OpenThread Files

What's Changed

🚀 Features

• [radio] introduce dedicated RadioTime types to clarify clock domain by @abtink in https://github.com/openthread/openthread/pull/13268
• [mac-frame] remove Multipurpose frame format support by @abtink in https://github.com/openthread/openthread/pull/13281
• [bit-utils] add DetermineMinBitSizeFor helper method by @abtink in https://github.com/openthread/openthread/pull/13287
• [mac] rename TxFrame::Info to TxFrame::BuildInfo by @abtink in https://github.com/openthread/openthread/pull/13289
• [crypto] align LinkRaw MAC key exportability with KeyManager by @gytxxsy in https://github.com/openthread/openthread/pull/13277
• [crypto] add platform AES-CCM* one-shot hook by @suveshpratapa in https://github.com/openthread/openthread/pull/13190
• [dns] fix otDnsEncodeTxtData() parameter type mismatch by @Siflorite in https://github.com/openthread/openthread/pull/13288
• [bit-utils] un-inline CountBitsInMask helper method by @abtink in https://github.com/openthread/openthread/pull/13286
• [mac] add dynamic HeaderIe building with StartIe() and EndIe() by @abtink in https://github.com/openthread/openthread/pull/13291
• [radio] define OT_CONFIG_RADIO_TIME_ENABLE derived configuration by @abtink in https://github.com/openthread/openthread/pull/13280
• [mac-frame] simplify FCF flag changes using UpdateFcfFlag by @abtink in https://github.com/openthread/openthread/pull/13282
• [lowpan] check datagramSize in Decompress and DecompressUdpHeader by @jwhui in https://github.com/openthread/openthread/pull/13276
• [bit-utils] add MaskForBitSize() helper function by @abtink in https://github.com/openthread/openthread/pull/13295
• [bootstrap] pipe wget into tar instead of using temporary files by @enkiusz in https://github.com/openthread/openthread/pull/12833
• [aes-ccm] only allow nonces in the length range [7, 13] in AesCcm by @thomas-tc2 in https://github.com/openthread/openthread/pull/13265
• [tests] remove border router MATN tests by @jwhui in https://github.com/openthread/openthread/pull/13306
• [build] fix LLVM compilation issues by @silabs-PiyushY in https://github.com/openthread/openthread/pull/13058
• github-actions: bump github/codeql-action/analyze from 4.35.4 to 4.36.3 by @jwhui in https://github.com/openthread/openthread/pull/13313
• [radio] introduce SyncedRadioLocalTime helper class by @abtink in https://github.com/openthread/openthread/pull/13278
• [ip6] adhere to style guide for var declarations in HandleDatagram() by @abtink in https://github.com/openthread/openthread/pull/13320
• [docs] rename GEMINI.md to AGENTS.md by @jwhui in https://github.com/openthread/openthread/pull/13316
• [posix] fix mDNS local loopback discovery and socket options by @jwhui in https://github.com/openthread/openthread/pull/13321
• [posix] drain TREL UDP packets per mainloop iteration by @jwhui in https://github.com/openthread/openthread/pull/13324
• [mac-frame] unconditionally include crypto/aes_ccm.hpp by @abtink in https://github.com/openthread/openthread/pull/13327
• [mac] simplify retry success histogram tracking by @abtink in https://github.com/openthread/openthread/pull/13319
• [posix] fix -Wstringop-truncation warning in IsLoopbackInterface by @jwhui in https://github.com/openthread/openthread/pull/13330
• [mac] implement LTV parsing and encoding by @abtink in https://github.com/openthread/openthread/pull/13297
• [lowpan] simplify and refactor compressor and decompressor by @abtink in https://github.com/openthread/openthread/pull/13300
• [mac-frame] remove empty RxFrame::ProcessReceiveAesCcm() under RCP by @abtink in https://github.com/openthread/openthread/pull/13326
• [ip6] drop forwarded packets with foreign link-local source address by @abtink in https://github.com/openthread/openthread/pull/13317
• [mac] simplify and refactor HandleTransmitDone() by @abtink in https://github.com/openthread/openthread/pull/13336
• [parse-cmdline] make ParseAsHexString() inline by @jwhui in https://github.com/openthread/openthread/pull/13342
• [mac] add static_cast to bitwise NOT in mac_ltvs.cpp by @jwhui in https://github.com/openthread/openthread/pull/13340
• [mac] move and rename BeaconHeader and BeaconPayload by @abtink in https://github.com/openthread/openthread/pull/13335
• [github-actions] skip coverage uploads for fork pull requests by @malano77 in https://github.com/openthread/openthread/pull/13285
• [radio] introduce namespace Radio for radio types and constants by @abtink in https://github.com/openthread/openthread/pull/13333
• [mac] reorder private methods in SubMac by @abtink in https://github.com/openthread/openthread/pull/13344
• [mac] move private constants inside Mac class by @abtink in https://github.com/openthread/openthread/pull/13345
• [mac-frame] clean up KeyMaterial usage in TxFrame by @abtink in https://github.com/openthread/openthread/pull/13346
• [mac-ltv] add Ltv::OptimizeListOrder() helper method by @abtink in https://github.com/openthread/openthread/pull/13309
• [script] fix exit status and help command in script/test by @jwhui in https://github.com/openthread/openthread/pull/13347
• [mac] rename KeyId to KeyIndex (in Mac::Frame) by @abtink in https://github.com/openthread/openthread/pull/13341
• [ci] fix coverage upload in otns workflow by @jwhui in https://github.com/openthread/openthread/pull/13348
• [sub-mac] use TimerMicroIn for CSL and WED timers by @abtink in https://github.com/openthread/openthread/pull/13350
• [radio] move multi-radio link types to namespace Radio by @abtink in https://github.com/openthread/openthread/pull/13334
• [mac] introduce and use PcapCallback type alias by @abtink in https://github.com/openthread/openthread/pull/13355
• [ble][tcat] improve BLE link handling after TLS session closes; support BLE disconnection in TCAT simulation by @EskoDijk in https://github.com/openthread/openthread/pull/13240
• [radio] introduce C++ types for radio capabilities by @abtink in https://github.com/openthread/openthread/pull/13353
• [mac] add and use DetermineKeyIndexFor() helper by @abtink in https://github.com/openthread/openthread/pull/13352
• [mle] delay child update tx to restore rx-on children by @abtink in https://github.com/openthread/openthread/pull/12840
• [radio] introduce Radio::Frame and base classes for frame properties by @abtink in https://github.com/openthread/openthread/pull/13354
• [mac] introduce and use KeyTrio class by @abtink in https://github.com/openthread/openthread/pull/13359
• [radio] introduce secured Enh-ACK properties to RxFrameProperties by @abtink in https://github.com/openthread/openthread/pull/13361
• [sub-mac] unify capability check logic in ShouldHandle(Capability) by @abtink in https://github.com/openthread/openthread/pull/13360
• [sub-mac] select transmit key material by key index from KeyTrio by @abtink in https://github.com/openthread/openthread/pull/13362
• [mac] centralize MAC Key ID Mode 1 determination in Mac by @abtink in https://github.com/openthread/openthread/pull/13363
• github-actions: bump github/codeql-action/init from 4.36.3 to 4.37.1 by @jwhui in https://github.com/openthread/openthread/pull/13368
• [mac] unify AES-CCM processing in TxFrame::PerformAesCcm() by @abtink in https://github.com/openthread/openthread/pull/13372
• [instance] guard key-ref offset setup for MTD/FTD by @gytxxsy in https://github.com/openthread/openthread/pull/13376
• [radio] move PHY header constants to Radio namespace by @abtink in https://github.com/openthread/openthread/pull/13371
• [mac] standardize Mode 2 security constants naming and usage by @abtink in https://github.com/openthread/openthread/pull/13374
• [sub-mac] ensure AES key is set before restoring transmit security on retx by @abtink in https://github.com/openthread/openthread/pull/13378
• [csl] rename and hide bus latency update methods by @abtink in https://github.com/openthread/openthread/pull/13385
• [posix] retry DHCPv6-PD client socket bind on failure by @jwhui in https://github.com/openthread/openthread/pull/13377
• [script] isolate test environment using unprivileged unshare namespace by @bukepo in https://github.com/openthread/openthread/pull/13364
• [mac-frame] ignore IE present bit on legacy frame versions by @abtink in https://github.com/openthread/openthread/pull/13386
• [mac] hide internal callback handlers in Mac and LinkRaw by @abtink in https://github.com/openthread/openthread/pull/13382
• [mac] simplify scan validation logic using CanScan() by @abtink in https://github.com/openthread/openthread/pull/13383
• [radio] move CalculateBusTransferTime() to Radio class by @abtink in https://github.com/openthread/openthread/pull/13384
• [csl-tx-scheduler] update and polish documentation by @abtink in https://github.com/openthread/openthread/pull/13387
• [csl-tx-scheduler] manage CSL tx delay timer in scheduler by @abtink in https://github.com/openthread/openthread/pull/13391
• [mac] check frame version for sequence number suppression by @jwhui in https://github.com/openthread/openthread/pull/13388
• [common] add Clang lifetime safety macros and annotate Heap::String by @jwhui in https://github.com/openthread/openthread/pull/13381
• [mac-frame] enforce supported frame versions by @abtink in https://github.com/openthread/openthread/pull/13389
• [common] add Clang lifetime safety annotations to Data by @jwhui in https://github.com/openthread/openthread/pull/13398
• [csl-tx-scheduler] simplify HandleSentFrame() implementation by @abtink in https://github.com/openthread/openthread/pull/13390
• [radio] clarify Key ID Mode 1 usage in otPlatRadioSetMacKey() by @abtink in https://github.com/openthread/openthread/pull/13380
• [mac] simplify operation selection in PerformNextOperation() by @abtink in https://github.com/openthread/openthread/pull/13392
• [common] add Clang lifetime safety annotations to FrameData by @jwhui in https://github.com/openthread/openthread/pull/13399
• [common] add Clang lifetime safety annotations to FrameBuilder by @jwhui in https://github.com/openthread/openthread/pull/13401
• [common] add Clang lifetime safety annotations to smart pointers by @jwhui in https://github.com/openthread/openthread/pull/13420
• [common] add Clang lifetime safety annotations to Array by @jwhui in https://github.com/openthread/openthread/pull/13421
• [csl-tx-scheduler] update CSL scheduling on MAC enable status change by @abtink in https://github.com/openthread/openthread/pull/13400
• [sub-mac] simplify VerifyOrExit() control-flow usage in SubMac by @abtink in https://github.com/openthread/openthread/pull/13430
• [mac-frame] use lookup table in CalculateMicSize() by @abtink in https://github.com/openthread/openthread/pull/13406
• github-actions: bump github/codeql-action/init from 4.37.1 to 4.37.3 by @jwhui in https://github.com/openthread/openthread/pull/13434
• [dependabot] remove invalid if property from github-actions update by @jwhui in https://github.com/openthread/openthread/pull/13402
• [csl-tx-scheduler] simplify CSL window determination and scheduling by @abtink in https://github.com/openthread/openthread/pull/13403
• [common] add Clang lifetime safety annotations to Message by @jwhui in https://github.com/openthread/openthread/pull/13422
• [sub-mac] simplify SubMac::Sleep() implementation by @abtink in https://github.com/openthread/openthread/pull/13429
• [github-actions] resolve zizmor security findings across workflows by @jwhui in https://github.com/openthread/openthread/pull/13438
• [mac-frame] rename kFcfSeqSuppression & fix IsSequencePresent return type by @abtink in https://github.com/openthread/openthread/pull/13405
• [spinel] vendor spinel frame max size by @DejinChen in https://github.com/openthread/openthread/pull/13396
• [sub-mac] do not claim kCapRxOnWhenIdle in SubMac::GetCaps() by @abtink in https://github.com/openthread/openthread/pull/13427
• [posix] use nullptr instead of NULL in client by @jwhui in https://github.com/openthread/openthread/pull/13440
• [mle] trigger Child Update Request for restoring children upon RX by @abtink in https://github.com/openthread/openthread/pull/12857
• [ci] remove arm-gcc-4 build check by @jwhui in https://github.com/openthread/openthread/pull/13449
• [mac-frame] simplify address field processing in Mac::Frame by @abtink in https://github.com/openthread/openthread/pull/13439
• [sub-mac] remove !OPENTHREAD_MTD check from CSL transmitter code by @abtink in https://github.com/openthread/openthread/pull/13445
• [posix] add --version to ot-ctl, ot-daemon and ot-cli by @LorbusChris in https://github.com/openthread/openthread/pull/13424
• [radio] add Radio::DetermineClockDrift() for clock drift calculation by @abtink in https://github.com/openthread/openthread/pull/13453
• [mac-frame] use lookup table in Frame::CalculateKeySourceSize() by @abtink in https://github.com/openthread/openthread/pull/13455
• [sub-mac] fix transmit and receive timing capability reporting by @abtink in https://github.com/openthread/openthread/pull/13454

🐛 Bug Fixes

• [spinel] validate DNSSD host address count by @huynhtrungcip in https://github.com/openthread/openthread/pull/13283
• [mac] fix missing beacon header in transmitted beacon frames by @abtink in https://github.com/openthread/openthread/pull/13331
• [mesh-forwarder] fix priority queue iteration in EvictMessage() by @jwhui in https://github.com/openthread/openthread/pull/13397
• [history] parse TLV headers safely in client answer processing by @aussinfosec in https://github.com/openthread/openthread/pull/13410
• [posix] fix ot-ctl crash on unrecognized long options by @LorbusChris in https://github.com/openthread/openthread/pull/13423
• [netdata] derive context prefix length from the outer Prefix TLV by @aussinfosec in https://github.com/openthread/openthread/pull/13407
• [trel] limit direct peer sockaddr updates to mode 0/1 secured frames by @aussinfosec in https://github.com/openthread/openthread/pull/13414
• [meshcop] apply default delay when generating pending from active set by @aussinfosec in https://github.com/openthread/openthread/pull/13415
• [coap] mark request acknowledged before dispatching observe responses by @aussinfosec in https://github.com/openthread/openthread/pull/13408
• [ci] improve PR number resolution for size-report workflow by @bukepo in https://github.com/openthread/openthread/pull/13394
• [ip6] resolve extension headers before forward-path protocol checks by @aussinfosec in https://github.com/openthread/openthread/pull/13412
• [posix] validate UDP message length against payload buffer by @carlos-al in https://github.com/openthread/openthread/pull/13428
• [mac] reject unsecured Enh-Ack carrying IEs in response to a secured transmission by @aussinfosec in https://github.com/openthread/openthread/pull/13417

New Contributors

• @Siflorite made their first contribution in https://github.com/openthread/openthread/pull/13288
• @enkiusz made their first contribution in https://github.com/openthread/openthread/pull/12833
• @silabs-PiyushY made their first contribution in https://github.com/openthread/openthread/pull/13058
• @huynhtrungcip made their first contribution in https://github.com/openthread/openthread/pull/13283
• @malano77 made their first contribution in https://github.com/openthread/openthread/pull/13285
• @aussinfosec made their first contribution in https://github.com/openthread/openthread/pull/13410
• @LorbusChris made their first contribution in https://github.com/openthread/openthread/pull/13423
• @DejinChen made their first contribution in https://github.com/openthread/openthread/pull/13396
• @carlos-al made their first contribution in https://github.com/openthread/openthread/pull/13428

Full Changelog: https://github.com/openthread/openthread/compare/v2026.07.0...v2026.08.0