Password strength meter in User Registration missing on Upgrades to 7.1
1. Install 7.0 PE
2. Upgrade to 7.1 PE. (set user regristration to public in site settings, but this shouldn't matter really)
3. Now, in web.config, switch to hashed passwords (note that enablePasswordRetrieval has to be set to false as well)
4. Try to register a new user. The password strength meter is missing. This is a bug. The password strength meter should be displayed.
Note: The password strength meter is there when, after registering, the user goes to change this password in My Profile. So it seems to me that we have managed to overlook the User Registration screen on Upgraded websites.