[dvhh]

There seems to be a lossless specification of webp (that wasn't used in the article)

[lifthrasiir]

For what it's worth, the lossless WebP is an entirely different format from the original lossy WebP, only sharing the same file extension.

[Semaphor]

Wait, so support for WebP doesn’t imply format for both versions? If they don’t, that’s horrible. If they do, they are not entirely different at all.

[Dylan16807]

It's the first one, though it's hopefully hard to find actual software that has that problem unless you're intentionally seeking out versions from around 2012.