What Does The Latest Lightroom 4.2 Release Candidate Mean For You

Adobe announced a release candidate for Lightroom 4.2 a couple days ago and I wanted to write a quick article on what this means to you as a Lightroom 4.1 user.

First, What Is A Release Candiate?
A release candidate is basically a beta version of the software, that has the potential to be a final version. Everything at this stage has been designed and tested thoroughly and unless there’s a significant bug that’s found/changed, the release candidate will eventually become the next version of the software.

When it comes to Lightroom, Tom Hogarty (the Lightroom Product Manager) says this about it on his blog:
“The ‘release candidate’ label indicates that this update is well tested but would benefit from additional community testing before it is distributed automatically to all of our customers. The final release of Lightroom 4.2 may have additional corrections or camera support.”

Does Lightroom 4.2 Have Any New Features?
4.2 has some bug fixes (you can read the full list over on the Lightroom Product Manager, Tom Hogarty’s, blog and new camera support for about 10 new cameras (again, the full list is over on Tom’s blog). For me personally, I wasn’t affected by any of the bugs (at least that I’ve noticed). And I don’t own any of the new cameras. However, it looks like the Nikon D800 is now supported in tethered capture, so that’ll be cool.

Am I Going To Download It?
Yes, I’ll be downloading it soon. I’m teaching at Photoshop World next week in Las Vegas so I’m a little hesitant to change anything before then. Not just Lightroom, but I’m usually hesitant to changing anything on my computer right before a big conference. But who knows… I’m not very good at waiting so I may tempt fate before then 🙂

Question: Have you (or will you) upgraded to the Lightroom 4.2 release candidate yet? Any thoughts so far?

Thanks and have a good one!



  1. fazphoto 25 September, 2012 at 09:01 Reply

    I am hoping that support for tethered canon 5d MK III and a speed kick is with the final LR4.2, or I will dump LR and use Aperture.

  2. Photog88 8 September, 2012 at 19:45 Reply

    I’ve download it and other than sucking CPU like I have 100 gigs of ram and loading photos slooooooower than cold molasses, it’s doing well so far. Also very slow to save exported images – 4.2 is much slower than viewing images in FastStone Image Viewer. Have a question – are there Lightroom codecs so that FastStone can view saved Lightroom tiffs? FastStone views everything including the CHDK raw format, excepting the tiffs created by Lightroom and Microsoft ICE.

  3. alfromchgo 7 September, 2012 at 23:08 Reply

    Downloaded, still slower than any of version 3s. And if Adobe tech read this please bring back the filllight slider for us amateurs.

  4. Matt Kolberg 7 September, 2012 at 12:39 Reply

    I see in the documentation that there was an audio problem. I installed 4.2RC and my audio problem went away…for the first video I played, but the second video played, but without sound. It’s very frustrating. Any ideas on a fix/workaround? I saw one use start the application in Windows 7 as administrator. This worked, but only once. I’m at a loss.

  5. Archer66 5 September, 2012 at 08:08 Reply

    I have installed 4.2RC.

    Switching from Library to Developer is definitely faster, no more “Loading” message ( Sony A850 RAW 36mb files )

    Import seems much slower though.

  6. Jay Weenig 3 September, 2012 at 20:15 Reply

    I didn’t have any of the bugs but couldn’t get my D800 tethered. Loaded 4.2 and still can’t get the tether to work.

  7. TJ May 1 September, 2012 at 14:07 Reply

    Downloaded it this morning in hopes of it recognizing my new Rebel T4I while tethered as discribed in the release notes as “new cameras supported”…still not recognized.

  8. Steve 31 August, 2012 at 15:30 Reply

    The big disappointment between LR3 and LR
    is the speed decrease. Adobe has not acknowledged
    this so addressing it appears to me not in the cards.

    Perhaps this “fix” will be the reason to upgrade from LR4
    to LR5 !!

  9. thomas 31 August, 2012 at 10:35 Reply

    i downloaded and installed as i was desperately waiting for Sony RX100 support.
    this baby is my new “always with me-camera”…

    i also did not notice any change other than that ACR can now read my sony files.


  10. Jeremy 31 August, 2012 at 00:59 Reply

    I downloaded and installed it, hoping that tethered shooting to a Canon 5D Mark III would FINALLY be supported… NOPE.

    • Didit Mehta Pariadi 5 September, 2012 at 12:50 Reply

      Thank you Jeremy. I am surprised that LR 4.1 can’t tethered Canon 5D mk III, and even more surprised to find out that LR 4.2 RC still have the same problem. I will have class tomorrow and I have to use my Canon 7D for tethering purpose… Sad…

  11. Chris 30 August, 2012 at 14:33 Reply

    Downloaded it and using it. I hadn’t come across any of the 4.1 bugs that were “fixed” in this release, so cannot comment, but did have (well-documented on the Web) performance issues with 4.1 (i.e. runs like a snail). Sadly they haven’t been fixed in 4.2.

    Might be a good excuse to buy that 40mm lens, though!

  12. Josh Wardell 30 August, 2012 at 14:30 Reply

    I just wish they would address the speed issues introduced with LR4. Don’t get me wrong, I love the enhancements, but LR3 runs so much quicker with many operations, especially switching between photos in Develop. My LR3 even has a much larger catalog.
    I’m surprised they aren’t including Retina display support though!

  13. Chris Hills 30 August, 2012 at 13:19 Reply

    I will NOT be downloading it. On the principal that I never use beta or *.0 SW at all if I can help it. Also I usually wait a week or two before using any of the major up dates when they are released. I can’t afford to loose images or lots of edits.

    However unless there is a lot of shouting in the week after it is released I will be downloading the released 4.2

  14. Brad Balfour 30 August, 2012 at 11:39 Reply

    I’m like you. I haven’t been affected by any of the bugs that it fixes. And I’m still using my Canon T2i, so no need for the newest camera support. So I’ll wait until it finalizes.

  15. Eric Fialkowski 30 August, 2012 at 08:44 Reply

    I downloaded it because it supports corrections for the new Canon 40mm lens which is becoming one of my favorite walk around lenses. Although in all honesty, it doesn’t appear to need much correcting.

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