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@@ -23,7 +23,7 @@ Best practices
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This allows using the same code to create the initial configuration and upgrade configurations on upgrades.
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* If it is unavoidable to run different code during the initial installation, the ``sysconfig.gluon_version`` variable
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- can be checked. This variable in ``nil`` during the initial installation and contains the previously install Gluon
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+ can be checked. This variable is ``nil`` during the initial installation and contains the previously install Gluon
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version otherwise. The package ``gluon-legacy`` (which is responsible for upgrades from the old firmwares of
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Hamburg/Kiel/Lübeck) uses the special value ``legacy``; other packages should handle this value just as any other
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string.
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