I'm posting this article for Daniel Steiner, the author of
Oberon for OS/2, as he has no writing access to comp.lang.oberon.

beginning of forwarded text
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I am announcing that a new version of OS2oberon (Oberon System V4 for OS/2 2.1)
has been uploaded to hades.ethz.ch.

    Oberon for OS/2 is an implementation of Oberon for IBM OS/2 2.1.
    This is release 0.3 of the ETH Oberon System Version 4.0.

    Oberon Version 4.0 is a new release that replaces Version 2.2.
    The main difference between V2.2 and V4.0 is the replacement
    of TextFrames by WriteFrames and Edit by Write. A more precise des-
    cription of the differences between V2.2 and V4.0 can be found
    in the text "OberonV4.Text".

    This version of Oberon for OS/2 does run on both FAT and HPFS partition
    but does not use advanced features of HPFS filesystem if running on a
    HPFS partition.

   SYSTEM REQUIREMENTS
    Hardware:
    - An IBM Computer or Compatible running IBM OS/2 2.1.
    - A 386, 486 or Pentium processor.
    - 4MB of extended memory (absolute minimum).
    - 5 MB of hard disk space.
    - preferably a screen with resolution of 1024 by 768 pixels
        (although smaller size screens will work, too).
    - preferably a three button mouse (and a mouse driver that
      supports all three mouse buttons).

    Software:
    - IBM OS/2 2.1

RESTRICTIONS
        - currently only the current drive is supported
        - color palette is not supported
        - to increase termination speed (System.Quit) $FILEDIR.$$$ is not
          written back to disk
        - calling nil procedure variables result in wrong trap message (wrong
          location)

For more details read the file "oberon2_read.me"

The software can be obtained by anonymous ftp from
hades.ethz.ch:/pub/Oberon/OberonV4/OS_2