This is a log of changes to user rights performed locally by users ("manual" changes) or by system rules ("automatic" changes). You may enter either or both of:

• Performer – the name of the user who changed the rights (just their name)
• Target – the name of the user whose rights were changed (written with the prefix User:)

The list of user groups and their associated permissions is on Special:ListGroupRights.

The log does not show:

• Changes of rights by stewards (such as checkuser and oversight user rights) – see the meta global rights log (Enter usernames like this: User:Doe@enwiki)
• Local rights changes made prior to 24 December 2004 – see Wikipedia:Bureaucrat log.

• 19:56, 7 December 2021 C.Fred talk contribs changed group membership for C.Fred from pending changes reviewer and administrator to pending changes reviewer, administrator and autopatrolled (per RFC)
• 19:03, 16 February 2021 C.Fred talk contribs changed group membership for C.Fred from administrator to administrator and pending changes reviewer (yep, need the priv to review)
• 19:03, 16 February 2021 C.Fred talk contribs changed group membership for C.Fred from pending changes reviewer and administrator to administrator (cross-check)
• 19:02, 16 February 2021 C.Fred talk contribs changed group membership for C.Fred from administrator to administrator and pending changes reviewer (testing to see if change in pending changes system requires this flag)
• 04:38, 20 September 2010 C.Fred talk contribs changed group membership for TDI19 from rollbacker to rollbacker and pending changes reviewer (requested on my talk page, active on an article still under pending changes trial, already rollbacker)