SE-0045 was not merged into the swift-3.0-branch (see #3600).
Update CHANGELOG.md for SE-0045 (Swift 3.1)
I'm going to leave these to someone with more insider knowledge. @DougGregor or @tkremenek, please review.
This should be Swift 3.0.1, not 3.1.
I thought Swift 3.0.1 will use the same swift-3.0-branch? The changes for SE-0045 are only in the master branch.
Sorry, you are right. Swift 3.0.1 is from swift-3.0-branch and Swift 3.1 will re-branch from master.