Dynatrace Managed release notes version 1.308

Rollout start: Feb 17, 2025

This page showcases new features, changes, and bug fixes in Dynatrace Managed version 1.308.

Across platform

Breaking change Dot Platform | Settings

Settings audit log changes

We adjusted settings audit log generation to improve readability and reduce spam.

  • Updates via API that don’t change the value will no longer appear in the audit log. This typically happens if a script writes identical values often, which could result in many log entries without helpful content.

    Despite being a functional improvement, this is technically a breaking change.

  • The classic web UI is not affected by this for most existing schemas. If a user persists the existing value again (typically changing a value, changing it back, and saving), NO_CHANGE entries might still occur.

Feature update Dot Cluster

Cassandra upgrade to version 4.1

As part of this release, the Cassandra nodes are upgraded to version 4.1.

No manual user-invention or downtime is necessary; the upgrade occurs via rolling updates as part of regular version updates.

Feature update Dot Infrastructure Observability | Hosts

Stability check for OneAgent Automatic Updates

The defaults for automatic updates / stable check have been reduced to 45 minutes for EC2 and non-EC2 hosts. This change improves the Automatic Updates process if maintenance windows are used.

Feature update Dot Infrastructure Observability | Hosts

Remote configuration management (RCM): automatic restart for host tags and properties change

OneAgent will be restarted automatically when host tags and properties are changed via RCM.

Feature update Dot Platform

Upgrade of Jetty to version 10

As part of this release, the included Jetty WebServer functionality is upgraded to version 10.0.24.

No manual user invention or downtime is necessary; the upgrade should happen via rolling updates as part of normal version updates.

In certain high-load scenarios, we have observed a slight increase in CPU and memory usage caused by implementation changes in Jetty 10. If ActiveGate instances are already at their resource limit, we recommend increasing them to avoid possible overload.

Feature update Dot Delivery | Cluster

Updated Dynatrace Managed installer to use Adoptium JRE version 11.0.25 / 17.0.13

The Dynatrace Managed installer has been updated to use Adoptium JRE version 11.0.25 (for Cassandra) and 17.0.13 (all other components).

Feature update Dot Platform

Minor changes in network metrics descriptions

Minor improvements were made to network metrics descriptions visible in the web UI.

Dynatrace API

To learn about changes to the Dynatrace API in this release, see:

Operating systems support

    Future Dynatrace Managed operating systems support changes

    The following operating systems will no longer be supported starting 01 July 2025

    Past Dynatrace Managed operating systems support changes

    The following operating systems are no longer supported since 01 August 2024
    The following operating systems are no longer supported since 01 October 2024
    The following operating systems are no longer supported since 01 November 2024
    The following operating systems are no longer supported since 01 December 2024
    The following operating systems are no longer supported since 01 February 2025

    Resolved issues

    General Availability (Build 1.308.49)

    The 1.308 GA release contains 15 resolved issues.

    Component
    Resolved issues

    Cluster

    • Resolved an issue with Dashboards Classic chart tiles having data points misaligned with the legend. (PAPA-21556)
    • The `/platform/ingest` API endpoint now returns a correct error message on 404. Previously, the endpoint did not adhere to the Dynatrace API guidelines in case a 404 response was triggered. The plain-text answer is now replaced with a proper JSON envelope containing the status code. (PPX-4094)
    • Fixed printing command for installing a node in a rack-aware cluster. (MGD-2050)
    • Filtering in "Deployment status" now works properly when the filter value contains a semicolon character. (DAQ-4186)
    • Fixed an error for resolving classic problem notification placeholders when defining a nested placeholder within another one (for example, `{Tags[{State}]}`). Note: Because this configuration is not supported, instead of having a notification error, the placeholders won’t be resolved. (DI-18378)
    • Fixed a case where temporary write errors for problems with events configured to not merge can lead to resolved notifications being lost. (DI-18433)
    • Fixed an issue that caused a NullPointerException in `SyntheticMonitorMECreatedByMigration`. (DEM-4124)
    • Resolved an issue with NAM placeholder, missing description: added new option "NetworkAvailabilityMonitor" in "Tags" section for "Automatically applied tags". (DEM-3065)
    • The `now()` log processing function now returns the correct value. (PPX-3712)
    • Fixed an issue where dashboard tiles would show wrong failure rates. (MGD-2430)
    • Added a retry mechanism for when fetching distributed traces fails in the distributed traces card. (APPOBS-2417)

    JavaScript

    • Fixed a Session Replay issue in which a message about the frameset HTML tag not being supported was masked and therefore unreadable. (DEM-2672)

    Session Replay

    • Fixed a case when the video for the Session Replay landing page wasn't showing due to the page's CSP policy. (DEM-3312)
    • Session Replay: resolved an issue in which, in some cases, a replay page loaded the same element twice, breaking the replay. (DEM-4954)
    • Improved logging to facilitate investigation of an issue in which a Session Replay was deleted while one was being created, leading to a DeleteException error. This can happen in tenants that are in trial due to adaptive retention. (GRAIL-36180)