Descomprmiendo el zip y comparando....los archivos que han cambiado son estos...
Glancing at the zip, most patch files are only 1- 2 KB which suggests a minor change like version number. Files larger than 2 KB are patches for:
/system/app/FaceLock.apk
/system/app/GoogleCamera.apk and .odex
/system/app/GalleryGoogle.apk
/system/bin/sensors.qcom
/system/framework/telephony-common.odex
/system/framework/ext.jar
/system/framework/framework-res.apk
/system/lib/libpatts_engine_jin.api.so
/system/lib/libwebviewchromium.so
/system/lib/libpac.so
/system/lib/libnfc-nci.so
/system/lib/libnfc_nci_jni.so
/system/lib/libfacelock_jni.so
/system/priv-app/GoogleLoginService.apk and .odex
/system/priv-app/Settings.apk and .odex
A number of other files in here are 3 KB
/vendor/lib/libmmcamera2_isp_modules.so
/vendor/lib/libmmcamera2_stats_modules.so
/vendor/lib/libmmcamera2_imglib_modules.so
and a few others ranging 3-6 KB.
Creo que han puesto franco kernel, apk camera, y moto x, jajaja...HCTMANIA+XDA=GOOGLE DEV