Two PRs landed in the runup to beta that, sadly, somewhat silently change the semantics of existing methods:
-
The order of arguments to
ptr::copy
and related methods was reversed, making them consistent with the order of IO APIs. -
The
splitn
functionn
argument's meaning changed to the number of returned items, rather than the number of splits.
If you're upgrading to beta, you should audit uses of these APIs.