Ok. So let me see if I have this right.
ksh93s refers to the last stable release of ksh93s. The first release
that brought about ksh93s was probably was something like ksh93s
2007-01-13 or something like that. However there may be a ksh93s+
which is the stable ksh93s plus bug fixes. So when folks say you
should be using ksh93s or better the mean ksh93s, or ksh93s+ but not
ksh93 and a date. But currently for ksh93t we should say ksh93t
2008-09-26 or something like that.
It is possible that ksh93t may be the last stable release although
it's also possible there may be a ksh93u, but not a jump like Python
2.{5,6,7} to Python 3000 or Ruby 1.9.{0,1,2} to Ruby 2.0 (which Matz
describes as currently "vaporware")
David Korn writes:
> Subject: Re: ksh93t and version numbering (Was Re: [ast-users] ksh93t
> 2008-09-26 beta src)
> --------
>
> > This reminds me - how exactly does version numbering work? I realize
> > there is currently ksh93t and what looks like a date. And it appears
> > like something like this happened for ksh93s. What is the final
> > version of the current series going to be called? For example is there
> > a contemplated ksh93u or ksh09a?
> >
>
> If there are major changes in the code, then I will move to a new letter.
> In this case, the major change was the addition of types for object
> oriented scripting. The suffix - means that the version is unstable
> like an alpha version. Without a suffix means that the release is
> pretty stable and is soaking in the field. The releases with a +
> are usually bug fixes added to the stable version.
>
> If I make a version that works with multiple threads, then it would
> become a new version like 'u'. I don't know whether there will
> be any version after t+ or not. Another posibility for a 'u'
> release is an enhanced arithmetic package allowing user define
> functions and complex variables. However, it is possible that
> a 'u' release will be a recoding of portions of the shell for
> performance enhancements.
>
> Note that this is not an exact science and that there has been
> almost one letter change per year since ksh93 was released.
>
>
> David Korn
> [EMAIL PROTECTED]
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>
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