What does Simbolo Di Avviso look like on Messenger?

On Messenger it is the design shipped in 1.0, shown above at full size. Older revisions are listed beneath it.

When did Messenger add Simbolo Di Avviso?

Messenger first drew Simbolo Di Avviso in 1.0, released 1 giugno 2016.

Meta Platforms, Inc. has shipped 1 version of Simbolo Di Avviso. Each is dated, so you can see when the design changed.

Messenger

Meta Platforms, Inc. has drawn Simbolo Di Avviso once. Every revision Messenger has shipped is below, newest first.

What does Simbolo Di Avviso look like on Messenger?: On Messenger it is the design shipped in 1.0, shown above at full size. Older revisions are listed beneath it.
When did Messenger add Simbolo Di Avviso?: Messenger first drew Simbolo Di Avviso in 1.0, released 1 giugno 2016.
How many times has Messenger redrawn Simbolo Di Avviso?: Meta Platforms, Inc. has shipped 1 version of Simbolo Di Avviso. Each is dated, so you can see when the design changed.