This question has popped up once again.
In both the MDD Annex I, 13.6q and 21 CFR 801.109(e) is the use of the conjunction "OR".
- MDD, Annex I, 13.6 (q) state to use: ...date of issue or the latest revision
- 21 CFR 801.109 (e) states to use: ...the date of the issuance or the date of the latest revision.
Taken literally, this means I can choose either (date of issue or revision) to control my IFU, in both the EU and US.
Years ago, an ISO auditor also read this requirement as both the date of issue AND the latest revision were required. Confounding!