1.39.3

Added

• cls and is_base fields to connection info_dict for class and protocol-mode diagnostics

1.39.2

Added

• has_starter, starters_count, socket_fileno, and proxy_pending fields to connection info_dict for richer diagnostics

1.39.1

Changed

• Logging calls across the codebase now use lazy , evaluation instead of % string formatting for deferred argument resolution

1.39.0

Added

• Handshake timeout for the PROXY protocol middleware to close zombie connections that never complete the handshake (default 30s, configurable via PROXY_HANDSHAKE_TIMEOUT)
• Trace logging for PROXY handshake EOF and blocked read events

1.38.11

Added

• Documentation page for the built-in diagnostics server (doc/diag.md)

Fixed

• Guard against None address in DiagConnection._resolve() to prevent TypeError on the /connections diag endpoint

1.38.10

Fixed

• Use byte literals for UTF-8 test strings in DKIM tests for Python 2 compatibility

1.38.9

Fixed

• Fix dkim_body simple canonicalization producing incorrect body hash on Python 3 due to re.sub zero-length match behavior with * quantifier

1.38.8

Changed

• Refactored dkim_fold and dkim_fold_b to use list buffer with join for better performance

1.38.7

Fixed

• DKIM b= field is now placed on its own continuation line to prevent dkim_fold from splitting the tag across lines
• dkim_fold no longer mangles header values when no space is found within the fold length

1.38.6

Changed

• DKIM signing now uses relaxed/simple header canonicalization for better compatibility with strict verifiers (Microsoft, Yahoo)
• DKIM signature b= value is now folded to comply with RFC 5322 line length limits

Fixed

• Headers.pop() now normalizes keys so that string keys correctly match byte keys from rfc822_parse