Installing multiple instances of AD versions

Created: 25.03.2021 | Updated: 12.08.2021

Can I install more than one version at a time? Do I have to remove older versions first? Do I have to use the same version to edit as was used to create the project?

Starting in Version: 18.0
Up to Version: Current

Solution Details

If your licensing is on subscription, it allows you to use the latest version of our software.  Altium Designer presents an entirely new look and feel starting at version 18, with new features that will enhance your board design experience.  Here's what's new for our current version:
(You can see what was added to any particular version by changing the version pulldown list at the top of the left panel)
If you want to try it out, you can have multiple versions installed (even running - although you may not have enough licenses to use them all) at the same time, as they do not interfere with each other.  And, the PCB files created by all versions of Altium use the same file format, so they are forward and backward compatible.  New features like Advanced Layer Stack manager or unlimited PCB Mechanical Layers with Layer Types from AD20 may not be supported in older versions.  When you open a PCB modified by a newer or older version, an html report will open describing any unsupported or converted features (if any.)

Download/install the most recent version from here (Any version can be installed directly, no incremental updates are required):

Here's documentation with screen shots:

Altium may ask if you would like a separate instance or an upgrade of your existing installation:!installing-multiple-instances-of-the-software

It is not necessary to uninstall older versions before or after installation, unless you are low on hard disk space.
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