chore(main): release 3.0.0

[efcasado]

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3.0.0 (2026-08-04)

⚠ BREAKING CHANGES

• chunking: chunked messages are not wire-compatible (#177)
• producer: route partition keys with a Pulsar hashing scheme (#176)
• options: downcase enum option atoms (#171)
• make Pulsar.Message independent of batching and chunking (#170)
• consumer: pass the resolved topic and subscription to callback (#169)
• make Client, Consumer, and Producer the public API (#164)

Features

• consumer: add handle_invalid_message/2 (31cfddf)
• consumer: pass the resolved topic and subscription to callback (#169) (59444de)

Bug Fixes

• application: stop dropping unknown client options (e43d308)
• broker: accept general socket option lists (1b60c63)
• broker: broker crashes on unexpected info messages (#161) (5989995)
• broker: ignore events from stale sockets (73434b4)
• broker: stale parse buffer desyncs the stream on reconnect (d5552a1)
• chunking: chunked messages are not wire-compatible (#177) (83f52eb)
• client: accept :infinity as a connection timeout (9e48526)
• consumer: deliver unverifiable messages instead of dropping the connection (d4b9229)
• consumer: give invalid messages their payload (99d2284)
• consumer: stop :name naming both the group and the consumers (136ccc4)
• consumer: supervise the dead letter producer under its consumer (#172) (7395f53)
• producer: advertise the full sequence id range of a batch (1c0cabd)
• producer: deduplicated sends reported as stored messages (664926d)
• producer: route partition keys with a Pulsar hashing scheme (#176) (eb3eb13)
• producer: silent data loss after producer restart (a68bb69)
• protocol: accept message frames without a checksum (86f4825)
• protocol: bound the frame size read off the wire (7c7d7fd)
• protocol: crash on unsupported inbound command types (6333aba)
• protocol: decode/1 raises and kills the connection (e51f49c)
• protocol: reject BaseCommands missing their command (ff0c5f9)
• protocol: verify the CRC32C checksum on inbound message frames (c90ce8c)

Performance Improvements

• protocol: copy a frame once rather than once per packet (1b484f1)

Dependencies

• bump apachepulsar/pulsar from 4.2.3 to 4.2.4 (#174) (b97b864)
• bump jdx/mise-action from 4 to 4.2.3 (#175) (bfa974f)
• bump jdx/mise-action from 4.2.3 to 4.2.4 (#180) (0969a29)
• bump styler from 1.11.0 to 1.12.2 (#167) (8357854)

Code Refactoring

• client: validate options against a schema (bb4349e)
• consumer: validate options against a schema (389fae3)
• make Client, Consumer, and Producer the public API (#164) (b353b19)
• make Pulsar.Message independent of batching and chunking (#170) (6cdd75a)
• options: downcase enum option atoms (#171) (0d2f381)
• producer: validate options against a schema (f10d3f3)
• protocol: fold encode_message into encode (f2ba4ff)
• reader: validate options against a schema (09e99b4)

Tests

• add connection reset tests (3b848ae)
• add unit tests for the binary protocol (c7deb74)

---

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