October 2025 Monthly Summary for zephyrproject-rtos/openthread: OTNS integration with OpenThread RCP completed, enabling seamless OTBR-to-OTNS workflows and end-to-end validation. Key technical work includes adding mOtns attribute, expanding the RCP build with src/core/utils/otns.cpp, and implementing selective compilation so only necessary functions are included in RCP mode. IPv6-dependent features were guarded to avoid build/runtime issues, and OTNS-related events are now emitted from the radio layer to support OTNS workflows. This work, anchored by commit 6d93c7fc9646514267d6c04bd93c99995f7b6cac, reduces integration friction, accelerates simulation-based testing, and improves build reliability for OTNS-enabled RCP paths.