Process versions

The process version is the Camera Raw technology that Lightroom uses to adjust and render photos in the Develop module. Depending on which process version you use, different options and settings are available to you in the Develop module.

Process Version 2012
Images edited for the first time in Lightroom 4 use process version 2012. PV2012 offers new tone controls and new tone-mapping algorithms for high-contrast images. With PV2012, you can adjust Highlights, Shadows, Whites, Blacks, Exposure, and Contrast in the Basic panel. You can also apply local corrections for white balance (Temp and Tint), Highlights, Shadows, Noise, and Moiré.

Process Version 2010
Images edited in Lightroom 3 used PV2010 by default. PV2010 offers improved sharpening and noise-reduction from the previous process version, PV2003.

Process Version 2003
The original processing engine, used by Lightroom 1 and 2.

If the photo you are editing uses PV2010 or PV2003, an exclamation point icon  appears in the lower-right corner of the image preview. You can take advantage of the newer technology by updating the process version.

If you’re not sure which process version your image uses, open the Camera Calibration panel and look at the Process menu.
  1. To update a photo to PV2012, do any of the following in the Develop module:

    • Click the Update To Current Process 2012 button  in the lower-right corner of the photo.

    • Choose Settings > Process > 2012 (Current).

    • In the Camera Calibration panel, choose Process > 2012 (Current).

  2. If the Update Process Version dialog box appears, select any of the following

    Review Changes Via Before/After
    Opens the updated photo in a Before/After view so you can inspect the changes. See View Before and After photos.

    Updates the one selected photo.

    Update All Selected Photos
    Updates all photos currently selected in the Filmstrip, not just the active photo.

    Update All Filmstrip Photos
    Updates all photos in the Filmstrip, not just the one that is selected.

    Important: Updating to Process Version 2012 may incur significant visual changes to your photos. It’s a good idea to update images one at a time until you are familiar with the new processing technology.