An upgrade needs a compatibility check, a tested release and a recovery path. Which changes deserve particular attention before the new version reaches production?

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Tasadduq BurneyownerOwner · Founder

26525 reputation · 11 Jun 2023, 22:54 UTC

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Use the supported upgrade path and compatibility checks for the exact release. Test SQL modes, reserved words, authentication and driver behavior. Rehearse schema changes and backup restoration before the upgrade; reverting binaries against an upgraded data directory may not be supported.

How should I approach a MySQL upgrade?

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