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This page describes various ways to upgrade your QIIME installation to a new version.
For a detailed history of the most notable changes between versions see the QIIME ChangeLog. This points to the most recent version, so will usually also give a preview of the changes that are coming in the next version of QIIME.
If you have QIIME installed on a Linux machine, the easiest way to upgrade is by using the qiime-deploy tool. The qiime-deploy website has instructions for how to upgrade an existing installation.
If you run QIIME from within a virtual machine, you can either download the latest QIIME image or upgrade an existing one (e.g. to keep your settings, files, etc.) by following the QIIME Virtual Box install instructions.
If you run QIIME using the AWS EC2 service, visit this page for the latest QIIME AMI.
If you run QIIME on Mac OS X or have a native install (e.g. you are not using qiime-deploy to install QIIME on Linux), you will need to manually upgrade the versions of QIIME’s dependencies that have changed. To see a complete list of required dependency versions, please see this page. For a list of dependency versions that have changed between QIIME releases, please see the QIIME ChangeLog.
