Release 2.12.0

Author: cuviper

RELEASES.md

@@ -1,5 +1,13 @@
 # Releases
 
+## 2.12.0 (2025-10-17)
+
+- **MSRV**: Rust 1.82.0 or later is now required.
+- Updated the `hashbrown` dependency to 0.16 alone.
+- Error types now implement `core::error::Error`.
+- Added `pop_if` methods to `IndexMap` and `IndexSet`, similar to the
+  method for `Vec` added in Rust 1.86.
+
 ## 2.11.4 (2025-09-18)
 
 - Updated the `hashbrown` dependency to a range allowing 0.15 or 0.16.