Remove or rename the 4.0.0rc tags from github

[jeroen]

Somewhere a while ago it was decided to revert the bump to 4.0.0 and stick with 3.x for now. However this repository has two tagged releases v4.0.0-rc2 and v4.0.0-rc1.

As a result, many uses and automated systems assume this tag is the newest release. For example: https://tracker.debian.org/pkg/protobuf says HIGH: A new upstream version is available: 4.0.0~rc2

[haberman]

I just deleted the v4.0.0-rc* tags.

[rayman1104]

Is there an alternative tag for v4.0.0-rc2?
Just deleting release is a bit rude. Our development process was blocked until we found an alternative version of protobuf that's also compatible with all other libs.

[jeroen]

@rayman1104 as explained above, v4.0.0-rc2 was renamed to v3.14.0-rc2 which eventually was released as v3.14.0.