Micro,
Nope - but close. Not sure if that will work or actually, might be a good experiment. What ArVee alluded to, and what worked for me, is to MOVE the old v2.25 to a folder somewhere where you have it labeled to remember what it is. Do the same for the 2.22 core, in a different folder, so you CAN rename it the exact same as what the original 2.25 core was named, without overwriting it.
Then you can move them in and out as needed, depending on the project it grabs.
I admittedly haven't has time to watch closely, and have just left the 2.22 core in there. All I have watched for so far is to make sure it didn't auto download a 2.25 core, which has not happened yet.
"Friends don't let friends dial-up"