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Re: Mysql community edition upgrade from 8.0.36 to 8.4 (LTS)
Posted by: Herrick Peterson
Date: August 30, 2026 02:34PM

Hello,

This lines up with what I mentioned earlier, good add on the mysql_native_password deprecation specifically, that one trips up more people than expected since apps/connectors using it will fail silently on first connect rather than erroring during the upgrade itself.

One more thing worth throwing in for Raja: after running the upgrade checker and doing the actual upgrade, also check SHOW VARIABLES LIKE '%deprecated%' and the error log right after first startup, 8.4 logs warnings for anything it auto-migrated or ignored, easy to miss if you're not looking for it right after the restart.

Regards,
Herrick Peterson
DevOps Engineer
https://accuweb.cloud

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Re: Mysql community edition upgrade from 8.0.36 to 8.4 (LTS)
August 30, 2026 02:34PM


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