yes and alwase will be current.
Problem is many servers are adjusting there files for there clients and there os settings/sql databases.
therfore if they arent patched exactly as you are you cant access there servers. id say that 1 out of 10 servers on that list that are UP are cleint friendly, the rest are supported by the server op and whatever files he uses. if you really wanna try a server, find the website of the host and then download the files they support.
www.wintersroar.com is a good example of a 5.3 server in action
also wr happens to be the best maintained server imho.
the WR website will tell you what you need to do to get eq running for there custom game.