5774/2014.

A thought1) not Saying Av HaRachamim Shabbos Mivorchim2) End of the Chumash (Masei)3) Rosh Chodesh Menachem- Aharon’s birthday and the meaning behind it.

The Yahrzeit after Moshiach comes. (5773/2013).

Rosh Chodesh Menachem, Aharon’s Yahrtzeit will be distinct even after Moshiach comes, the Jewish Soul is the highest thing.

Rosh Chodesh Menachem Av. Aharon HaKohein's Yahrzeit.

The only Yahrtzeit actually recorded in Chumash is Aharon’s. It is mentioned in Parshas Masei which is always around his Yahrzeit. Short Class (5768). Longer Class (5770).