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eclipsescalaeclipse-pluginscala-ide

Eclipse: How can I install an older plugin version from an update site?

I want to determine if downgrading one of my Eclipse plugins to the previous version fixes the problem I have. I was wondering if there is a general method using the plugin's Eclipse update site that I can use Eclipse's install GUI to install an older version of the plugin.

If it matters, the tool of interest is the Scala-IDE at this update site: http://download.scala-ide.org/releases-28/2.0.0-beta

What I want is the previous build of the 2.0.0-beta.

Solution

  • Mirco Dotta answered this for me on the Scala IDE Forum.

    If the previous plugin version had been installed in the past, and if the update site maintains older releases of the plugin, it should be possible to revert to a previous version you have installed by performing the following:

    1. Uninstall the current plugin version (Eclipse -> About -> Installation Details -> Installed Software)
    2. Re-install a previous version using the "Installation History" (Eclipse -> About -> Installation Details -> Installed History).

    Note that in the case of the plugin I'm using, the update site does not maintain older versions, so this technique wouldn't help.