What does Offenes Buch look like on Facebook?

On Facebook it is the design shipped in 16.0, shown above at full size. Older revisions are listed beneath it.

When did Facebook add Offenes Buch?

Facebook first drew Offenes Buch in 1.0, released 31. Januar 2014.

Meta Platforms, Inc. has shipped 13 versions of Offenes Buch. Each is dated, so you can see when the design changed.

Facebook 2.2.1

This is the design Facebook introduced in 2.0, shipped again unchanged. It was not redrawn for this release.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does Offenes Buch look like on Facebook?: On Facebook it is the design shipped in 16.0, shown above at full size. Older revisions are listed beneath it.
When did Facebook add Offenes Buch?: Facebook first drew Offenes Buch in 1.0, released 31. Januar 2014.
How many times has Facebook redrawn Offenes Buch?: Meta Platforms, Inc. has shipped 13 versions of Offenes Buch. Each is dated, so you can see when the design changed.