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TeamCity 2026.1.2 and 2025.11.6 Are Now Available
Today we’re releasing two bug-fix updates for TeamCity On-Premises 2025.11 and 2026.1 servers. The 2026.1.2 update addresses a little over 10 issues, including the following:
- Stop build command from the server may cancel the step set to be always executed;
- Personal builds fail during agent-side checkout when unshelving certain Perforce changelists;
- Premature AWS credentials expiration;
- Using slashes in AWS S3 bucket prefixes leads to a signature mismatch.
Version 2025.11.6 focuses exclusively on resolving security issues and does not include general bug fixes. To keep your server secure, we strongly recommend installing this update.
See TeamCity 2026.1.2 Release Notes and TeamCity 2025.11.6 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 2026.1.2 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
- Use the automatic update feature in your current TeamCity version.
- Download the latest version directly from the JetBrains website.
- 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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