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From: mouse@LARRY.MCRCIM.MCGILL.EDU
Newsgroups: comp.windows.x
Subject: Re:  using X11.4 clients with a X11.3 server
Message-ID: <9009090251.AA04561@Larry.McRCIM.McGill.EDU>
Date: 9 Sep 90 02:51:46 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 20

> I have just received a X-terminal equiped with a Release 3 server.
> [...wants to use R4 library and client sources...]
> What will happen if manage to get libs and clients compiled and
> running and then try to run them on my X-terminal?

You're in luck.  An R3 server should interoperate just fine with R4
clients.  Of course, unless it's a rather unusual R3 server, you won't
have things like nonrectangular windows that came out in R4, but that's
entirely unavoidable, and R4 clients generally degrade gracefully in
the presence of an R3 server[%].  You likely won't notice any problems
at all.  (Or at least, no more than you would with an R4 server :-)

[%] Of course, it's possible that some client out there will refuse to
    run without the Multi-Buffering extension (say), but such clients
    are, as I understand it, rare.

					der Mouse

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