Upgrading MongoDB version

How to update the version of MongoDB on your machine on different platforms and versions

Upgrading to 3.4 on Ubuntu 16.04 using apt

You must have 3.2 to be able to upgrade to 3.4. This example assumes you are using apt.

1. sudo service mongod stop
2. sudo apt-key adv –keyserver hkp: //keyserver.ubuntu.com:80 –recv
   0C49F3730359A14518585931BC711F9BA15703C6
3. echo “deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.4
   multiverse” | sudo tee /etc/apt/sources.list.d/mongodb-org-3.4.list
4. sudo apt-get update
5. sudo apt-get upgrade
6. sudo service mongod start

Ensure the new version is running with mongo. The shell will print out the MongoDB server version that should be 3.4 now.