Dynatrace Managed release notes version 1.248

Published date: 2022-08-26

These release notes relate to Dynatrace Managed specific changes. To learn about general Dynatrace changes included in this Dynatrace Managed release, see:

New features and enhancements

Cipher auto-update

Dynatrace Managed installer

We updated the default cipher suites and added a cipher auto-update parameter to the Dynatrace Managed installer. It's set to off for existing nodes and on for new clusters (new nodes being added to the existing cluster keep parameters of a seed node).

When set to on, you set the cipher suites and protocols to default after each upgrade or reconfigure. If you manually change ciphers or protocols (using --ssl-ciphers or --ssl-protocols parameters), the cipher auto-update gets disabled (automatically set to off).

Customize installation for Dynatrace Managed

Operating systems support

Future Dynatrace Managed operating systems support changes

The following operating systems will no longer be supported starting 01 March 2023

Linux: Red Hat Enterprise Linux 8.2
- x86-64
- Vendor announcement
- Last compatible version: 1.252
Linux: Oracle Linux 8.2
- x86-64
- Last compatible version: 1.252

The following operating systems will no longer be supported starting 01 July 2023

Linux: SUSE Enterprise Linux 15.0
- x86-64
- Vendor announcement

Past Dynatrace Managed operating systems support changes

The following operating systems are no longer supported since 01 May 2022

Linux: CentOS 7.6, 8.1
- x86-64
- Vendor announcement
- Last compatible version: 1.232
Linux: Red Hat Enterprise Linux 7.6, 8.1
- x86-64
- Vendor announcement
- Last compatible version: 1.232
Linux: Oracle Linux 7.6, 8.1
- x86-64
- Last compatible version: 1.232

The following operating systems are no longer supported since 01 June 2022

Linux: Ubuntu 20.10
- x86-64
- Vendor announcement
- Last compatible version: 1.234

The following operating systems are no longer supported since 01 July 2022

Linux: CentOS 7.8, 8.2, 8.4
- x86-64
- Vendor announcement
- Last compatible version: 1.246
Linux: Red Hat Enterprise Linux 7.8
- x86-64
- Vendor announcement
- Last compatible version: 1.246
Linux: Oracle Linux 7.8
- x86-64
- Last compatible version: 1.246

The following operating systems are no longer supported since 01 August 2022

Linux: CentOS 7.7
- x86-64
- Vendor announcement
- Last compatible version: 1.238
Linux: Red Hat Enterprise Linux 7.7
- x86-64
- Vendor announcement
- Last compatible version: 1.238
Linux: Oracle Linux 7.7
- x86-64
- Last compatible version: 1.238

The following operating systems are no longer supported since 01 October 2022

Linux: SUSE Enterprise Linux 11.4
- x86-64
- Vendor announcement

The following operating systems are no longer supported since 01 November 2022

Linux: Ubuntu 21.04
- x86-64
- Vendor announcement
- Last compatible version: 1.244

Resolved issues

General Availability (Build 1.248.135)

The 1.248 GA release contains 24 resolved issues.

Component	Resolved issues
Cloud automation solution	3
Cluster	18
Cluster Management Console	3

Cloud automation solution

The "Graph" and "Table" buttons in the SLO wizard are now disabled when errors are detected. (APM-381270)
Navigating to the "Orchestration projects" page from another page now correctly changes the title in the tab. (APM-380508)
The table view in an SLO evaluation is now correctly sorted. (APM-379339)

Cluster

During Session Replay, when watching a non-Windows recording from a Windows machine, thin scrollbars are now used to provide better playback accuracy. (APM-377103)
Service context is no longer lost when navigating from span service/FaaS service overview to distributed traces. (TI-2417)
Remote environment trace fetching works in multi-node environments for Managed. (TI-2894)
Services of type "remote call" no longer use the process group name as part of the service name. (TI-2498)
Fixed a problem that caused a Google Cloud Function service page error when the Google Cloud Function extension was not configured. (TI-2458)
Resolved an issue where the wrong empty state was displayed in Multidimensional analysis (only unreliable dimensions instead of empty result). (TI-2713)
Fixed issue in which audit logs were not stored for the Audit logs API. (APM-383686)
Fixed an issue in which management zone tagging for CONTAINER_GROUP entities didn't work. (K8S-2837)
On the "Deployment status" page, "ActiveGates" tab, visibility of the last update of ActiveGate and its modules is now restricted to users with "Change monitoring settings" permission. (APM-379067)
Dashboard custom dimension filter values that include a colon are now displayed correctly. (APM-379826)
Resolved an issue in which some network metrics went missing after update to Dynatrace version 1.247. (APM-383642)
To ensure evaluation of built-in process group rule 67 to disable monitoring of process `piper`, rule 67 is now evaluated before rules for `Kubernetes namespace exists` (rule 40) and `Container exists` (rule 41). (TI-1805)
The message "The monitoring of this service is currently disabled." is now displayed only when it is disabled for all credentials. (APM-381068)
The maximum length of a metric selector in metric events has been increased to 10,000 characters. (DAVIS-1898)
A web application configuration retrieved via Rest API GET can now be PUT without modifications. (RUM-6796)
Fixed an infrequent case where a duplicate problem was opened after a problem was closed manually. (APM-377371)
Service tag filter for multidimensional analysis now works correctly for tag values that include spaces. (TI-2408)
Fixed an issue where metric queries using multiple entity name filter conditions would fail. (APM-379777)

Cluster Management Console

The specified order of notification recipients is now preserved. (APM-378729)
Cluster admin users are no longer redirected to the environment dashboard when accessing and browsing the Cluster Management Console via the profile page. (APM-377826)
The Dynatrace Managed home page title has been changed from "Dynatrace Managed deployment status" to "Dynatrace Managed deployment overview" to prevent confusion with the "Deployment status" page. (APM-381105)

Update 147 (Build 1.248.147)

This cumulative update contains 3 resolved issues and all previously released updates for the 1.248 release.

Cluster

Resolved issue with the "Metrics browser" that caused an exception when the metric selector encountered a "%" character. (EXA-2422)
Resolved issue with the "Data explorer" in which no data was displayed when the filter included a "\" character. (EXA-2567)
Fixed a problem where certain remote environments could not be used for the cross environment tracing feature. (TI-2967)

Update 169 (Build 1.248.169)

This cumulative update contains 3 resolved issues and all previously released updates for the 1.248 release.

Cluster

Fixed frequent issue detection for disk and AWS alerts. (APM-386093)
Resolved issue in which the alerting configs with parent-aware filters (for example, MANAGEMENT_ZONE filter on SERVICE_METHOD) were considered invalid and not processed by the alerting engine. (DAVIS-2112)
Automatic update no longer fails with hanging 'ss' command. (APM-386468)

Update 182 (Build 1.248.182)

This cumulative update contains 2 resolved issues and all previously released updates for the 1.248 release.

Component	Resolved issues
Application Security	1
Cluster	1

Application Security

Enabling OneAgent feature "Java code-level security evaluation" no longer leads to usage reporting for Application Protection even when Application Protection is not enabled on the cluster. (CASP-17791)

Cluster

Fixed an issue with some OneAgent-raised events, for example, high CPU, being auto-closed after 6 hours, even if the underlying issue still persists. This could also cause problems to be closed early when all of their events get auto-closed too early. (DAVIS-2324)

Update 186 (Build 1.248.186)

This is a cumulative update that contains all previously released updates for the 1.248 release.