TL;DR To make messaging on Reddit faster and more reliable, we’re replacing Private Messages (PMs) with Reddit Chat and inbox notifications. This transition is necessary to maintain and improve Reddit’s messaging infrastructure. We aim to make these changes with minimal disruption while improving the user experience.
Timeline: Starting at the end of March, we’ll roll out these changes in phases over the next three months to ensure everything goes smoothly
Just a heads up some programs like Redact (for deleting social media posts including Reddit) on iOS require a subscription if you want to delete chat history vs free for dm. I recommend using shreddit anyway, and I would seriously consider you do so asap.