AT&T started pushing Jelly Bean (4.1.2) to its variant of the Xperia T (the TL) earlier this month, but Rogers apparently wasn't far behind. The Canadian carrier just made the update available to its Xperia T, which should bring all the same goodies that the AT&T and International versions already have. Namely:
The update appears to be rolling out OTA-style, so you should be able to head into Settings > About phone and grab it now.