- Fixed RTDS runtime guard override removal to correctly restore the default guard value.
- Added opt‑in HTTP/2 header statistics histograms (entry count, map byte size, cookie header length, cookie count) via `envoy.reloadable_features.http2_record_histograms`.
- Introduced `envoy.reloadable_features.http2_max_cookies_size_kb` to limit the size of the reassembled cookie header.