Gmail Confidential mode allow G Suite users sending emails with expiration date, restrict to forward, copy, print, or download email content or attachments.
MacOS isn't associated with Linux in any way. What we call macOS nowadays is operating system developed by NeXT.Inc called NeXTstep and it based from BSD
Windows launch is a new terminal application for command-line users with features like tabs & theming. As of today, the Windows Terminal & Windows Console is open source.
Recent Zimbra XXE / SSRF Vulnerability Disclosure (CVE-2019-9670) being actively exploited and could allow an attacker to RCE on an affected Zimbra system.