migrate 1.4 release notes

source/release-notes/1.4-changes.txt

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+:orphan:
+
+======================
+Changes in MongoDB 1.4
+======================
+
+.. toctree::
+
+   1.4

source/release-notes/1.4.txt

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+=============================
+Release Notes for MongoDB 1.4
+=============================
+
+.. default-domain:: mongodb
+
+.. contents:: See the :doc:`full index of this page <1.4-changes>` for
+              a complete list of changes included in 1.4.
+   :backlinks: none
+   :local:
+   :depth: 1
+
+Upgrading
+---------
+
+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
+:program:`mongod`, then restart with the new binaries. (Users upgrading
+from release 1.0 should review the :doc:`1.2 release notes </release-notes/1.2>`,
+in particular the instructions for upgrading the DB format.)
+
+Release 1.4 includes the following improvements over release 1.2:
+
+Core Server Enhancements
+------------------------
+
+- :doc:`concurrency </faq/concurrency>` improvements
+
+- indexing memory improvements
+
+- :ref:`background index creation <index-creation-background>`
+
+- better detection of regular expressions so the index can be used in
+  more cases
+
+Replication and Sharding
+------------------------
+
+- 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
+
+- :doc:`$inc </reference/operator/inc>` replication fixes
+
+- sharding alpha 3 - notably 2-phase commit on config servers
+
+Deployment and Production
+-------------------------
+
+- :ref:`configure "slow threshold" for profiling <database-profiling-levels>`
+
+- ability to do :doc:`fsync + lock </reference/command/fsync>` for backing up raw files
+
+- option for separate directory per db (``--directoryperdb``)
+
+- ``http://localhost:28017/_status`` to get serverStatus via http
+
+- REST interface is off by default for security (``--rest`` to enable)
+
+- can rotate logs with a db command, :doc:`logRotate </reference/command/logRotate>`
+
+- enhancements to :doc:`serverStatus </reference/server-status/>`
+  command (db.serverStatus()) - counters and :ref:`replication lag
+  <replica-set-replication-lag>` stats
+
+- new :doc:`mongostat </reference/mongostat>` tool
+
+Query Language Improvements
+---------------------------
+
+- :doc:`$all </reference/operator/all>` with regex
+
+- :doc:`$not </reference/operator/not>`
+
+- partial matching of array elements :doc:`$elemMatch </reference/projection/elemMatch>`
+
+- $ operator for updating arrays
+
+- :doc:`$addToSet </reference/operator/addToSet>`
+
+- :doc:`$unset </reference/operator/unset>`
+
+- :doc:`$pull </reference/operator/pull>` supports object matching
+
+- :doc:`$set </reference/operator/set>` with array indices
+
+Geo
+---
+
+- :doc:`2d geospatial search </core/geospatial-indexes>`
+
+- geo :doc:`$center </reference/operator/center>` and :doc:`$box
+  </reference/operator/box>` searches