I upgraded to TortoiseHg 2.1 yesterday.
This item, under the “improvements” list, is huge:
(file history) added context menu for file revision features
Thank you so much for implementing this! I’m using it every day now. Of course, I see that a bug fix release, 2.1.1, was made available this morning, so now I need to upgrade again. Well, the install is pretty painless, so that’s OK.