>Do the packages in https://release.debian.org/transitions/html/auto-libwebp.html >build fine against the new libwebpmux ?
There was a bug the libwep control file. I fixed that and uploaded 0.6.0-2 to experimental just now. Then I did some testing on AMD64 to answer your question. Everything on the list (ffmpeg, freeimage, pillow, vlc) builds fine against libwebp 0.6.0-2. Hoping to proceed with transition before I get distracted.
