Sunset of extensions.coder.com (legacy Coder extension gallery)

[jdomeracki-coder]

Sunset of extensions.coder.com (legacy Coder extension gallery)

Summary

The legacy Coder extension gallery at https://extensions.coder.com is being fully sunset. The DNS record will be removed on April 1st, 2026.

Background

code-server switched to Open-VSX as the default extension marketplace in v4.0.1 (2022). The legacy Coder gallery was deprecated at that time, and the FAQ noted the plan to fully migrate to Open-VSX. New extension submissions to the legacy gallery were also stopped at that point.

What this means for users

• No action needed for the vast majority of users — Open-VSX has been the default since v4.0.1.
• Users who explicitly configured $EXTENSIONS_GALLERY to point at extensions.coder.com must update their configuration to use Open-VSX or another compatible gallery.
• The EXTENSIONS_GALLERY env var and the custom marketplace mechanism remain fully supported — only the Coder-hosted endpoint is going away.

Timeline

• 2022 — Open-VSX set as default; legacy gallery deprecated
• 2026-03-31 — Final sunset notice
• 2026-04-01 — DNS record for extensions.coder.com removed

References

• Switch to Open-VSX as the default: https://github.com/coder/code-server/releases/tag/v4.0.1
• Legacy custom marketplace docs: https://github.com/coder/code-server/blob/7fe23daf009e5234eaa54a1ea5ff26df384c47ac/docs/FAQ.md#how-do-i-use-my-own-extensions-marketplace