0.20.0 release missing from release tracker

[RalfJung]

I was trying to figure out what changed with the 0.20 release so I know what to update in my crate, but I got stuck: there's no changelog file, and there's no 0.20.0 release in the GH release tab (https://github.com/servo/ipc-channel/releases). Would be nice to have at least one of these :)

[sagudev]

Hm, there was already git tag, but not GitHub release.

I create proper release from tag: https://github.com/servo/ipc-channel/releases/tag/v0.20.0

But we do not have any changelog, except tag comparison: v0.19.0...v0.20.0