This patch is incremental, so you will be required to have Patch 1.2 installed in order to install 1.3.
v1.3 Patch notes:
/record and /demo enabled in MP.
Server Log File improvements, including:
Team Names on Kill loglines.
Round Win and Loss.
Additional action logging (took flag, destroyed headquarters, planted bomb, etc).
Improved sound initialization for Vista - fixes loss of sound for audio devices set higher than 16 bit 48000 Hz.
Screenshots no longer overwrite each other.
Tweaked autobalance on select game modes.