Last weekend OpenTTD migrated its source (Subversion) and bugs (FlySpray) to GitHub (https://github.com/OpenTTD/OpenTTD).
This change was long overdue and we are happy we finally did it.

What changed for you? (biggest changes)

• Issues now on https://github.com/OpenTTD/OpenTTD/issues
• Source now on https://github.com/OpenTTD/OpenTTD
• Patches you have can be posted on
  https://github.com/OpenTTD/OpenTTD/pulls
• Big cleanup of issues and patches
• Rework of how we create binaries; soon(tm) we can easier produce binaries for forks, including Patchpacks.

More details can be found on the forum:
https://www.tt-forums.net/viewtopic.php?f=29&t=83056