In Camera RAW, I never realised how often I used the shortcut of double-clicking on the move tool (hand icon) to zoom to fit screen until it was removed with this latest version (Camera RAW 188.8.131.523). Please can this really useful shortcut be re-instated as soon as possible?
With the preferences set so NOT to mimic LR, it's also necessary to zoom to the percentage you desire using the drop down menu, lower left near filmstrip, then select "Global Zoom Setting". I can set that and then the zoom using key command recalls and uses that when clicking.
Thanks Andrew, I still can't get it to behave as it used to which was the same as in Photoshop - i.e. double click on hand icon to fit to screen. Photoshop still behaves like this but I can't find a setting that will make ACR behave in this way. However, I can probably live with clicking on the picture to alternate between 100% zoom and zooming to fit to screen, which is how it now seems to be behaving. It would be so much nicer, however, if it was consistent between Photoshop and ACR as it used to be.