The first beta release of Endless OS 4.0 is out! Please follow these instructions if you want to join the beta testing program. Bear in mind that the chance of encountering bugs in a beta release is higher than in a regular release – please ensure your data is backed up before updating.
Endless OS 4.0 will bring a lot of changes and improvements, which are detailed in the Endless OS 4.0 (UNRELEASED) Release Notes. Most of the changes listed there are already present in the 4.0.0~beta1 release, but a few things are still expected to change (ex., minor kernel update from linux-stable).
As a beta tester, you can help us by providing feedback on stability and hardware support, and reporting software regressions (things that used to work in previous releases that stopped working on this new release). And specifically for this beta release, we are looking for feedback on printing and VPN connectivity with L2TP and OpenConnect/AnyConnect VPNs.
Note: there was a small problem with the ostree refs for 4.0.0~beta1, so we released 4.0.0~beta2 right after to fix it.