This is a pre-release (non-production ready)

This release includes fixes for regressions introduced in v7.7.0.0.

Note

• If you configure a default shell, ensure that OpenSSH installation path is in system PATH. If not already present, amend system PATH and restart sshd service.
• Scp and Sftp are tested to work with Powershell and Cygwin's bash as default shells. There are still issues with WSL bash (manifest as hung sessions), we are working on investigating these.

List of all issues fixed - here

Source - https://github.com/PowerShell/openssh-portable/releases/tag/v7.7.1.0