What does Persevering Face 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 Persevering Face?

Facebook first drew Persevering Face in 1.0, released January 31, 2014.

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

Facebook 15.0

This is the design Facebook introduced in 4.0, 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 Persevering Face 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 Persevering Face?: Facebook first drew Persevering Face in 1.0, released January 31, 2014.
How many times has Facebook redrawn Persevering Face?: Meta Platforms, Inc. has shipped 13 versions of Persevering Face. Each is dated, so you can see when the design changed.