Alan Coopersmith <[EMAIL PROTECTED]> wrote:
> The rules we've set up in Solaris allow us to do a large amount,
> even incompatible change, without going to a new major release.
>
> It would probably have to be something as fundamental as libc changing
> incompatibility and not offering an old version to force SunOS 6.
>
> For ksh, we could under the current rules do a variety of things:
>
> - Add ksh93 as /usr/bin/ksh93 - simple, easy, no problems, and leave
> both ksh88 and ksh93 in Solaris, with only ksh93 in OpenSolaris.
>
> - Announce at least a year before the next minor release that we
> are ending support for ksh88 scripts and make ksh93 replace ksh
> in that minor release. (Probably want to include ksh93 in a
> prior update release first so customers can test their scripts.)
One year is a short time for something that offers staibility like Sun Solaris.
For my programs I usually have a 5 year period when I introduce incompatible
interface changes and I require at least 2 major relases to include the
transition code.
The chance for having transitional code in a first Solaris major release has
been missed this year with Solaris 10.
Jörg
--
EMail:[EMAIL PROTECTED] (home) Jörg Schilling D-13353 Berlin
[EMAIL PROTECTED] (uni)
[EMAIL PROTECTED] (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
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