Real, dated releases and announcements — verified against official sources, not speculation.
Released September 30, 2015, OS X 10.11 shipped with SIP enabled by default — restricting even the root user from modifying protected system files.
Released July 27, 1993, Windows NT 3.1 was the first shipping version of the from-scratch, Dave Cutler-led operating system that underlies every Windows release since.
First revealed via Windows 10 Insider Preview Build 14316 on April 6, 2016, WSL let Windows run real Linux binaries for the first time.
Announced June 24, 2021 by Panos Panay and released October 5, 2021, Windows 11 brought a redesigned interface and stricter hardware requirements.
FreeDOS reached its first stable 1.0 release on September 3, 2006 — twelve years after Jim Hall's original 1994 call to build a free DOS.
FreeDOS 1.2 shipped in December 2016, refreshing the distribution's package set and installer nearly five years after 1.1.
FreeDOS 1.3 shipped February 20, 2022, continuing the project's roughly five-year major release rhythm with an updated package set.
On July 21, 2015, Kubernetes hit its 1.0 milestone the same day Google donated it as seed technology to the newly formed Cloud Native Computing Foundation.
At PyCon on March 15, 2013, dotCloud co-founder Solomon Hykes introduced Docker to the world, ahead of the company's later pivot to focus on it entirely.
On October 29, 2013, dotCloud announced it was scaling back its original PaaS business and renaming the company entirely around its container tooling.