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Release Notes for MongoDB 1.4

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  • Upgrading
  • Core Server Enhancements
  • Replication and Sharding
  • Deployment and Production
  • Query Language Improvements
  • Geo

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:

  • better handling for restarting slaves offline for a while
  • fast new slaves from snapshots (--fastsync)
  • configurable slave delay (--slavedelay)
  • replication handles clock skew on master
  • $inc replication fixes
  • sharding alpha 3 - notably 2-phase commit on config servers
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