Starting with version 1.3.6 OctoPrint now supports the use of a centralized plugin blacklist, to prevent loading of specific plugin versions that are known to cause serious issues with specific OctoPrint versions that interfere severly with normal operation.

If configured as such, OctoPrint will not load any plugins that are listed on this blacklist and match the provided versions. Deinstallation or manual upgrade of such plugins will however still be possible.

The blacklist is hosted here on plugins.octoprint.org as a JSON file and currently contains the following entries:

Plugin Affected Plugin Versions Affected OctoPrint Versions
OctoPrint-TPLinkSmartplug 0.7.0, 0.7.1 <1.3.6