In later versions (specifically version 7.0 and beyond), the developers lowered the maximum upload file size in the free version of the plugin. This was a move to encourage users to purchase the premium "Unlimited Extension."

The free version of All-in-One WP Migration comes with a strict file size limitation—typically capped at around 512MB for exports and imports. For users with larger websites, hitting this limit can be a frustrating roadblock.

Despite this, several unofficial methods exist to obtain the plugin files. Each method carries its own risks and should be approached with extreme caution.

For many web developers and site owners, is the "sweet spot"—the last stable version before significant changes were made to the upload limits in the free version.

This change is the primary reason many users continue to search for version 6.77 today. They often believe it provides a "free" way to import large backups without paying for the premium , which costs $69/year and officially removes the import size limit. Other notable features of version 6.77 include: