TOC {#Upgrading12TOC}
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- @ref Upgrading12Introduction
  - @ref Upgrading12VersionCheck
  - @ref UpgradingBinaryPackage
- @ref Upgrading12Troubleshooting
- @ref Upgrading12APIChanges
- @ref Upgrading12ConfigChanges
- @ref Upgrading12RemovedFeatures
  - @ref Upgrading12RemovedFunctionality