Django 1.7 - makemigrations not detecting changes

As the title says, I can't seem to get migrations working. The app was originally under 1.6, so I understand that migrations won't be there initially, and indeed if I run python manage.py migrate I get: Operations to perform: Synchronize unmigrated apps: myapp Apply all migrations: admin, contenttypes, auth, sessions Synchronizing apps without migrations: Creating tables... Installing custom SQL..

[plasma0713]

“When upgrading to 1.7, my models became unmanaged (managed = False) - I had them as True before but seems it got reverted.”