TeamCity 2026.1.1 Is Now Available

Today we’re rolling out the first bug-fix for TeamCity On-Premises 2026.1 servers. This update addresses over 20 issues and performance issues, including:

• Build agent alternate IP addresses ignored by TeamCity;
• Damaged Rake plugin;
• Failing uploads to S3 buckets;
• .NET builds with “Exists” agent requirements cannot find a compatible build agent to run.

See TeamCity 2026.1.1 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 2026.1.1 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!