MongoDB 1.4 Hot Off the Press

The Mongo team just announced that 1.4 is released and officially production ready.

I have been following the development of this release quite closely as it contains several features I am excited about (and need in Harmony).

• partial matching of array elements $elemMatch (finding embedded comments)
• $ operator for updating arrays (updating embedded comments atomically)
• $addToSet (push user id onto authorizations or memberships array key)
• several production and deployment enhancements
• several sharding and replication enhancements
• performance improvements
• background indexes
• geospatial indexing

These are a just a few of the hot new features. Be sure to check out the Mongo blog post for more. You also may want to read the 1.4 release notes