If you are on older hardware (Intel Mac or older PC) or hate Adobe’s new subscription-only model for newer features, stick with 9.1. It represents the last era where Lightroom felt like a professional tool rather than a bloated cloud service.

Then came .

| Metric | LR 9.0 | LR 9.1 | | :--- | :--- | :--- | | Scrolling in Library (1000 RAWs) | 12 fps | 28 fps | | Export (100 24MP RAWs to JPEG) | 2m 15s | 1m 58s | | Mask loading (Brush adjustment) | 1.2s | 0.6s | The good: It is stable. It doesn’t require a Creative Cloud subscription if you bought a perpetual license (pre-2020). Many wedding photographers froze their updates at 9.1 because later versions (10.0 and 11.0) changed the import dialog and removed the old export location picker.