Help:Upgrade key



The upgrade key is an internally generated keyCiteRef::gh:smw:3095 (stored as  in the  ) to make a setup (or installation) comparable with a previous instance of the software. It provides the means to detect changes in Semantic MediaWiki that requires a system administrator to take appropriate actions before the setup check can release the block and before users start to interact with the software to ensure the integrity of the installed Semantic MediaWiki.

The key is generated from multiple sources that shape the database setup in terms of what sort of tables or fields (and indices) are required and currently include:


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 * CiteRef::gh:smw:4461

Technical notes
Developers may modify the $smwgUpgradeKey directly to indicate that something has changed in regards to the internal database structure hereby ensures a new key is generated hereby forces the next install (or upgrade) to run the  or   script.

A release manager may also modify the $smwgUpgradeKey setting in  to ensure that installs (or upgrades) with a new release do run the   or   script.