Will updating Mongo 3.4.x to 3.6.x in production mess up my Meteor app?

My provider has said I need to update my production Mongo instance from 3.4.23 to 3.6.17 by the end of the month.

My app is running on Meteor I encountered & subsequently resolved the local Mongo driver issues.


I’d love to know if i hit the big scary ‘update mongo version’ button on my production database, will anything go horribly wrong?


  1. Simulate locally if you need to be sure
  2. Backup
  3. Upgrade Mongo version

Hi @rjdavid

When i upgraded to Meteor i did have to update the local mongo instance to 3.6 with these steps: https://github.com/meteor/meteor/issues/9871#issuecomment-416881052

Would something like have to be run on the sever?

Locally running on 3.6 works fine.

I have recent backups all good.

Sorry, not familiar with that feature