Here's a list of some of the changes on the coding side of things:
fixed corpses changing to ghille suit model when a player disconnects
fixed connecting player not being placed under "Spectators" on the scoreboard
new burst fire system (hold the trigger to fire the whole burst)
added hi_round_timer entity (to change the amount of time left in the round)
if you switch weapons while priming a grenade, you drop it
decreased weapon switch delay slightly
increased prone mouse speed a bit
new walk and strafe animations
added walk_backwards and crouch_walk_backwards animations
added admin scoreboard icon (server reads steam ids from admins.txt and gives matching players an icon on the scoreboard)
added next_rof and prev_rof commands (cycles through the fire modes without looping from auto -> safe, for example)
the ROF the player had set at the end of the previous round is now remembered when the next round starts
a player who has been kicked by a vote too many times gets banned (max vote kicks and ban duration set by server)
added sv_maxvotekicks and sv_votebanlength to control the above point
added bullet penetration
All server log messages have been updated to use Steam IDs instead of WON IDs
fixed team selection vgui not coming up automatically after map change
disabled cl_bob, cl_bobcycle, and cl_bobup
added variable hi_roundbreak; allows server to set the amount of time between rounds (default 3 seconds)
added the back/forward arrows to the team selection menu. back = close, forward = auto team
added a toggle crouch command. Bind a key to "duck_t", or use the controls menu.
many other small fixes and tweaks