The addition in 2.36 to correct bumpmapping for View and Object rotation, made many nice bumpmap setups in older files less nice. Especially apparent when you apply "flipped" mappings in "Map Input" Panel, like map the X to Z and the Z to X. A correction then gives wrong results. Since the "correct bumpmapping" is actually a new option, causing extra rendertime too, I've made it an option now. With the "Map To" Panel being fully used, I've put the new button option (temporally I hope) in the first "Texture" Panel in material context. Will be updated in release log page!