The update to Street Fighter X Mega Man is available now, and along with bug fixes, it adds a new challenger.
You can head here to get your hands on version 2. Here’s the full list of fixes, as well as a trailer for the new update:
Confirmation prompt before exiting (ESC) or resetting (F12) the game
E Tank glitch and various other bugs fixed
Improved controller support (Game defaults to keyboard on launch; make sure controller is plugged in prior to opening the file, then go into Options menu and set keys)
Take screenshots using F9
M Bison buffed a bit
A new challenger!