This features contains basic KNIME nodes.
Extension 
KNIME Base nodes
v 4.4.1
This extension is already included in KNIME Analytics Platform, there is no need to install it.
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Included nodes & related workflows
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Copyright by KNIME AG, Zurich, Switzerland
Update site information
KNIME Analytics Platform 4.4 Update Site, Version 4.4.0
http://update.knime.com/analytics-platform/4.4
In case you can’t install the extension via drag & drop, please check that the update site is activated.