June 2026 monthly summary for zephyrproject-rtos/zephyr: - Key features delivered: GICv3 Driver: ARMv7-A Non-Secure state support (CONFIG_ARMV7_A_NS) enabling proper affinity routing and security state configuration across ARMv7-A and ARMv8-A. - Major bugs fixed: Fixed ARM context switch MCR instruction syntax by adding the p15 coprocessor prefix for ARMv7-A toolchains; GICv3 ISR wrapper now filters special interrupt IDs 1020-1023 to prevent invalid ISR execution. - Overall impact: Broadened hardware support, improved platform stability and security-state correctness, and reduced risk from misrouted interrupts and assembly incompatibilities. - Technologies/skills demonstrated: ARM architectures (v7/v8), GICv3, kernel interrupt handling, ARM assembly, Kconfig-based feature gating, cross-ISA compatibility, and signed-off commits.

May 2026 monthly summary for Zephyr4Microchip/zephyr: Delivered ARM Cortex-A Core Affinity Identification Enhancement and fixed related MPIDR_TO_CORE logic. This work improves core identification accuracy on Cortex-A architectures, enabling more reliable scheduling, resource isolation, and diagnostics. The changes are implemented via a dedicated MPIDR_AFF_MASK and an updated MPIDR_TO_CORE macro, preserving existing MPIDR_AFFLVL behavior.