Hostgroups in Graylog2 will die
The next version of Graylog2 (0.9.6) will no longer include hostgroups. Let me explain why: You can now build hostgroups using streams since there is a hostname regex matcher rule. The difference is that you are more flexible because of all the other stream filters available. Keeping the hostgroups alive would basically mean having a duplicated feature with less flexibility.
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