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                UNIX SOURCE CODE LEGALLY AVAILABLE,
                    DRAGONFLY BSD 4.8 RELEASED

                           Nicolas Herry
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                            2017/03/29





1 UNIX source code legally available, DragonFlyBSD 4.8 released
===============================================================

  Some 25 years ago, [UNIX System Laboratories, Inc, dragged one of
  the main driving forces of UNIX, the Berkeley Software Design,
  Inc, to court] and sabotaged the most thriving software ecosystem
  witnessed so far. In the end, three files out of over 18,000 were
  removed due to possible copyright infrigement, Windows NT gained
  ground, Linux took off and the [Computer Science Research Group]
  was disbanded. This followed a licence change in v7, which
  forbade efforts like the famous [Lion's Commentary on UNIX]. How
  things have changed: [the source code for UNIX 8th Ed., 9th
  Ed. and 10th Ed. has been released publicly for everyone to read
  and learn].

  Skipping back to today, [DragonFly BSD 4.8 has just been
  released]. DragonFly began as a fork of FreeBSD 4.8 and is one of
  the most interesting operating system design efforts since the
  2000s, which among other things brought us the wonder that is the
  [HAMMER filesystem].

  Also, [this].


[UNIX System Laboratories, Inc, dragged one of the main driving
forces of UNIX, the Berkeley Software Design, Inc, to court]
<https://en.wikipedia.org/wiki/UNIX_System_Laboratories,_Inc._v._Berkeley_Software_Design,_Inc.>

[Computer Science Research Group]
<https://en.wikipedia.org/wiki/Computer_Systems_Research_Group>

[Lion's Commentary on UNIX]
<https://en.wikipedia.org/wiki/Lions'_Commentary_on_UNIX_6th_Edition,_with_Source_Code>

[the source code for UNIX 8th Ed., 9th Ed. and 10th Ed. has been
released publicly for everyone to read and learn]
<http://minnie.tuhs.org/pipermail/tuhs/2017-March/009354.html>

[DragonFly BSD 4.8 has just been released]
<https://www.dragonflybsd.org/release48/>

[HAMMER filesystem]
<https://www.dragonflybsd.org/hammer/hammer.pdf>

[this]
<https://twitter.com/qikipedia/status/846107278780489728/photo/1>