How long will the jetpack 6.1/6.2 and 6.2.2 be supported?

We are wondering if there is some information available how long the jetpack 6.x versions are still supported by the new SDK’s.

upgrading jetson computers in the field is difficult so we would like to have all information available to plan when to update the systems to the new jetpack 7.x versions or sticking with the 6.x version.

and is there some speed improvement between jetpack 6.x and jetpack 7.x on jetson Orin platforms?