Lol, 4 hours, dunno I don't have it, just bought HL2 checked for update's, nothing.
Last Update :
[-] December 11, 2006 - Current Release
Increased ES57, Compact 228 and Dual Elites damage by 25%
Lowered allowed number of dropped weapons in a level to prevent gun spamming
Updated foliage quality in cs_militia
Yes they never update it. I mean something new. They should make an update for new maps, or some kind of thing that you can install and delete skins really easy. Through CSS. But they wont because they are to god damn lazy.
It would be nice if c:ss alowed easier chaging of skins and additions/changes to the program, n its probable tht these will be put in2 the game in the future, but i doubt they will ad more default maps as so many ppl these days are capable of making maps and adding them to css all the time, that the c:ss programmers are probaly more intersted in fixing any bugs on the exsisting maps and improving overall gameplay.