Update CHANGELOG

CHANGELOG.md

@@ -19,15 +19,19 @@
 - Improve IBM XLC support in `pstdalign.h`.
 - Always include `pstdalign.h` in `flatcc_flatbuffers.h` because some
   C11 compilers fail to provide `stdalign.h`.
+- BREAKING: Size prefixed buffers added requires a minor change
+  to the low-level flatcc builder library with a flag argument to create
+  and start buffer calls. This should not affect user code.
+- Buffer verifier used to mostly, but not always, verify buffer
+  alignment relative to buffer start. With size prefixed buffers it is
+  necessary to verify relative to the allocated buffer, which is also
+  safer and more consistent, but adds requirements to aligned allocation.
+- `monster_test` and `flatc_compat` test now uses aligned alloc.
 - Add `aligned_alloc` and `aligned_free` to `pstdalign.h`.
 - `flatcc_builder_finalize_aligned_buffer` now requires `aligned_free`
   to be fully portable and no longer use unaligned malloc as fallback,
   but still works with `free` on most platforms (not Windows).
 
-- BREAKING: Size prefixed buffers added requires a minor change
-  to the low-level flatcc builder library with a flag argument to create
-  and start buffer calls. This should not affect user code.
-
 
 Changes related to big endian support which do not affect little endian
 platforms with little endian wire format.