pt3.141x (the pre-release branch of pt3.141) has the changes to support oe12.
I also added back the "4" hotkey.
Because it is an "x" release you need to explicitly ask for it when doing an update. i.e.
There also may be multiple releases in an "x" branch so the "as of" timestamp is worth noting.
Lastly, I also (sneakily) patched the pt3.14 release a week or so ago. If your "as of" date on that is in May rather than March then you should also have the oe12 changes (but not the "4" hotkey).