======Overview======
The upgrade of Mongo can be performed in several ways, but in general there are 2 ways:

  * [[mongo_upgrade_binaries|Upgrade binaries]]

This method involves upgrading to binaries from one version to the other. It can be very exhaustive and repetative, if you are staring from old release.

  * [[mongo_upgrade_logical|Migrate to newer version]]

This method is way better if you are staring from old release (e.g. 2.6). In nutshell, you will perform a logical export and import into the newer release. However there are some limitations to that method.