[isabelle] Isabelle2013-1-RC4 available for testing



Dear Isabelle users,

here is another release candidate:

  http://isabelle.in.tum.de/website-Isabelle2013-1-RC4

This is probably the last one before final lift-off next week.


Notable changes wrt. Isabelle2013-1-RC3:

  * Minimal tuning of Isabelle/HOL library and tools.

  * Minimal tuning of some Isabelle/jEdit GUI aspects.

  * More documentation for Isabelle/jEdit (25 pages manual).

  * Proper join of forked diagnostic commands in Proof General theory
    loader.

  * Update to Poly/ML 5.5.1 with commits 1869 (fix two optimiser bugs) and
    1875 (allow IO request of zero characters).


See also https://bitbucket.org/isabelle_project/isabelle-release for the main website where the final stage before Isabelle2013-1 is organized. There is also a link to an issue tracker on the same Bitbucket site.

Observations from testing release candidates may be discussed here on isabelle-users (not isabelle-dev), on the bitbucket tracker, or via private mail.

It only makes sense to test the *latest* release candidate. People who have provided some form of feedback should update and check how that aspect is now treated -- sometimes a last-minute attempt to improve things actually goes into the opposite direction.


Major operating system vendors have now released their latest versions as well: Ubuntu 13.10, Windows 8.1, Mac OS X 10.9. So this is an opportunity to see that everything fits nicely together.


	Makarius




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