See the full index of this page for a complete list of changes included in 1.4.
We’re pleased to announce the 1.4 release of MongoDB. 1.4 is a drop-in replacement for 1.2. To upgrade you just need to shutdown mongod, then restart with the new binaries. (Users upgrading from release 1.0 should review the 1.2 release notes, in particular the instructions for upgrading the DB format.)
Release 1.4 includes the following improvements over release 1.2: