What does Rainbow Flag look like on Google?

On Google it is the design shipped in 17.0, shown above at full size. Older revisions are listed beneath it.

When did Google add Rainbow Flag?

Google first drew Rainbow Flag in Android 7.1, released October 4, 2016.

Google LLC has shipped 16 versions of Rainbow Flag. Each is dated, so you can see when the design changed.

Google Android 7.1

Google shipped a new design for Rainbow Flag in Android 7.1, released October 4, 2016. The previous design is shown beside it.

The first Google release we hold for this emoji.

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

What does Rainbow Flag look like on Google?: On Google it is the design shipped in 17.0, shown above at full size. Older revisions are listed beneath it.
When did Google add Rainbow Flag?: Google first drew Rainbow Flag in Android 7.1, released October 4, 2016.
How many times has Google redrawn Rainbow Flag?: Google LLC has shipped 16 versions of Rainbow Flag. Each is dated, so you can see when the design changed.