Over the past couple years I've upgraded moodle from 2.2->2.3->2.4->2.5->2.6->2.7
We used to provide a value for $CFG->passwordsaltmain = 'zzzzz';
Documentation states '..Important! If you are upgrading a site from 2.4 or below and you are already using a site-wide salt in your configuration file, you need to keep using it to ensure your existing users can still log in. ..'
Does this apply to my current upgrade from m2.7->2.8 seeing as I've been using it moodle since m2.2?
Or can I safely stop using the password salt without affecting exisiting users?
I get the impression its time to retire 'passwordsaltmain ' setting since 2.5 and on (I could have retired it in the last 2-3 upgrades).
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environment