I have been using Eclipse for building my automation framework. Recently I wanted to use gauge in my framework. But while trying to install the plugin I noticed that the version number of Gauge for Eclipse is 0.0.3(not been updated for last 1 year) whereas for other IDE the version number is 0.9.4. Isn't it a huge drawback the gauge doesn't support one of the most widely use IDE. My question is - Does this mean that I will have to use IntelliJ to use latest version of Gauge?
No, each "product" has their on version numbers. So each plugin/package being separate from the standard IDE means it has a different number scheme. You need to check the release notes for the plugin/package and check compatibility with Eclipse versions to see which versions are supported with the plugin/package.