UpdraftPlus Integration 5.2

Security: Hardened stored UpdraftPlus settings handling to safely reject corrupted or unsafe serialized data.
Security: Improved UpdraftPlus.com account credential protection and prevented stored passwords from being displayed.
Fixed: Improved remote operation error handling to prevent unsafe duplicate retries when the operation result is unknown.
Added: Database and runtime groundwork for future MainWP Abilities API backup operations, disabled by default until compatible MainWP Child support is available.
Added: Support for the database schema validation.
Updated: Improve error handling and logging in add-on connection functions.