Why Upgrade BSD 4.2 --> BSD 4.3?

[Tim Evans]

The Federal agency where work is planning on upgrading BSD 4.2 (on a
VAX) to 4.3, and needs "justification" to put on the paperwork.  Is there
a _short_ description of why 4.3 is "better" than 4.2 around--or could
one (or more) be provided.

PLEASE, I don't need voluminous technical information on what's in 4.3
that's not in 4.2, etc.  Just two or three sentences describing the 
major differences (improvements) that'll fit on a '393'.

Please email responses.  Thanks.

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Tim Evans  2201 Brookhaven Court, Fallston, MD  21047   (301) 965-3286