Since version 3.6.0 uses outdated SSL/TLS security certificates by modern standards, a hacker on the same public Wi-Fi network could intercept your messages, photos, and login tokens.
: Because Blued relies on server-side data, version 3.6.0 may no longer connect to the current network or might prompt an "Update Required" block immediately upon login. Installation Process : blued 3.6.0 apk
To help you decide, here is a direct comparison: Since version 3