Release | Endless OS 5.1.1

[starnight]

Endless OS 5.1.1 has been released. The images will be available
later. It includes some fixes:

• The screen no longer takes 10–20 seconds to switch on after
  suspending and resuming the computer.
• Fix boot failure on some models with enabled Intel® Rapid Storage
  Technology (Intel® RST) feature, such as Acer Nitro AN515-54.

Here is the release note:

Endless OS 5.1.1 release notes

[starnight]

By the way, the document Booting the previous OS version shows how to boot previous version (Rollback) with GRUB. It includes a demo video, too.

Some computers, such as Acer Nitro AN515-54 with Intel® RST feature may boot failed after upgraded from EOS 5.0.x to EOS 5.1.0. “Rollback to EOS 5.0.x with GRUB, boot into the system and upgrade to EOS 5.1.1 again” can avoid the the issue.