Please release a new version with this update so that it can be imported from other projects that use rules_go, such as rules_webtesting. Thanks.

There are some major changes pending, that may be affected. How do you find which cases need fixing and which don't?
We can't easily tag a new version right now, there are lots of breaking changes we don't want to inflict on people in a trickle, so we are not going to tag a new version until after we can get toolchain support submitted and we are sure it is stable, which is waiting for Bazel 0.5.4 to ship. If it's really important then we need to branch from the current release tag and cherry pick.

I need to use these changes before a release candidate for Bazel 0.6 is created, which will happen shortly after Bazel 0.5.4 is out. If it's not possible to release rules_go immediately after Bazel 0.5.4 is out it would be nice to have a cherry-pick release, in that case f083e0f should be included there too. Both changes are compatible with old versions (must work with 0.5 at least) so it shouldn't be a problem. I don't think the proto library has incompatible breaking changes.