Add the date to the parenthetical

Warning²Federal courts21st and 22nd editions

A repeal or an amendment is noted parenthetically with its date, because the fact alone does not say which version was in force when.¹

1. 1R. 12.7.2 Repeal; R. 12.7.3 Amendment; R. 12.7 Invalidation, Repeal, Amendment, and Prior History. Tables: R. 12.2.1(b) Statutes no longer in force; R. 12.8 Explanatory Parenthetical Phrases.
2. 2A warning: the form is usually wrong under the rule in note 1, and context can justify it.