Why is it that some make a Shehechiyanu at a Bris and some don't? And an identification of those who do and do not would be appreciated.
Sefardim make a Shecheyanu at a bris. This is also the prevailing custom among Ashkenazim (and everyone else) in Israel.
- Tosafot (Sukkah 46a, ד"ה העושה) says that we don't make a shecheyanu on a bris, since it is not mentioned as one of the berachot for milah in massechet Menachot. Reason - only make Shehecheyanu on a mitzvah that has simcha (joy) associated with it. Ran also agrees, for different reasons.
- Rambam (Berachot 11:9): Make shehecheyanu on a brit milah., even though it is not תדיר and doesn't happen all the time.
- Ruling: Shulchan Aruch (YD 265:7) says that you say shecheyanu at a bris, Rema there says that we don't. The Vilna Gaon rules that you do say it.