Rebase and manually update relnote order

Author: Mark-Simulacrum

RELEASES.md

@@ -5,31 +5,26 @@ Version 1.85.0 (2025-02-20)
 
 Language
 --------
-- [Support var-args for more calling conventions](https://github.com/rust-lang/rust/pull/116161) 
-  This stabilizes usage of `...` variable args in extern declarations for `system`, `aapcs`, `sysv64`, `win64`, and `efiapi` calling conventions. `C` and `cdecl` were previously stable.
-- [Add `unpredictable_function_pointer_comparisons` lint to warn against function pointer comparisons](https://github.com/rust-lang/rust/pull/118833)
-- [Lint on combining `#[no_mangle]` and `#[export_name]` attributes.](https://github.com/rust-lang/rust/pull/131558)
-- [Stabilize `#[diagnostic::do_not_recommend]`](https://github.com/rust-lang/rust/pull/132056)
-- [Stabilize async closures](https://github.com/rust-lang/rust/pull/132706)
-  See [RFC 3668](https://rust-lang.github.io/rfcs/3668-async-closures.html) for more details.
 - [The 2024 Edition is now stable.](https://github.com/rust-lang/rust/pull/133349)
   See [the edition guide](https://doc.rust-lang.org/nightly/edition-guide/rust-2024/index.html) for more details.
-
+- [Stabilize async closures](https://github.com/rust-lang/rust/pull/132706)
+  See [RFC 3668](https://rust-lang.github.io/rfcs/3668-async-closures.html) for more details.
+- [Stabilize `#[diagnostic::do_not_recommend]`](https://github.com/rust-lang/rust/pull/132056)
+- [Add `unpredictable_function_pointer_comparisons` lint to warn against function pointer comparisons](https://github.com/rust-lang/rust/pull/118833)
+- [Lint on combining `#[no_mangle]` and `#[export_name]` attributes.](https://github.com/rust-lang/rust/pull/131558)
 
 <a id="1.85.0-Compiler"></a>
 
 Compiler
 --------
 - [The unstable flag `-Zpolymorphize` has been removed](https://github.com/rust-lang/rust/pull/133883), see https://github.com/rust-lang/compiler-team/issues/810 for some background.
 
-
 <a id="1.85.0-Platform-Support"></a>
 
 Platform Support
 ----------------
 - [Promote `powerpc64le-unknown-linux-musl` to tier 2 with host tools](https://github.com/rust-lang/rust/pull/133801)
 
-
 Refer to Rust's [platform support page][platform-support-doc]
 for more information on Rust's tiered platform support.
 
@@ -38,11 +33,10 @@ for more information on Rust's tiered platform support.
 Libraries
 ---------
 - [Panics in the standard library now have a leading `library/` in their path](https://github.com/rust-lang/rust/pull/132390)
-- [`std::env::home_dir()` no longer respects `$HOME` on Windows](https://github.com/rust-lang/rust/pull/132515)
+- [`std::env::home_dir()` on Windows now ignores the non-standard `$HOME` environment variable](https://github.com/rust-lang/rust/pull/132515)
    It will be un-deprecated in a subsequent release.
 - [Add `AsyncFn*` to the prelude in all editions.](https://github.com/rust-lang/rust/pull/132611)
 
-
 <a id="1.85.0-Stabilized-APIs"></a>
 
 Stabilized APIs
@@ -59,7 +53,6 @@ Stabilized APIs
 - [`FromIterator<(A, ...)>` for tuples with arity 1 through 12](https://doc.rust-lang.org/stable/std/iter/trait.FromIterator.html#impl-FromIterator%3C(EA,)%3E-for-(A,))
 - [`std::task::Waker::noop`](https://doc.rust-lang.org/stable/std/task/struct.Waker.html#method.noop)
 
-
 These APIs are now stable in const contexts:
 
 - [`mem::size_of_val`](https://doc.rust-lang.org/stable/std/mem/fn.size_of_val.html)
@@ -86,7 +79,6 @@ These APIs are now stable in const contexts:
 - [`<float>::copysign`](https://doc.rust-lang.org/stable/std/primitive.f32.html#method.copysign)
 - [`MaybeUninit::write`](https://doc.rust-lang.org/stable/std/mem/union.MaybeUninit.html#method.write)
 
-
 <a id="1.85.0-Cargo"></a>
 
 Cargo
@@ -101,7 +93,6 @@ Rustdoc
 -----
 - [Doc comment on impl blocks shows the first line, even when the impl block is collapsed](https://github.com/rust-lang/rust/pull/132155)
 
-
 <a id="1.85.0-Compatibility-Notes"></a>
 
 Compatibility Notes
@@ -112,16 +103,17 @@ Compatibility Notes
 [^check-cfg]: https://doc.rust-lang.org/nightly/rustc/check-cfg.html
 - [Disable potentially incorrect type inference if there are trivial and non-trivial where-clauses](https://github.com/rust-lang/rust/pull/132325)
 - `std::env::home_dir()` has been deprecated for years, because it can give surprising results in some Windows configurations if the `HOME` environment variable is set (which is not the normal configuration on Windows). We had previously avoided changing its behavior, out of concern for compatibility with code depending on this non-standard configuration. Given how long this function has been deprecated, we're now fixing its behavior as a bugfix. A subsequent release will remove the deprecation for this function.
-- [More closely match clang behavior for definition of `core::ffi::c_char`](https://github.com/rust-lang/rust/pull/132975)
-  On many targets, this has changed the definition of `c_char`, resulting in potential compilation issues.
-  The new definition is more likely to be accurate for the corresponding C definition on the relevant target.
+- [Make `core::ffi::c_char` signedness more closely match that of the platform-default `char`](https://github.com/rust-lang/rust/pull/132975)
+  This changed `c_char` from an `i8` to `u8` or vice versa on many Tier 2 and 3
+  targets (mostly Arm and RISC-V embedded targets). The new definition may
+  result in compilation failures but fixes compatibility issues with C.
   The `libc` crate matches this change as of its 0.2.169 release.
+- [When compiling a nested `macro_rules` macro from an external crate, the content of the inner `macro_rules` is now built with the edition of the external crate, not the local crate.](https://github.com/rust-lang/rust/pull/133274)
 - [Increase `sparcv9-sun-solaris` and `x86_64-pc-solaris` Solaris baseline to 11.4.](https://github.com/rust-lang/rust/pull/133293)
 - [Show `abi_unsupported_vector_types` lint in future breakage reports](https://github.com/rust-lang/rust/pull/133374)
 - [Error if multiple super-trait instantiations of `dyn Trait` need associated types to be specified but only one is provided](https://github.com/rust-lang/rust/pull/133392)
 - [Change `powerpc64-ibm-aix` default `codemodel` to large](https://github.com/rust-lang/rust/pull/133811)
 
-
 <a id="1.85.0-Internal-Changes"></a>
 
 Internal Changes
@@ -133,12 +125,6 @@ tools.
 
 - [Build `x86_64-unknown-linux-gnu` with LTO for C/C++ code (e.g., `jemalloc`)](https://github.com/rust-lang/rust/pull/134690)
 
-
-
-Other
------
-
-
 Version 1.84.1 (2025-01-30)
 ==========================