When they announce what will be the last opinion day of the session they say it will be the last: Instead of saying something like “We will be releasing opinions next Wednesday” they say “We will be announcing opinions next Wednesday, and that will be the last opinion day of the term”. I don’t know if they did this with the June 29 opinion day.

It has occasionally gone into early July, not often.

Edit: On Wed June 29 they announced that June 30 2022 would be the last opinion day of the 2021 term. So done at the end of June.

When they announce what will be the last opinion day of the session they say it will be the last: Instead of saying something like “We will be releasing opinions next Wednesday” they say “We will be announcing opinions next Wednesday, and that will be the last opinion day of the term”. I don’t know if they did this with the June 29 opinion day.

It has occasionally gone into early July, not often.