chore(main): release 2.15.4

[openfeaturebot]

🤖 I have created a release beep boop

2.15.4 (2026-01-06)

🐛 Bug Fixes

• deadlock if /change is called during /restart (#321) (4583da2)

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This PR was generated with Release Please. See documentation.

[gemini-code-assist]

Summary of Changes

Hello @openfeaturebot, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request is an automated release for version 2.15.4 of the flagd-testbed project. Its primary purpose is to update all relevant version indicators across the repository and to formally include a bug fix that resolves a deadlock condition. This ensures that the project's versioning is consistent and that the latest critical fix is deployed.

Highlights

• Version Release: This pull request automates the release of version 2.15.4 for the flagd-testbed project.
• Bug Fix Included: The release incorporates a critical bug fix addressing a deadlock issue that occurred when the /change endpoint was called during a /restart operation (issue fix: deadlock if /change is called during /restart #321).
• Automated Updates: Key project files, including the .release-please-manifest.json, CHANGELOG.md, docker-compose.yaml, and version.txt, have been automatically updated to reflect the new version.

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[gemini-code-assist]

Code Review

This pull request is an automated release for version 2.15.4, generated by Release Please. The changes consist of version bumps in .release-please-manifest.json, docker-compose.yaml, and version.txt, along with an updated CHANGELOG.md. The changes are consistent and appear correct for the release.

[openfeaturebot]

🤖 Created releases:

• v2.15.4

🌻