Should I update?

Should I update Lightroom Classic?

Lightroom Classic 15.3 · Fixed bug

SDK preset ignored when update AI settings runs immediately

Fixed in Lightroom Classic 15.6, according to Adobe’s release notes. The bug was reported for Lightroom Classic 15.3. It happens on macOS only.

Status
Fixed in 15.6
Severity
Major
Affects
Specific feature
System
macOS only

The fix · Lightroom Classic 15.6

“Race condition between the SDK preset application and the AI settings update.”
Adobe’s release notes

Workaround · if you stay on Lightroom Classic 15.3

Apply the preset inside a progress scope and call updateAISettings only after it completes.

Timeline

  1. Jun 8, 2026Reported on Lightroom Classic 15.3
  2. Sep 29, 2026Fixed in Lightroom Classic 15.6per Adobe’s release notes

The report

1 vote · 5 replies

Reported on macOS by 1 person (from the report and 5 replies).

“P: SDK: Race condition with photo:applyDevelopPreset() and catalog:updateAISettings()”

Read it on the Adobe Community board
Should you update Lightroom Classic today?Today’s verdict for Windows and macOS, and every known issue behind it.

Based on public bug reports on the Adobe Community board. Last changed September 29, 2026. The title and rating are ours; the report is the reporter’s. Not affiliated with Adobe.