- Introduced fully automated mTLS certificate handling, including client‑certificate automation for reverse proxy and an embedded ACME server for internal PKI.
- Added H2C (HTTP/2 cleartext) support, new Caddyfile directives (handle_path, auto_https option, backticks as strings) and reverse‑proxy response interception.
- Implemented numerous bug fixes, performance tweaks, and documentation updates across modules (e.g., client auth placeholders, matcher handling, and ACME EAB options).