The Library provides EndNote 21, the latest version.
EndNote X9.2 remains available for users who are unable to convert their existing EndNote libraries to the new file format required in later versions.
Which version should you install?
- New users who are installing EndNote for the first time and macOS users running Catalina or later should install the latest version, EndNote 21.
- Current EndNote users looking to upgrade from older, pre-X9 versions might consider installing version X9.2 because:
- Version X9.3 introduced a new file format for EndNote Library files and data folders and requires converting your existing EndNote Libraries to this new file format, which is not backwards compatible with older versions of EndNote.
- Some users have reported problems with the conversion process.
- If you share your EndNote Libraries by emailing compressed library files to collaborators, those running older versions of EndNote will not be able to open them if you upgrade to the latest version.
- Regardless of which version you choose to install, you should always back up your EndNote library prior to upgrading.
- You can read more about both versions in the Release Notes for version X9 and version 21.
- Users upgrading from previous versions may wish to review the comparison chart linked below.
- Links to both versions may be found in the installation instructions on this page.
Confused? Here is a flowchart that might help you choose:

A few known compatibility issues:
- The Microsoft Edge browser cannot be used to install EndNote. Edge 10 users can install EndNote using Firefox or Chrome.
- Users of macOS Catalina or later must install EndNote 21. X9.2 is not compatible with these versions of macOS.
- For more information about compatibility, please see EndNote's Compatibility and System Requirements.