, and determining if a string, sequence or dictionary is empty.
There is a method to get a sequence value with a fallback default if there is no value at the specified index:
mySequence.getOr(100, "default value");
There is also a powerful regular expression group search for strings that finds the first match and returns the text captured by each “(…)” group of the regular expression:
// Prints ["Bob", "Eve"]
print "Today Bob met Eve".groupSearch("([a-zA-Z]) met ([a-zA-Z])").toString();
The following table lists all new methods:
| New method | Description |
|---|---|
string.contains(), sequence.contains() |
Determines whether the string or sequence contains the specified substring or item. This is a convenient alternative to checking the find() or indexOf() integer value. |
string.groupSearch() |
Finds the first regular expression match in this string, and returns a list of the matched “(…)” groups. |
string.startsWith(), string.endsWith() |
Determines whether the string has the specified prefix or suffix. |
string.rfind() |
Locates a string within this string, starting from the right (that is, from the end) of the string. |
string.substringFrom() |
Extracts part of this string, starting at a specified character and ending at the end of the string. |
string.quote() |
Adds quotation marks and escaping according to the standard EPL event representation. This method may be useful for logging strings that may contain spaces and newline characters. This is the reverse of the existing string.parse() method. |
string.isEmpty() |
Determines whether the string has a length of zero characters. |
dictionary.isEmpty(), sequence.isEmpty() |
Determines whether the size is 0. |
any.isEmpty(), optional.isEmpty(), listener.isEmpty(), Channel.isEmpty(), chunk.isEmpty() |
Aliases for the existing empty() methods on these types. It is recommended to use the new isEmpty() methods, but the use of empty() is not deprecated. |
sequence.getOr() |
Gets the value at the specified index, or a specified fallback value if the index is not valid. |
For more information, see the API Reference for EPL (ApamaDoc).
Instead of throwing an out of bounds exception, it is now possible to refer to items near the end of a sequence by specifying a negative index. For example, seq[-1] gives the last item in the sequence and seq[-2] gives the item before that. Negative sequence indexes can also be used in the sequence.remove() and sequence.insert() methods.
Note that negative values cannot be specified when accessing a sequence item using the any.getEntry() method.
It is no longer necessary to add an <any> cast around the first item in a sequence or dictionary literal that contains a mixture of different types. For example, the following sequence literal which produces a sequence<any>:
[<any> 12345, "a string"]
can now be written more simply as
[12345, "a string"]
This simplifies the functional example given in EPL enhancements in 10.15.3 in the Apama documentation: the <any> is no longer needed in the setFields call.
In EPL, it is now possible to discard the return value of a function or expression and not assign it to a variable. This is useful if you only want the side effects of the function and do not need the return value. Be careful not to discard a return value that indicates important conditions that your program may need to use.
Previously, you had to write:
any _ := Functional(newAlarms).map(Fn.getEntry("alarm")).map(allAlarms.append);
But now you can write:
Functional(newAlarms).map(Fn.getEntry("alarm")).map(allAlarms.append);
See also Using an expression as a statement in the Apama documentation.
The com.apama.functional.Fn and com.apama.functional.Functional events now have a new method mapKeys which can return a dictionary container with modified keys. For more details, see Functional operators in the Apama documentation and the API Reference for EPL (ApamaDoc).
The functional onTimeout action now returns the wait listener it creates so that it can be quit if needed. For more details, see Functional listeners in the Apama documentation.
EPL monitors are no longer terminated by default when an uncaught exception is thrown in some cases.
Programming errors and unexpected data in incoming events can cause an uncaught exception in EPL. This causes the monitor instance to be terminated, rendering the application unusable. To provide a better experience, exceptions thrown from listeners and stream listeners which are not caught no longer terminate the monitor instance. Instead, they just stop the handling of the current event.
Developers are still encouraged to correctly catch and handle the exceptions in their EPL. If an exception is thrown and not caught, it is still possible for the events to be lost and not correctly handled.
This is a change in behavior. Some users may be relying on this previous behavior, in combination with an ondie() action. EPL with an ondie() action retains the previous behavior of always terminating the monitor and calling ondie(). If you must retain the previous behavior, you can add an empty ondie() action to your monitor.
where or group by clause, or a window definition) which throws an exception, this still terminates the monitor instance.To avoid confusion as to whether events were being sent towards Cumulocity or being received back as updates from Cumulocity, the Cumulocity event definitions API was changed in a previous release (10.5.2.0) so that the existing CHANNEL constant was deprecated and replaced by either SEND_CHANNEL or SUBSCRIBE_CHANNEL constants as appropriate. Some events were omitted from these changes and this has now been rectified. Therefore, the CHANNEL constant is deprecated on the following events:
SubscribeMeasurementsUnsubscribeMeasurementsFindManagedObjectResponseAckFindMeasurementResponseAckGenericResponseCompleteSubscribeUnsubscribeIn addition, a new SUBSCRIBE_CHANNEL or SEND_CHANNEL has been added to the following events instead:
SubscribeMeasurementsUnsubscribeMeasurementsSubscribeUnsubscribeThe constants on the following events are instead replaced with SUBSCRIBE_CHANNEL constants on their corresponding Response types:
FindManagedObjectResponseAckFindMeasurementResponseAckGenericResponseCompleteThe API Reference for EPL (ApamaDoc) has been amended to make it clear that acknowledgement events are always received on the same channel as the corresponding response events, and to avoid confusion the CHANNEL constant has been deprecated on those acknowledgement events where it had been defined.
To improve usability, the package availability (SHARED or PRIVATE) can now be set in the package upload wizard.
The dependency on org.json:json has been removed from the Java SDK.
The dependency on com.jayway.jsonpath:json-path has been removed from Java SDK.
Dependencies on org.eclipse.jetty:jetty-* were updated to version 9.4.51.v20230217.
The Spring Boot dependency has been updated to version 2.7.11.
With the introduction of auto-generated SDKs, we provide an always up-to-date developer library with the purpose to facilitate the development of Cumulocity microservices in different programming languages including C#.
The new auto-generated SDKs make our existing Microservice SDK for C# obsolete. For this reason, the Microservice SDK for C# has been removed from our public product documentation.
To learn more about using the auto-generated SDKs, refer to our respective GitHub repository.
The location view in the Device management and Cockpit application has been migrated to Angular. The map provider, the location search, and the map layers are now configurable via application options or tenant options. The angular.js module @c8y/ng1-modules/devicemanagement-location for location was removed and must be migrated or at least removed on update of a custom build application.
In the Device management application, a wizard has been implemented which guides users through replacing a physical device with another one. The replacing device must be registered in the platform in advance and is removed after the replacement procedure has been completed.
Users can now customize the dashboard on the Info tab in the device details. Widgets can be moved and resized, and new widgets can be added from a list of available widgets. The dashboard can be reset anytime to the default dashboard settings. By default, the “Asset notes” widget has been removed.
If the last version of a software is deleted, the software is entirely removed from the repository.
It is now possible to remove a file when updating its file property within a complex property of an asset.
If a pending device in the registration list has been accepted, the device is now removed from the list instead of the list showing the “accepted” status for the device.
In subasset views, smart group filters are now represented by a filter chips dropdown instead of displaying the raw text filter.
In the Software tab in the device details, currently the Filter by software type dropdown in the Installed software list and the Install software modal shows types based on existing types in the software repository. This has been changed to show only the supported software types announced by the device in its c8y_SupportedSoftwareTypes fragment. If a device has not announced supported software types, then again all available existing software types are listed.
As announced earlier, see also release 10.17, shared classes, components and services from the @c8y/ngx-components/device-grid are deprecated. Those deprecated items have now been removed.
This change only affects you, if you or your development team use the Web SDK to extend Cumulocity UI applications or to build your own web applications. If you use the device-grid functionalities, check the deprecation documentation and alter your code accordingly. Refer to the deprecations in the WebSDK resources documentation for the device-grid service. Other deprecations for reference are also marked in this documentation.
A versioning matrix can now be added to the cumulocity.json of a blueprint/plugin. When a blueprint/plugin is installed, its version is validated against the platform version. If the versions are incompatible a warning is shown.
The Web SDK has been upgraded to Angular 15.
The context help and other help links point to a documentation website defined by the application option docsBaseUrl. This option now supports the {{ version }} placeholder, which allows the administrator to choose whether to use versioned or unversioned documentation links. By default, versioned links will be used.
In release 10.16.0.0, core re-usable data-grid-related components and services have been moved to the @c8y/ngx-components. The initial implementations were deprecated and have now been removed.
A new activeClassName input has been added to the data-grid and device-grid components. It can be used to define a class name to be appended to the last clicked row in the grid. Its default value is “active”. This option can be deactivated by setting the input value to an empty string.
In the data grid component, a new filter overview dropdown has been added. It displays all active filters in one place and allows users to remove filters. For custom column implementations, the WebSDK allows developers to provide their own logic to display active filters as items in the filter overview.
Shell applications now wait with their initial navigation until all plugins have been loaded. This allows, for example, to directly navigate via a link to a route which is provided by a plugin.
Data grid components no longer persist their current page. After reloading they always return to the first page in the list.
References to the deprecated classes ComponentFactory and ComponentFactoryResolver have been removed from the @c8y/ngx-components library.
Scaffolding an application that uses the remotes application option via the c8ycli now also updates the context path used in the remotes application option.
The Impact connectivity feature has been removed from @c8y/ngx-components and @c8y/ng1-modules packages.
When installing a plugin and the tenant has no custom applications, it is now possible to duplicate any existing application.
The grid used in dashboards for placing widgets now supports 24 instead of 12 columns. This allows finer-grained positioning of widgets on dashboards. In case you share the same dashboards between different application versions, we strongly recommend you to upgrade to a version that includes the fix MTM-55923.
If a user with minimal permission tries to delete a device an error message showed up stating “Could not delete device.” Now, together with the failure message, the reason of failure is displayed.
It is now possible to change the aggregation for all widgets in a dashboard that support the dashboard context functionality at once. The following widgets support the dashboard context aggregation: Data points graph, Data points graph 2.0, Data points table.
The endpoint validation happening during the connection to an OPC UA server can now optionally be disabled. This can be done in the gateway configuration by changing the gateway.connectivity.validateDiscoveredEndpoints setting to “false”. Alternatively, it can be controlled via the OPC UA server managed object by setting the fragment validateDiscoveredEndpoints to “false”. For details, refer to OPC UA.
To be able to provide more information in input fields on the expected input, dynamic form fields now support HTML markup in their description.
The configuration flag fwResetStateMachineOnStart has been added to control if the LWM2M agent resets the firmware update state machine on the client at the beginning of a firmware update. The default of this flag is true which matches the existing behaviour of the LWM2M agent. It is available in the device registration settings.
Added the SmartREST static template 201 for creating measurements with multiple fragments and series.
Added the SmartREST static template 125 for sending heartbeat from a device.
Added the SmartREST static template 507 for changing the device operations status from EXECUTING to FAILED. The operations can be filtered by type. The template is intended for facilitating an operations cleanup after a crash.
If an asset custom property in the Digital twin manager application is declared as required and complex, all of its sub-properties are required too.
Two new LWM2M shell commands have been added.
executelegacy command allows LWM2M execute requests with non-standard LWM2M parameters. The behavior of this operation resembles the semantics of the existing execute operation until version 10.15.coap shell command enables making raw CoAP requests to devices to facilitate non-standard communication in exceptional cases.For details, refer to Handling LWM2M shell commands.
If a widget supports realtime, it can now be linked to the dashboard real-time context to disable/enable realtime on dashboard level. The following widgets support the real-time dashboard context: Data point graph, Data point table, Event list, Map.
If a complex location property is set in the Digital twin manager application, the map is now visible in the asset view and users can select a location on the map.
The performance of the migrateLwm2mDevices operation has been improved. New command line arguments have been introduced with the operation. A list of legacy LWM2M devices can be specified directly from the shell command. Moreover, the migration of the LWM2M client registration objects can be skipped by using an argument.
For details, refer to Migration of the LWM2M devices. [DM-1866]
The details of a LWM2M device now show a LWM2M configuration tab which replaces the LWM2M bootstrap parameters tab. The new tab is better structured and allows detailed configuration. It contains all configuration options of the former LWM2M bootstrap parameters tab as well as additional setting options:
For details, refer to the LWM2M user documentation.
If the new LWM2M configuration tab is not displayed and the LWM2M bootstrap parameters tab is displayed instead, the LWM2M agent is installed in an older version that does not yet support the new tab.
The Device management home page now also provides a customizable dashboard which lets users add customized widgets.
The asset selection in the datapoint selector is now filterable.
As announced earlier, see also release 10.17, at least one query parameter limiting the affected data will now be required to prevent accidental deletion of too many objects during a bulk delete operation. This change affects the following APIs:
DELETE /alarm/alarms requires at least one of the following parameters: source, dateFrom, dateTo, createdFrom, createdToDELETE /event/events requires at least one of the following parameters: source, dateFrom, dateTo, createdFrom, createdToDELETE /measurements/measurement requires at least one of the following parameters: source, dateFrom, dateToThe following time range options have been added to the export configuration: “Last 24 hours”, “Last 7 days”, “Last 30 days”.
LWM2M device connections with X.509 certificates are now supported. The X.509 security mode can be selected separately for the Bootstrap server and the LWM2M server either during device registration or, for existing devices, by using the new LWM2M configuration tab. The Certificate Authority that issued device certificates must be added and enabled in trusted certificates in the tenant.
Together with this change also the following changes are introduced:
Now all LWM2M device security modes can be selected separately for Bootstrap server and LWM2M server connections. This can be defined either during the device registration or using the LWM2M configuration tab of the device.
Under Connectivity in the LWM2M configuration tab, the Bootstrap or LWM2M server connection can be disabled for a device.
During device registration, the “PSK generated” option can be selected for LWM2M Server connection to make LWM2M agent to generate the PSK ID and PSK key credentials for the device. These will be set to the device during the bootstrap process. For details, refer to the LWM2M user documentation.
The MongoDB Java driver has been upgraded to the latest version 4.10.2.