Bitcoin 0.6.99 screwed up

[JayCoin]

I wanted to compile my own bitcoind, so I cloned it from github and compiled.  Ran it for a few weeks and started to recieve warnings that my wallets transactions may be invalid.  So I downloaded 0.6.2 binary and tried to run it on the same database. I got a database error when I tried to start it.  Had to download the entire blockchain again. That sucks when your trying to run a small mining pool.  I guess I am a git noob, but what is the address to clone the latest stable version? 

[Pieter Wuille]

git clone http://github.com/bitcoin/bitcoin.git; cd bitcoin; git checkout v0.6.2.2