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Seven essential checks to run before a major WordPress upgrade

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WordPress major version upgrades carry significantly higher compatibility risks than minor releases, including API deprecations, raised PHP requirements, and core block changes. Developers and site administrators are advised to verify PHP version compatibility across plugins and themes before upgrading, as mismatches can silently break operational tooling like WP-CLI. Reviewing each plugin's 'Tested up to' field and checking for recent development activity helps identify abandonment risks before an upgrade causes disruption. Taking at least three generations of full database and file backups is recommended, since incomplete migrations can be difficult to recover from. Testing the full upgrade process on a staging environment that mirrors production is strongly advised before applying any major version change to a live site.

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