(Most older devices and some modern A-only devices)
A subtle but powerful quality-of-life improvement: TWRP 3.6.0 allowed users to manually exclude specific folders from backup (e.g., Android/media or large game OBB files). Previously, a full data backup could exceed 20GB. Now, users could trim the fat without manually editing the twrp configuration file via adb. twrp 3.6.0
If you are looking to flash custom ROMs, create full system backups, or root your device running Android 11 or 12, TWRP 3.6.0 is likely the tool you need. (Most older devices and some modern A-only devices)