==========================Django 1.7.4 release notes==========================*January 27, 2015*Django 1.7.4 fixes several bugs in 1.7.3.Bugfixes========* Fixed a migration crash when unapplying ``contrib.contenttypes``’s or``contrib.auth``’s first migration (:ticket:`24075`).* Made the migration's ``RenameModel`` operation rename ``ManyToManyField``tables (:ticket:`24135`).* Fixed a migration crash on MySQL when migrating from a ``OneToOneField`` to a``ForeignKey`` (:ticket:`24163`).* Prevented the ``static.serve`` view from producing ``ResourceWarning``\s incertain circumstances (security fix regression, :ticket:`24193`).* Fixed schema check for ManyToManyField to look for internal type insteadof checking class instance, so you can write custom m2m-like fields with thesame behavior. (:ticket:`24104`).