Apple recently updated macOS and iOS to enable syncing/storing of iMessages in iCloud. I don’t use some of Apple’s more popular apps (like Mail and Calendar) but I use iMessage constantly. Google has, what, seven messaging apps now?
Prior to this latest update, a user could have iMessage syncing problems between devices and the app was taking up a lot of storage on your device. Some people have conversations (with attachments) going back years. Moving all of this to iCloud solves that problem.
I never thought much about the archival feature of iMessage. I sort of knew my conversations were archived but rarely went back to look for something. Following this update I started playing with search in iMessage (I always thought of search as just a way to find someone with whom I had had a conversation). A search for “Land Rover” pulled up all of the conversations where that phrase had been used (left side of screenshot). On the right, the conversations with each. Any message containing the searched for word/phrase is grayed out just a bit.
Like a lot of folks, instant messaging (iMessage for me) has become my preferred method of communication. Voice-to-text works great and I occasionally just send a brief audio message. So having all of my conversations stored, sync’d and searchable will be handy.