The MongoDB team is very happy to announce that we have released MongoDB version 1.0.0.
MongoDB 1.0.0 is production ready for single master, master/slave and replica pair environments. While there are many more features that people want and that we are working on, 1.0 is very stable and the code base has been used in production for over 18 months.
As usual, you can get from here: http://www.mongodb.org/display/DOCS/Downloads
Note: No changes have been made between 0.9.10 and 1.0.0. There is a v1.0 branch on github for the 1.0.x releases. See http://www.mongodb.org/display/DOCS/Version+Numbers for more notes about version numbers.