After instaling LR4.1 my photos turned a pinkish hue, on uninstaling they returned to their original colour. They were taken with a Canon 600D 18-55mm IS lens. I am a hobbyist photographer and wonder if I can ignore this update without compromising future updates too. I don't like what it has done to my photos. The update refers to chromatic aberation correction, which it appears my photos don't need.
Great, so that means that you've accidentally changed your default settings somewhere along the line.
Now go to Develop menu > Set Default Settings and press the Restore Adobe Default Settings button. That will fix the pink defaults.
Then switch to the Grid view and select all of the pink pictures, and press the Reset button in the Quick Develop panel or in the right-click menu.
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