This is a minor new release of South, and the third bugfix release for the 0.7 series.
South now also checks if you’re converting a field to/from NULL and makes you add defaults as appropriate.
South’s circular-dependency-checking engine has had some fixes to stop false positives.
Thanks to Shai Berger, the MSSQL backend has had some much-needed improvements.
Fixes to generated migration names, table name escaping, WSGI compatability, MySQL foreign key checks, and 2.4 compatability.