What's Changed

Transport/Messaging Layer Changes

• Fix memory leak in UnauthenticatedSessionTable. by @bzbarsky-apple in https://github.com/project-chip/connectedhomeip/pull/30025

Crypto Changes

• Initialize CHIP stack before running app tests by @arkq in https://github.com/project-chip/connectedhomeip/pull/29092
• Tests: Use TestCert enum type instead of uint8_t by @ksperling-apple in https://github.com/project-chip/connectedhomeip/pull/30011
• Add a _span string literal operator for creating constexpr CharSpans by @ksperling-apple in https://github.com/project-chip/connectedhomeip/pull/30042

Core Library Changes

• [ICD] Rename attributes to match specification by @mkardous-silabs in https://github.com/project-chip/connectedhomeip/pull/29965
• Add support for CertDecodeFlags to DecodeChipCert by @ksperling-apple in https://github.com/project-chip/connectedhomeip/pull/30013

Controller Changes

• Commissioning time sync: copy parameters to autocommissioner by @cecille in https://github.com/project-chip/connectedhomeip/pull/29908
• Set a timezone and DST offsets during commissioning on Darwin. by @bzbarsky-apple in https://github.com/project-chip/connectedhomeip/pull/29933
• Add new Matter 1.3 features to Network Commissioning XML by @tcarmelveilleux in https://github.com/project-chip/connectedhomeip/pull/29945
• Move AudioOutput cluster up to spec by @andy31415 in https://github.com/project-chip/connectedhomeip/pull/29948
• Make Ballast Configuration Cluster match the spec by @andy31415 in https://github.com/project-chip/connectedhomeip/pull/29957
• Move Pump Configuration and Control to match spec by @andy31415 in https://github.com/project-chip/connectedhomeip/pull/29955
• Remove the startupmode from the rvc clusters by @hicklin in https://github.com/project-chip/connectedhomeip/pull/29949
• [ICD] Add User active mode trigger types and attributes by @mkardous-silabs in https://github.com/project-chip/connectedhomeip/pull/30053
• Update Operational Credential Cluster to match the spec by @andy31415 in https://github.com/project-chip/connectedhomeip/pull/30061
• Make group cluster match the spec by @andy31415 in https://github.com/project-chip/connectedhomeip/pull/30056

App Level Changes

• TC-CC-5.4: Remove read steps by @cecille in https://github.com/project-chip/connectedhomeip/pull/29897
• Mode-derived clusters: rev update (XMLs + TC 1.1) by @plauric in https://github.com/project-chip/connectedhomeip/pull/29964
• Power source server: Use ember function for array indexing by @cecille in https://github.com/project-chip/connectedhomeip/pull/29892
• TC-DGGEN-3.1: Add by @cecille in https://github.com/project-chip/connectedhomeip/pull/30024
• [Groups] Enable GroupTable attribute reporting by @lpbeliveau-silabs in https://github.com/project-chip/connectedhomeip/pull/30055
• [ICD] Update ICDM cluster revision by @mkardous-silabs in https://github.com/project-chip/connectedhomeip/pull/30033

Platform Changes

• Add Swift versions of a few more MTRDevice tests. by @bzbarsky-apple in https://github.com/project-chip/connectedhomeip/pull/29914
• [BouffaloLab] Add factory string data terminator by @shchen-Lab in https://github.com/project-chip/connectedhomeip/pull/29928
• Add better APIs for initializing MTRCluster instances from Swift. by @bzbarsky-apple in https://github.com/project-chip/connectedhomeip/pull/29915
• [Linux] Convert possible Bluez object to GAutoPtr<> by @DamMicSzm in https://github.com/project-chip/connectedhomeip/pull/29987
• Add missing LwIPLog for Bouffalolab platform by @aalexanderr in https://github.com/project-chip/connectedhomeip/pull/29999
• Simplify the NSDate to Matter epoch conversion code. by @bzbarsky-apple in https://github.com/project-chip/connectedhomeip/pull/29963
• Expose some more information on MTRDevice/MTRCluster*. by @bzbarsky-apple in https://github.com/project-chip/connectedhomeip/pull/29769
• [Telink] Use common main & apptask for chef app by @s07641069 in https://github.com/project-chip/connectedhomeip/pull/29995
• [Silabs][WiFi] disable tcp endpoint by @jmartinez-silabs in https://github.com/project-chip/connectedhomeip/pull/30040
• Don't generate Objective-C compatibility headers for Matter.framework Swift APIs. by @bzbarsky-apple in https://github.com/project-chip/connectedhomeip/pull/30028

Example App Changes

• Add a way to trigger lock/unlock in linux lock-app by writing JSON to the FIFO. by @bzbarsky-apple in https://github.com/project-chip/connectedhomeip/pull/29919
• Remove door lock cluster from all-clusters-app by @cecille in https://github.com/project-chip/connectedhomeip/pull/29802
• [Silabs] Disable Extended Discovery in Silabs apps by @selissia in https://github.com/project-chip/connectedhomeip/pull/30059
• chip::to_underlying is missing [air-quality-sensor-manager] by @BurievSardor in https://github.com/project-chip/connectedhomeip/pull/30057

Test Changes

• Cluster conformance checker script by @cecille in https://github.com/project-chip/connectedhomeip/pull/29895
• Revert "Cluster conformance checker script (#29895)" by @cecille in https://github.com/project-chip/connectedhomeip/pull/30037
• Re enable spec parsing by @cecille in https://github.com/project-chip/connectedhomeip/pull/30066

New Contributors

• @BurievSardor made their first contribution in https://github.com/project-chip/connectedhomeip/pull/30057

Full Changelog: https://github.com/project-chip/connectedhomeip/compare/v1.2.0.0...v1.2.0.1