[isabelle-dev] Towards the release

[Lawrence Paulson]

I see no need for a (?) next to El Capitan. I’ve been using it on multiple machines for nearly a year.
Larry

> On 26 Oct 2016, at 10:58, Makarius <makarius at sketis.net> wrote:
> 
> On 26/10/16 00:05, Gerwin.Klein at data61.csiro.au wrote:
>> I’m planning to switch over to Sierra this week, and can hopefully report back next week on any issues with our l4v proofs, AFP, and isabelle itself.
>> 
>> Do we know who is administering macbroy30 and macbroy2? It think it would make sense to switch them over to 10.11 and 10.12 (if the hardware is still supported).
> 
> The PLATFORMS file documents the current situation for Isabelle support
> of certain Mac OS X versions, see
> http://isabelle.in.tum.de/repos/isabelle/file/4f0acbd97491/Admin/PLATFORMS#l25
> 
> In the past we've had particularly enthusiastic Mac system
> administration at TUM, but I don't see that at the moment. So I am
> reluctant to change a running system, especially macbroy2, which is very
> important for the Isabelle administration and release process.
> 
> After the release, we can probably discontinue Mountain Lion, and update
> macbroy30 to El Capitan or Sierra.  Both macbroy30 and macbroy31 are
> MacBookPro6,2 from Mid 2010, so it looks like Sierra still works, but
> that might be also the latest possible version.
> 
> Note that in the long run, it is more important to have reference system
> installations for older Mac OS versions that for newer ones: the newer
> ones are more likely to be installed by current users, although that is
> not really a systematic test.
> 
> 
> Generally, the reference systems according to Isabelle/Admin/PLATFORMS
> are required for three main purposes:
> 
>  * Compilation of Isabelle components (via ssh) -- on the *oldest*
> supported version.
> 
>  * Routine batch-builds of Isabelle + add-on tools -- on *all*
> supported versions. This is usually done by the administrative cronjob.
> 
>  * Occasional interactive tests (via Screen Sharing), to figure out GUI
> portability problems, to test the Isabelle.app integration etc.
> 
> 
> We have come quite far in the Isabelle platform support, not just on Mac
> OS X (or mac OS). It would be sad to loose that for no particular reasons.
> 
> 
> 	Makarius
> 
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