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Added notes about `select_for_update` to the 1.4 release notes.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16059 bcc190cf-cafb-0310-a4f2-bffc1f526a37
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commit c92e0e47657f8c53673523428011f34ba15be7bb 1 parent 8f0f73c
@jacobian jacobian authored
Showing with 12 additions and 1 deletion.
  1. +12 −1 docs/releases/1.4.txt
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13 docs/releases/1.4.txt
@@ -13,10 +13,21 @@ which are detailed in :doc:`our deprecation plan </internals/deprecation>`.
.. _new features: `What's new in Django 1.4`_
.. _backwards incompatible changes: backwards-incompatible-changes-1.4_
-
What's new in Django 1.4
========================
+``SELECT FOR UPDATE`` support
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Django 1.4 now includes a :meth:`QuerySet.select_for_update()
+<django.db.models.query.QuerySet.select_for_update>` method which generates a
+``SELECT ... FOR UPDATE`` SQL query. This will lock rows until the end of the
+transaction, meaning that other transactions cannot modify or delete rows
+matched by a ``FOR UPDATE`` query.
+
+For more details, see the documentation for
+:meth:`~django.db.models.query.QuerySet.select_for_update`.
+
.. _backwards-incompatible-changes-1.4:
Backwards incompatible changes in 1.4
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