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@ -3,6 +3,69 @@ Release Notes
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.. towncrier release notes start
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py-libp2p v0.2.10 (2025-08-12)
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------------------------------
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Breaking Changes
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~~~~~~~~~~~~~~~~
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- identify protocol use now prefix-length messages by default. use use_varint_format param for old raw messages (`#761 <https://github.com/libp2p/py-libp2p/issues/761>`__)
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Bugfixes
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~~~~~~~~
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- Improved type safety in ``get_mux()`` and ``get_protocols()`` by returning properly typed values instead
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of ``Any``. Also updated ``identify.py`` and ``discovery.py`` to handle ``None`` values safely and
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compare protocols correctly. (`#746 <https://github.com/libp2p/py-libp2p/issues/746>`__)
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- fixed malformed PeerId in test_peerinfo (`#757 <https://github.com/libp2p/py-libp2p/issues/757>`__)
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- Fixed incorrect handling of raw protobuf format in identify protocol. The identify example now properly handles both raw and length-prefixed (varint) message formats, provides better error messages, and displays connection status with peer IDs. Replaced mock-based tests with comprehensive real network integration tests for both formats. (`#778 <https://github.com/libp2p/py-libp2p/issues/778>`__)
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- Fixed incorrect handling of raw protobuf format in identify push protocol. The identify push example now properly handles both raw and length-prefixed (varint) message formats, provides better error messages, and displays connection status with peer IDs. Replaced mock-based tests with comprehensive real network integration tests for both formats. (`#784 <https://github.com/libp2p/py-libp2p/issues/784>`__)
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- Recompiled protobufs that were out of date and added a ``make`` rule so that protobufs are always up to date. (`#818 <https://github.com/libp2p/py-libp2p/issues/818>`__)
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Improved Documentation
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~~~~~~~~~~~~~~~~~~~~~~
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- Improve error message under the function decode_uvarint_from_stream in libp2p/utils/varint.py file (`#760 <https://github.com/libp2p/py-libp2p/issues/760>`__)
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- Clarified the requirement for a trailing newline in newsfragments to pass lint checks. (`#775 <https://github.com/libp2p/py-libp2p/issues/775>`__)
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Features
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~~~~~~~~
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- Added ``Bootstrap`` peer discovery module that allows nodes to connect to predefined bootstrap peers for network discovery. (`#711 <https://github.com/libp2p/py-libp2p/issues/711>`__)
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- Add lock for read/write to avoid interleaving receiving messages in mplex_stream.py (`#748 <https://github.com/libp2p/py-libp2p/issues/748>`__)
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- Add logic to clear_peerdata method in peerstore (`#750 <https://github.com/libp2p/py-libp2p/issues/750>`__)
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- Added the ``Certified Addr-Book`` interface supported by ``Envelope`` and ``PeerRecord`` class.
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Integrated the signed-peer-record transfer in the identify/push protocols. (`#753 <https://github.com/libp2p/py-libp2p/issues/753>`__)
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- add length-prefixed support to identify protocol (`#761 <https://github.com/libp2p/py-libp2p/issues/761>`__)
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Internal Changes - for py-libp2p Contributors
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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- remove FIXME comment since it's obsolete and 32-byte prefix support is there but not enabled by default (`#592 <https://github.com/libp2p/py-libp2p/issues/592>`__)
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- Add comprehensive tests for relay_discovery method in circuit_relay_v2 (`#749 <https://github.com/libp2p/py-libp2p/issues/749>`__)
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- [mplex] Add timeout and error handling during stream close (`#752 <https://github.com/libp2p/py-libp2p/issues/752>`__)
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- fixed a typecheck error using cast in peerinfo.py (`#757 <https://github.com/libp2p/py-libp2p/issues/757>`__)
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- Fix raw format reading in identify/push protocol and add comprehensive test coverage for both varint and raw formats (`#761 <https://github.com/libp2p/py-libp2p/issues/761>`__)
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- Pin py-multiaddr dependency to specific git commit db8124e2321f316d3b7d2733c7df11d6ad9c03e6 (`#766 <https://github.com/libp2p/py-libp2p/issues/766>`__)
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- Replace the libp2p.peer.ID cache attributes with functools.cached_property functional decorator. (`#772 <https://github.com/libp2p/py-libp2p/issues/772>`__)
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- Yamux RawConnError Logging Refactor - Improved error handling and debug logging (`#784 <https://github.com/libp2p/py-libp2p/issues/784>`__)
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- The TODO IK patterns in Noise has been deprecated in specs: https://github.com/libp2p/specs/tree/master/noise#handshake-pattern (`#816 <https://github.com/libp2p/py-libp2p/issues/816>`__)
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- Remove the already completed TODO tasks in Peerstore:
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TODO: Set up an async task for periodic peer-store cleanup for expired addresses and records.
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TODO: Make proper use of this function (`#819 <https://github.com/libp2p/py-libp2p/issues/819>`__)
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Performance Improvements
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~~~~~~~~~~~~~~~~~~~~~~~~
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- Added throttling for async topic validators in validate_msg, enforcing a
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concurrency limit to prevent resource exhaustion under heavy load. (`#755 <https://github.com/libp2p/py-libp2p/issues/755>`__)
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py-libp2p v0.2.9 (2025-07-09)
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-----------------------------
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pacrob