a. Existing customers already got their hands chopped, their prices raised, or their lawyers poked. They're stuck with an abusive, litigious, opaque vendor and will migrate out when they can. Many are stuck.
b. Prospective customers must have some compatibility need or they'd look elsewhere.
c. Developers won't be fooled so rule them out :)
https://www.youtube.com/watch?v=-zRN7XLCRhc&t=2308s
Start at 33:02 for full rant.
https://en.wikipedia.org/wiki/OpenIndiana
SmartOS, for example, is a more specialized application of the scions of OpenSolaris.
Here is a list of other distros that originated from the Illumos efforts after OpenSolaris was terminated:
-DilOS, with Debian package manager (dpkg + apt) and virtualization support, available for x86-64 and SPARC.
-NexentaStor, distribution optimized for virtualization, storage area networks, network-attached storage, and iSCSI or Fibre Channel applications employing the ZFS file system.
-OmniOS Community Edition, takes a minimalist approach suitable for server use.
-OpenIndiana, a distribution that is a continuation and fork in the spirit of the OpenSolaris operating system.
-SmartOS, a distribution for cloud computing with Kernel-based Virtual Machine integration.
-Helios, a distribution powering the Oxide Computer Rack.
-Tribblix, retro style distribution with modern components, available for x86-64 and SPARC.
-v9os, a server-only, IPS-based minimal SPARC distribution.
-XStreamOS, a distribution for infrastructure, cloud, and web development.
https://en.wikipedia.org/wiki/Illumos#Distributions
Edit: From this blog entry, this is suspicious: "the committed support for Oracle Solaris until at least 2037" - does Solaris have a 2038 problem?
Oracle would never give up the opportunity to continue milking customers until they're comletely dry.
They did kill all future releases and blew up the SPARC roadmap. They also fired everyone working on new features and releases but kept enough of a skeleton crew to charge legacy customers outrageous support fees.
But for all practical intents and purposes, it's dead. One guy releasing things like "ls -sh now actually shows human readable output" being highlighted as a new feature kind of tells you everything you need to know.
An of course Oxide is still very active in developing the open source version. They develop upstream first.
It’s still my favorite OS, if it fits what I need it for.
Other than a others like Irix, QNX or NeXTSTEP, I am not picky in what form UNIX/POSIX gets made available.
Apparently, it's out of support the same way RHEL 6 is out of support.