[isabelle-dev] Towards the next release --- and release naming scheme

Gerwin Klein kleing at unsw.edu.au
Tue Sep 28 01:30:40 CEST 2021

I'm actually pretty happy with the current scheme (eg. 2021-1).

If there is a serious issue within the same month, we can increase the number, and in practice it happens extremely rarely, so there is not much room for confusion. As long as the year remains accurate, the scheme is pretty straightforward.

I'd also be fine with Isabelle2021-Dec, although that is harder to order automatically. The current scheme is somewhat order compatible with the old (and confusing) Isabelle-94-6 scheme. None of these are very strong arguments.


> On 28 Sep 2021, at 03:51, Makarius <makarius at sketis.net> wrote:
> On 27/09/2021 19:37, Lawrence Paulson wrote:
>> Apple would add a suffix like S or SE. Or maybe Isabelle 2021 Pro? 😀
> Now that scheme is really from the 1990s.
> Did you know that an early candidate for the Isar proof language was actually
> "IsaPro"? It would have meant "Intelligible semi-automated Proving".
> As the inventor of the original Isabelle release naming scheme, do you have
> any inclinations to change anything, or keep the status-quo? For example:
>   Isabelle2021-1 (December 2021)
>   Isabelle2021-Dec
>   Isabelle2021-December
>   Isabelle_Dec-2021
>   Isabelle_December-2021
> The last two would also amend an old misunderstanding of mine: You always had
> something like Isabelle93.tar.gz but the name was intended to be "Isabelle 93"
> with the space, right?. I've got that wrong, and discovered only 10 years later.
> 	Makarius
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