v20.4.0

🎉 New features

• [eas-cli] New command observe:session for inspecting events by session ID. (#3868 by @douglowder)

🐛 Bug fixes

• [eas-cli] Fix eas update --channel failing with "Channel has no branches associated with it" when the channel was auto-created by a build. A branch with the channel's name is now created and linked, matching the behavior for a channel that doesn't exist yet. (#3891 by @gwdp)