Why go through the trouble? Here are three powerful labs you can build with :

If you are updating your existing lab, here is the quick workflow:

An "updated" file might refer to a patched version of the qcow2 disk image where community members have:

: Unlike standard IOS, IOS XR uses a two-stage configuration. You must type commit after your configuration commands for them to actually take effect.

This is critical because older templates might try to launch the VM with the wrong RAM or CPU settings, or the wrong network adapter type (e.g., using E1000 instead of VirtIO), causing the router to crash. The "update" signifies that the software now supports that specific version natively.