Other notable missing OSI license options: Academic Free License (AFL), Common Development and Distribution License (CDDL), Common Public License (CPL), and Eclipse Public License. It would be nice to hear the selection criteria used and how those criteria combat license proliferation, as well as how holding this position matters to Google.
Solaris numbering is a marketing label. The output from uname(1) gives the engineering version:
$ uname -a SunOS shuttle 5.10 s10_69 i86pc i386 i86pc
The current development version number is "5.10.1", although that is subject to change. The meaning of each number group with respect to interface stability is given on attributes(5).
Other notable missing OSI license options: Academic Free License (AFL), Common Development and Distribution License (CDDL), Common Public License (CPL), and Eclipse Public License. It would be nice to hear the selection criteria used and how those criteria combat license proliferation, as well as how holding this position matters to Google.
The CDDL license does not prevent you from forking; it's a derivative of MPL, with the addition of choice of venue and some "patent peace" provisions.
(Of course, and like the *BSDs, if you choose to fork, you need to build your own core team that shares the principles that caused the fork...)