chore: Document some of the recent changes.

Author: emilio

RELEASES.md

@@ -1,3 +1,13 @@
+# Unreleased
+
+ * Make const_new the default, and bump MSRV to 1.85. `const_new` feature is still available but does nothing.
+
+# Version 0.2.19 (2026-07-26)
+
+ * add may_dangle Drop impl under unstable feature
+ * Use safe `Layout::from_size_align` (instead of unsafe `from_size_align_unchecked`), panicking with a capacity overflow if it fails.
+ * Fix `shallow_size_of` for inline arrays.
+
 # Versions 0.2.17 and 0.2.18 (2026-04-29)
 * Fix compiling some feature combinations in no_std mode