1.48.2

Changed

• Add debug logging to CompatLoop.connect_stream() for connection success and error events
• Elevate duplicate protocol pool replacement log in HTTPClient from debug to warning level

1.48.1

Fixed

• Explicitly close stale protocols in HTTPClient before discarding them to avoid leaking connections
• Close previous pooled protocol in HTTPClient when a new protocol is stored under the same key to prevent connection leaks

1.48.0

Added

• last_recv_ts and last_send_ts timestamps in DiagConnection exposed via info_dict() and the DIAG /connections endpoint

Fixed

• Ensure info_dict() returns JSON-safe values on PyPy by converting bytes address components to strings and extracting .value from socket enum attributes

1.47.1

Fixed

• Capture SMTP session data before callback_error fires so that deliverability info (greeting, transcript, TLS details, etc.) is available in context["sessions"] on error

1.47.0

Added

• mx_dedup parameter in SMTPClient.message() to control whether domains sharing the same MX host are grouped into a single connection, defaults to False to avoid 451 4.3.0 rejections from servers that refuse multi-domain transactions

1.46.1

Changed

• Added SSLV3_ALERT_CERTIFICATE_UNKNOWN to SSL_SILENT_REASONS so that certificate unknown alerts are silenced

1.46.0

Added

• Sequential MX session mode for SMTP client (sequential parameter in message()), establishes one connection at a time per MX host to reduce pressure on remote servers that drop concurrent connections from the same source

Changed

• Extract initiate_mx() from on_mx_resolved() in SMTP client for clearer separation of DNS collection and connection initiation phases

1.45.1

Changed

• Added NO_SHARED_CIPHER to SSL_SILENT_REASONS so that no shared cipher errors are silenced

Fixed

• Report MX lookup failures as errors instead of silently dropping recipients, invoke callback_error per failed domain and fire callback when all domains fail
• Normalize MX host dedup key with .rstrip(".").lower() to avoid case/trailing-dot mismatches splitting identical hosts into separate connections

1.45.0

Added

• SMTP session transcript capture gated by SMTP_CAPTURE_TRANSCRIPT environment variable, records the full command/response conversation (excluding DATA payload) with timestamps per entry, capped at 50 entries per session
• SMTP Relay and SMTP Activity Tracking sections in doc/configuration.md

1.44.1

Fixed

• Decode mx_host bytes to string via legacy.str in SMTP session deliverability data