There are several websites that offer old versions of Messenger IPA for download:
"Download an older version of this app? The current version requires iOS XX or later, but you can download the last compatible version." 2. Finding Raw IPA Files (For Sideloading) Messenger Ipa Old Version
: If you are sharing links, remind your audience to always scan IPA files for malware. There are several websites that offer old versions
Finding a reliable source is critical to avoid malware. Popular platforms that host version histories include: Messenger Ipa Old Version
However, iOS is a walled garden. Unlike Android, you cannot simply download an from a website and tap to install. Apple’s security models (Code Signing and Provisioning Profiles) prevent this.
Recommended “proper” feature set to include/support for an old Messenger .ipa