You can go to the GOS App Store, choose the Messaging app, click 3 dots at the top and choose the Alpha release channel to get it now
replyThey mentioned you can use the Alpha from their app installer.
replyGood to know! For others: You open their app store, go into messaging, hamburger menu, select release channel, and choose alpha.
replyIt's in the alpha channel. Go in to the 'App Store' app, go to Messaging, 3 dot menu and change release channel.
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