Legacy settings / Update warning iOS app

[YVRSkyGuy]

Has anyone experienced this or know what is going on? 

Updated to LR iOS 4.3.0 on iPhone and LR Classic 8.3 on laptop a few days ago.  Today I was scrolling through collections on iPhone and came across this on several images:

“Legacy Settings

This photo contains settings that need to be updated before it can be edited.  Note that this may cause visible changes to the photo.

If you like the way it is then you don’t have to do anything.”

I tried updating on one photo and it did change (was able to recover).

This warning/alert is new as of the update.  I use Lightroom Classic and images are synced.  I’m away from my laptop so can‘t verify if there are any problems / changes on that end.

Thanks in advance for help/advice.

[99jon]

Legacy settings normally relate to images edited with an older process version or using a preset containing an older P/V. You will often see a thunderbolt icon under the histogram in the Develop module. The warning is simply to alert that changing the P/V could see a shift. The new Texture slider uses P/V5 however that slider will not be visible e.g. for images edited with P/V2 or P/V3.

[YVRSkyGuy]

Jon, thank you for quick reply.

Going to read up further on this but a few quick question if you are able and wouldn’t mind answering-

Is the process version relating to something specific or LR version as a whole?

A lot of my images were edited using a downloaded preset- why would some show this alert and others not?

Does this mean that potentially images that I have edited will eventually / continuously run into this scenario with future updates and if I want to make any future edits to the image, I would have to update and loose some of my changes and then redo?

[99jon]

The P/V’s incorporate certain algorithms. For example color and luminosity masking in P/V4 and Texture in P/V5.  Very old editing may include the recovery slider. That was replaced in P/V 3, I think, by the highlights, shadows blacks & whites sliders. As you can see things are constantly evolving. If you are happy with the look of older editing there is no need to update. In my experience any shift in tones is slight but it’s best to check on a couple of images e.g. before updating all in the filmstrip.