What does زر إيقاف 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 زر إيقاف?

Facebook first drew زر إيقاف in 2.0, released 20 فبراير 2017.

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

Facebook 2.0

Facebook shipped a new design for زر إيقاف in 2.0, released 20 فبراير 2017. The previous design is shown beside it.

The first Facebook release we hold for this emoji.

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

What does زر إيقاف 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 زر إيقاف?: Facebook first drew زر إيقاف in 2.0, released 20 فبراير 2017.
How many times has Facebook redrawn زر إيقاف?: Meta Platforms, Inc. has shipped 12 versions of زر إيقاف. Each is dated, so you can see when the design changed.