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Dynatrace : OneAgent release notes version 1.227

10/19/2021 | 02:42am EST

Rollout starts 18 October 2021

With this release, the oldest supported OneAgent versions are:


OneAgent core dump capture logic has been adjusted for compatibility with Red Hat Automatic Bug Reporting Tool (ABRT).




  • Added support for gRPC 1.40 - 1.41

Operating systems

Current Dynatrace OneAgent technology support changes

Dynatrace OneAgent 1.227 is the last version to support the following technologies

  • OpenTelemetry 1.0.0-RC1 for Go
  • OpenTelemetry 1.0.0-RC2 for Go

Future Dynatrace OneAgent operating systems support changes

The following operating systems will no longer be supported starting 01 December 2021

  • Linux: Fedora 32
  • Windows: Windows Server 1909

The following operating systems will no longer be supported starting 01 February 2022

  • Linux: Red Hat Enterprise Linux CoreOS 4.5
  • Linux: Ubuntu 20.10
    • x86 (64bit-only) PPCLE s390x ARM64 (AArch64)
    • Vendor announcement
    • Last compatible Dynatrace OneAgent version: 1.225

The following operating systems will no longer be supported starting 01 March 2022

  • Linux: Google Container-Optimized OS 81 LTS

The following operating systems will no longer be supported starting 01 April 2022

  • UNIX: IBM AIX 7.2 TL3

Resolved issues

General availability (Build 1.227.137)

18 total resolved issues (1 vulnerability)


  • Beacon requests not on root path (`/xx/rb_xxx`) are now filtered correctly on Asp.Net applications. (ONE-65578)
  • OpenTelemetry .NET no longer injects into preview versions of the System.Diagnostics.DiagnosticSource package. (ONE-65252)
  • Reference to `System.Diagnostics.DiagnosticSource` is no longer needed for `Microsoft.AspNetCore.Http.Abstractions`. (ONE-65682)
  • Broken PurePaths no longer occur when using the new synchronous API to send HTTP requests in .NET 5. (ONE-65445)
  • Resolved issue that was breaking PurePath when spaces in header names crashed the OneAgent HTTP sensor. (ONE-63647)


  • Searching exported functions for Node.js custom services now also correctly returns async and arrow functions. (ONE-65238)


  • Resolved an issue in OneAgent Go HTTP metrics module which occurred when a panic was thrown in user code. (ONE-64117)


  • Resolved an issue with concurrency handling in the IIS Module Insights sensor that could, under load, lead to OneAgent crashes. (ONE-64006)

All modules

  • Improved Kubernetes detection for OneAgent running in a pod of a Kubernetes cluster on Mesos. (ONE-64943)


  • Fixed an issue that caused injection into Docker containers to fail. (APM-319795)
  • Java code module injection issue resolved for an uncommon type of JVM linkage on Linux. (APM-325097)

Infrastructure Monitoring

  • Vulnerability: Updated urllib library from version 1.26.4 to version 1.26.6 in response to CVE-2021-33503 and BDSA-2021-1688. (ONE-61605)


  • CICS Process Groups fixed to properly use the PLEX name. (ONE-65951)

OneAgent Installer

  • Restored handling of OneAgent installer legacy parameters for deployment via earlier versions of ActiveGate. (APM-326266)
  • SELinux policy now provides rule for Musl libc-compiled oneagentdynamizer, resolving problem with denials and preventing static Go monitoring from working in containerized environments. (APM-327994)

OpenTracing Java

  • Fixed an issue in which the OneAgent Java for z/OS module never tried to connect after certain errors. (ONE-63709)

OS module

  • Reduced redundant log entries from OneAgent OS module. (APM-319598)

Plugin module

  • Couchbase `swap used` metric calculation changed from the sum of all samples from all buckets to the maximum value from those samples. (APM-323433)

OneAgent for mobile resolved issues

2 total resolved issues


  • Mobile Symbolication: Improved special character handling for DSSClient iOS symbol file processing. (ONE-64297)

Mobile Session Replay

  • Session Replay for iOS: Improvements in UITextViews masking feature depending on if it is editable or not. (ONE-63520)

OneAgent for JavaScript resolved issues


  • Fixed a bug in the Visually complete module that causes missing or invalid values for Synthetic tests on pages that are already instrumented with RUM and Visually complete. (ONE-63712)
  • Fixed a bug in the Visually complete module that causes missing or invalid values for Synthetic tests and deferred injected agents on pages with picture elements. (ONE-63921)
  • Fixed a bug when validating `sourceUrls` that caused them not to be sent for certain custom actions. Removed legacy `sourceTitle` from `enterAction` API. (ONE-63952)
  • Fixed a bug that causes browsers to trigger invalid preflights on CORS requests whose URLs start with a whitespace. (ONE-65149)
  • Fixed a problem that was caused by passing a function as data for a jquery request. (ONE-65116)
  • Fixed an issue where if window.clearTimeout would have been called with lodash chain object, jsagent would invoke the methods from the chain and cause side effects. (ONE-65845)


Dynatrace Inc. published this content on 18 October 2021 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 19 October 2021 06:41:01 UTC.

ę Publicnow 2021
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