OpenThread Files

What's Changed

🚀 Features

• [routing-manager] introduce kToAdvertise state in OnLinkPrefixManager by @abtink in https://github.com/openthread/openthread/pull/13566
• [dnssd] bound question count in ShouldForwardToUpstream() by @5h4d0wr007 in https://github.com/openthread/openthread/pull/13533
• [mac] make Frame::ParseInfo public and unify frame field access by @abtink in https://github.com/openthread/openthread/pull/13543
• [mac-frame] remove unused PerformAesCcm() declaration from TxFrame by @abtink in https://github.com/openthread/openthread/pull/13577
• [test] check return value of Error-returning calls in test_tcat by @abtink in https://github.com/openthread/openthread/pull/13581
• [mac-frame] remove obsolete Frame friend declaration from ParseInfo by @abtink in https://github.com/openthread/openthread/pull/13582
• [mac] rename frame prepare and tx-done callbacks by @abtink in https://github.com/openthread/openthread/pull/13576
• [sub-mac] encapsulate CSL receiver logic into CslReceiver class by @abtink in https://github.com/openthread/openthread/pull/13583
• [csl] cover OPENTHREAD_CONFIG_MAC_CSL_DEBUG_ENABLE in CI by @abtink in https://github.com/openthread/openthread/pull/13586
• [mac] enhance Mac::Filter implementation to use Array by @abtink in https://github.com/openthread/openthread/pull/13584
• [mac] move CSL period and timeout constants from radio by @abtink in https://github.com/openthread/openthread/pull/13572
• [posix] add a tx-power radio URL parameter by @skirmess in https://github.com/openthread/openthread/pull/13574
• [radio] enhance documentation for otPlatRadioReceiveAt by @abtink in https://github.com/openthread/openthread/pull/13571
• [mac] simplify CSL receiver window calculation by @abtink in https://github.com/openthread/openthread/pull/13591
• [ci] split toranj unit test and build checks into separate jobs by @abtink in https://github.com/openthread/openthread/pull/13597
• [core] remove legacy P2P and wake-up implementations by @abtink in https://github.com/openthread/openthread/pull/13598
• [csl] simplify and enhance parent CSL metric calculation by Mle by @abtink in https://github.com/openthread/openthread/pull/13592
• [crypto] validate aHeader and KeyRef inputs in platform crypto APIs by @thomas-tc2 in https://github.com/openthread/openthread/pull/13303
• [sub-mac] rename CslReceiver::HandleTimer() to ScheduleSampleWindow() by @abtink in https://github.com/openthread/openthread/pull/13615
• [cli] allow a default argument "def" for dns config settings by @thomas-tc2 in https://github.com/openthread/openthread/pull/13266
• [br] do not deprecate old prefix if advertised as preferred by others by @abtink in https://github.com/openthread/openthread/pull/13618
• [api] remove provisional P2P APIs, CLI commands, and configs by @abtink in https://github.com/openthread/openthread/pull/13600
• [toranj] enable OTNS in posix build instead of simulation by @abtink in https://github.com/openthread/openthread/pull/13622
• [br] add a new unit test for stale favored on-link prefix deprecation by @abtink in https://github.com/openthread/openthread/pull/13620
• [dataset] remove legacy wake-up channel from operational dataset by @abtink in https://github.com/openthread/openthread/pull/13614
• [mac] refactor and simplify tx-done handling in Mac by @abtink in https://github.com/openthread/openthread/pull/13634
• [radio] add Radio::IsChannelValid() helper by @abtink in https://github.com/openthread/openthread/pull/13637
• [message] define Message::Checker and common predicate helpers by @abtink in https://github.com/openthread/openthread/pull/13641
• [mesh-forwarder] unify SendMessage() implementation by @abtink in https://github.com/openthread/openthread/pull/13638
• [posix] monitor the infrastructure link on non-Linux platforms by @clara-mostly-human in https://github.com/openthread/openthread/pull/13628
• [posix] add Backbone Router multicast routing for non-Linux platforms by @clara-mostly-human in https://github.com/openthread/openthread/pull/13626
• [mesh-forwarder] simplify EvictMessage() using FindMessageToEvict() by @abtink in https://github.com/openthread/openthread/pull/13651
• [message] add IsIndirectTransmission() helper by @jwhui in https://github.com/openthread/openthread/pull/13659
• [config] update default buffer and child limits when BR is enabled by @abtink in https://github.com/openthread/openthread/pull/13658

🐛 Bug Fixes

• [icmp6] fix use-after-free when the echo reply is fragmented by @MalwareBro in https://github.com/openthread/openthread/pull/13563
• [posix] pass an interface index to IPV6_BOUND_IF by @clara-mostly-human in https://github.com/openthread/openthread/pull/13587
• [mle] validate CSL Channel TLV in HandleChildUpdateRequestOnParent() by @soma0212 in https://github.com/openthread/openthread/pull/13541
• [posix] fix unbounded retry loop in mDNS socket send by @jwhui in https://github.com/openthread/openthread/pull/13602
• [posix] retry netlink sends on EAGAIN and EINTR with poll by @jwhui in https://github.com/openthread/openthread/pull/13603
• [posix] update IPv6 address properties in-place with NLM_F_REPLACE by @jwhui in https://github.com/openthread/openthread/pull/13604
• [mle] fix incorrect error code for malformed CSL Timeout TLV by @thomas-tc2 in https://github.com/openthread/openthread/pull/13610
• [coap] reject option number overflow in Option::Iterator::Advance() by @5h4d0wr007 in https://github.com/openthread/openthread/pull/13579
• [tests] guard BLE TCAT unit platform for FTD/MTD only by @silabs-HarshaK in https://github.com/openthread/openthread/pull/13567
• [posix] correlate netlink ACKs and handle kernel response errors by @jwhui in https://github.com/openthread/openthread/pull/13605
• [posix] fix out of order netlink add/replace and deferred address removal by @thomas-tc2 in https://github.com/openthread/openthread/pull/13630
• [mle] propagate parse error on truncated Address Registration TLV by @zainnadeem786 in https://github.com/openthread/openthread/pull/13646
• [message] prevent eviction during InvokeTxCallback() by @jwhui in https://github.com/openthread/openthread/pull/13650
• [posix] set SO_NOSIGPIPE to 1 on daemon session sockets by @clara-mostly-human in https://github.com/openthread/openthread/pull/13639
• [joiner-router] set KEK after aborting previous entrust transaction by @jwhui in https://github.com/openthread/openthread/pull/13657
• [mdns] reject a null mNextLabels in RecordCache::Matches() by @j0xh-sec in https://github.com/openthread/openthread/pull/13653

New Contributors

• @MalwareBro made their first contribution in https://github.com/openthread/openthread/pull/13563
• @5h4d0wr007 made their first contribution in https://github.com/openthread/openthread/pull/13533
• @clara-mostly-human made their first contribution in https://github.com/openthread/openthread/pull/13587
• @soma0212 made their first contribution in https://github.com/openthread/openthread/pull/13541
• @zainnadeem786 made their first contribution in https://github.com/openthread/openthread/pull/13646
• @j0xh-sec made their first contribution in https://github.com/openthread/openthread/pull/13653

Full Changelog: https://github.com/openthread/openthread/compare/v2026.09.0...v2026.10.0