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Upgrade from mysql 8.0 to 8.4 before 31 July 2026 #2052

@ianheggie-oaf

Description

@ianheggie-oaf

Problem

AWS will charge us more if we don't update to MySQL 8.4 by 31 July 2026:
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/MySQL.Concepts.VersionMgmt.html#MySQL.Concepts.VersionMgmt.ReleaseCalendar

Describe the solution you'd like

  • Document all that went wrong with the upgrade to 8.0
  • Add tests to protect
  • Perform the upgrade

Describe alternatives you've considered

Manual testing (UGH)

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    devopsDeployment automationreliabilityIncrease reliability by reducing complexity, technical debt and increasing monitoring, robustness

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