Leaves Yoshi after passing the goal tape. In case of key-keyhole or start-select exit, Yoshi just disappears.
Take some care when setting up your goal sequences with this patch - if you have weird stuff after the goal, Mario might land back on Yoshi, which doesn't break anything but can look quite silly since he tries to jump off again.
Now doesn't crash when used with AddMusicK, although if you are using AddMusicK you should still open the ASM file and change "!IrisOut = $11" to "!IrisOut = $08" to fix the zoom sound effect.
This version fixes a bug where, under certain circumstances, the player would jump even without Yoshi.
This patch is a really nice alternative to the traditional Counter Break Y patch. The fix in this update appears to work fine, though I'm not exactly certain what would cause the issue in the first place.