2026 Q3 in review: custom domains
The change is backwards compatible, so integrations built against the old shape carry on unchanged. This has been the most requested change on the board for a while, and it is now live for every workspace.
How it works
There is nothing to do on your side; the change is already in front of you. Nothing about billing changes, on any plan. The API returns the same fields it always has, with one addition.
- Enable a Linear two-way sync.
- Enable changelog email previews.
- Enable custom fields.
- Enable dark mode.
Limits
The limit is generous enough that most teams will never meet it. Existing setups keep working exactly as they did — nothing needs migrating. The setting lives under Settings, and defaults to the behaviour you already had.
Common pitfalls
The docs page for this was rewritten alongside it. If you were using the workaround, you can drop it — the built-in path covers the same ground.
curl -sS https://api.example.test/v2/posts \
-H "Authorization: Bearer $BULLETIN_API_KEY"
- beta
- breaking