Improved PicRefiner algorithm

Cleaner old scans: automatically removes dust/scratches; remnants can be quickly "healed" with the brush — less manual retouching.
More natural faces: less "plastic" look; the algorithm auto-adjusts smoothing based on face size.
Sharpening and noise handled more carefully: more fine details with fewer halos and "jaggies"; previews are closer to the final result.
Higher-quality upscaling: small details are plausibly redrawn for tiny/soft JPEGs and frames from messengers.
On "heavy" shots (noise, compression) — fewer blocking/banding artifacts; fabric and skin textures are better preserved.
Smarter auto settings: more accurate scene recognition and targeted processing — fewer misses in batch processing.