MongoDB released two new versions, 2.0.7 rc1 and 2.2.0 rc0, in July 2012, along with updates to its drivers, including C# Driver 1.5.0, PyMongo 2.2.1, MongoEngine 0.6.18, and PHP Driver 1.2.11. These releases aimed to improve the performance and functionality of MongoDB, particularly for the upcoming 2.2 release.