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Home/ Questions/Q 8287501
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Editorial Team
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Editorial Team
Asked: June 8, 20262026-06-08T12:03:51+00:00 2026-06-08T12:03:51+00:00

I want to upgrade my mongoid gem to 3.0 so I can upgrade activeadmin-mongoid

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I want to upgrade my mongoid gem to 3.0 so I can upgrade activeadmin-mongoid in order to get a new feature.

My mongoid-mapreduce gem however has a dependency on 2.0. Is there a way around this? Is there a way to see if mongoid-mapreduce would still work w/ mongoid 3.0?

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  1. Editorial Team
    Editorial Team
    2026-06-08T12:03:53+00:00Added an answer on June 8, 2026 at 12:03 pm

    Mongoid 3.0 is not backwards-compatible with version 2. Said gem won’t work with mongoid v3 as it is, because of dependency specification. Even if you fork it and update dependency, it’s still highly unlikely that it will work. A lot of things changed since v2. You need to fork that gem and adapt the code (or ask authors to do so).

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