This update covers 1431 commits, including 134 new upstream commits I've never filed a bug on before. (They're the top 134.):

1431 commits elided, as they are too long for a bugzilla comment.

I've submitted a try run for this commit: https://treeherder.mozilla.org/jobs?repo=try&revision=42fece0fce3145994d66a3140c1149f8bef68363

All the jobs in the try run succeeded. Like literally all of them, there weren't
even any intermittents. That is pretty surprising to me, so maybe you should double
check to make sure I didn't misinterpret things and that the correct tests ran...

Anyway, I've done all I can, so I'm passing to you to review and land the patch.
When reviewing, please note that this is external code, which needs a full and
careful inspection - not a rubberstamp.

(In reply to Update Bot from comment #4)

All the jobs in the try run succeeded. Like literally all of them, there weren't
even any intermittents. That is pretty surprising to me, so maybe you should double
check to make sure I didn't misinterpret things and that the correct tests ran...

Anyway, I've done all I can, so I'm passing to you to review and land the patch.
When reviewing, please note that this is external code, which needs a full and
careful inspection - not a rubberstamp.

I will investigate why Updatebot said this, when this is clearly not the case.

Also, I will try to make the first comment about upstream commits better; as it is not really applicable here.

This bug is being closed because a newer revision of the library is available.
This bug will be marked as a duplicate of it (because although this bug is older, it is superseded by the newer one).

I filed https://github.com/mozilla-services/updatebot/issues/300 for the failure issue and https://github.com/mozilla-services/updatebot/issues/297 for the initial comment (but that's lower priority)