add changelog entries for 1.92 release

src/changelog.rst

@@ -19,6 +19,30 @@ with the change that has been applied due to it.
    just the language changes that had an impact to the FLS. See the `release
    notes`_ for a full list of changes.
 
+Language changes in Rust 1.92.0
+-------------------------------
+
+- `Document MaybeUninit representation and validity <https://github.com/rust-lang/rust/pull/140463>`_
+
+  - This is not a language change
+
+- `Allow "&raw [mut | const]" for union field in safe code <https://github.com/rust-lang/rust/pull/141469>`_
+
+  - This lifted restriction was not specified in the FLS
+
+- `Prefer item bounds of associated types over where-bounds for auto-traits and Sized <https://github.com/rust-lang/rust/pull/144064>`_
+- `Do not materialize X in "[X; 0]" when X is unsizing a const <https://github.com/rust-lang/rust/pull/145277>`_
+- `Support combining #[track_caller] and #[no_mangle] (requires every declaration specifying #[track_caller] as well) <https://github.com/rust-lang/rust/pull/145724>`_
+- `Make never type lints never_type_fallback_flowing_into_unsafe and dependency_on_unit_never_type_fallback deny-by-default <https://github.com/rust-lang/rust/pull/146167>`_
+
+  - No change: lints are not part of the FLS
+
+- `Allow specifying multiple bounds for same associated item, except in trait objects <https://github.com/rust-lang/rust/pull/146593>`_
+- `Slightly strengthen higher-ranked region handling in coherence <https://github.com/rust-lang/rust/pull/146725>`_
+- `The unused_must_use lint no longer warns on "Result<(), Uninhabited>" (for instance, "Result<(), !>"), or "ControlFlow<Uninhabited, ()>" <https://github.com/rust-lang/rust/pull/147382>`_. This avoids having to check for an error that can never happen.
+
+  - No change: lints are not part of the FLS
+
 Language changes in Rust 1.91.1
 -------------------------------