Liquify needs an update to support:
1. Smart Objects
2. Command (control) F for redoes
3. Mesh speed-up
All of these issues are critical for high-emd professional retouchers who work with very (2 Gb plus are common) large layered files. Smart Object support would allow them to return to a move and refine. Command F repeat would allow them to apply the same move to multiple layers as needed, and finally the Save & Load mesh is painfully slow - so slow that many retouchers are forced back to CS4.
Liquify is used a LOT to make the beautiful more perfect - but it needs some attention to bring it up to speed with the power of Puppet Warp.
Thank you!