What does 되감기 버튼 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 되감기 버튼?

Facebook first drew 되감기 버튼 in 2.0, released 2017년 2월 20일.

Meta Platforms, Inc. has shipped 12 versions of 되감기 버튼. Each is dated, so you can see when the design changed.

Facebook 2.2

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 되감기 버튼 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 되감기 버튼?: Facebook first drew 되감기 버튼 in 2.0, released 2017년 2월 20일.
How many times has Facebook redrawn 되감기 버튼?: Meta Platforms, Inc. has shipped 12 versions of 되감기 버튼. Each is dated, so you can see when the design changed.