Compatibility Notes
-------------------
+- [The layout of `repr(Rust)` types now groups m\*2^n-sized fields with
+ equivalently aligned ones.](https://github.com/rust-lang/rust/pull/102750/)
+ This is intended to be an optimization, but it is also known to increase type
+ sizes in a few cases for the placement of enum tags. As a reminder, the layout
+ of `repr(Rust)` types is an implementation detail, subject to change.
+- [0.5 now rounds to 0 when formatted to 0 decimal places.](https://github.com/rust-lang/rust/pull/102935/)
+ This makes it consistent with the rest of floating point formatting that
+ rounds ties toward even digits.
- [Chains of `&&` and `||` will now drop temporaries from their sub-expressions in
evaluation order, left-to-right.](https://github.com/rust-lang/rust/pull/103293/)
Previously, it was "twisted" such that the _first_ expression dropped its