Add breaking changes warning

Merge pull request SteamRE#1064 from SteamRE/yaakov/rel-2.4.0

Update release notes and URL for v2.4.0 final

Merge pull request SteamRE#1058 from SteamRE/yaakov/2.4.0-beta.1

Release notes for 2.4.0-Beta.1 release

Update release notes for 2.4.1-Alpha.3

Specify nuget gallery url

Release 2.3.0

Merge branch 'rel/2.3.0b2'

Merge pull request SteamRE#819 from SteamRE/release-2.3.0

 publish release 2.3.0

Update release notes and version information for 2.2.0 release