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TeamCity 2026.1.3 and 2025.11.7 Are Now Available

Dmitrii Korovin

We’re rolling out new maintenance updates for TeamCity On-Premises 2026.1 and 2025.11. Both releases are primarily focused on security, addressing more than 20 security vulnerabilities each (including a critical CVE-2026-63077 vulnerability that allows attackers to bypass authentication checks and execute arbitrary operating system commands with the privileges of the TeamCity server process).

In addition, 2026.1.3 resolves several functional issues, including:

  • Incorrect or inconsistent test results when running test assemblies in parallel;
  • Perforce child stream changes not being detected, causing commit hooks to match no VCS root instances;
  • Failures when uploading artifacts to Amazon S3 due to the getBucketRegion method.

Because these updates contain a significant number of security fixes, we strongly recommend upgrading as soon as possible.

See TeamCity 2026.1.3 Release Notes and TeamCity 2025.11.7 Release Notes for the complete list of resolved issues.

Why update?

Staying up to date with minor releases ensures your TeamCity instance benefits from the following:

  • Performance improvements.
  • Better compatibility with integrations.
  • Faster, more stable builds.
  • Enhanced security for your workflows.

Compatibility

TeamCity 2026.1.3 shares the same data format as all 2026.1.x releases. You can upgrade or downgrade within this series without the need for backup and restoration.

How to upgrade

  1. Use the automatic update feature in your current TeamCity version.
  2. Download the latest version directly from the JetBrains website.
  3. Pull the updated TeamCity Docker image.

Need help?

Thank you for reporting issues and providing feedback! If you have questions or run into any problems, please let us know via the TeamCity Forum or Issue Tracker.

Happy building!

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