For Windows users:
KiCad has renamed its System variables in use for nightly builds that will carry into KiCad 6. This has become necessary to allow concurrent versions of KiCad to more easily co-exist on platforms in the future.
Windows Installer Change
The Windows installer for new KiCad nightly builds from today onwards will now install into a versioned path.
Previously, KiCad would be installed into
C:\Program Files\KiCad\Now KiCad nightly will install into
C:\Program Files\KiCad\5.99\
No more excuses for not installing 5.99 and testing it!
EDIT: There’s some problem in the latest nightly build installer ATM, see the linked thread. I suggest avoiding it until it’s fixed.
EDITEDIT: The latest nightly build works.
EDITEDITEDIT: I added instructions for easy safe installation procedure unless you want to wait for the official instructions. Just start from scratch. Because we are talking about nightly builds for testing, it may not be worth trying to keep old settings. (4th edit: read the post linked to below if you use 3D models.)