Upgrading from Django 1.3 to 1.5 -

i'd upgrade existing application more recent version of django. in 1.4 changed password hashing algorithm such old passwords no longer match when people try login. there way upgrade not require users reset passwords?

i did same upgrade last month , django passwords still functional. changes made in generic views( generic views class based) , logging in settings.py changed , have put allowed_hosts list. example: allowed_hosts = ['.stackoverflow.com']

particularly, changed urls calls cause using named urls without quotes in url tags , it's no longed supported django. right way this: {% url 'name_of_the_view' arg1 arg2%}

i suggest create environment , try use django 1.5 making small changes.