Subject: Announcing Isabelle2020

To: isabelle-users@cl.cam.ac.uk

Isabelle2020 is now available.

This version introduces many changes over Isabelle2019: see the NEWS

file for further details. Here are some notable points:

* PIDE: much faster startup of Isabelle/jEdit thanks to more scalable

session directory structure.

* PIDE: updated Isabelle/VSCode to follow recent moves of VSCode.

* Pure: improved treatment of theorem dependencies and proof terms,

accessible via command 'thm_deps'.

* Pure: proper treatment of oracles within internal proof objects,

accessible via command 'thm_oracles'.

* HOL: various library improvements.

* HOL: better organization of HOL-Analysis vs. HOL-Complex_Analysis.

* ML: more scalable export artifacts via XML blobs.

* Scala: support for external IDEs based on Gradle (e.g. IntelliJ IDEA).

* Scala: support for Ubuntu server applications (Linux-Apache-MySQL-PHP).

* System: Isabelle/Phabricator as self-hosted project management platform.

* System: update to current Poly/ML 5.8.1 with improved robustness,

especially on Windows.

* System: improved support for macOS, notably 10.15 Catalina.

You may get Isabelle2020 from the following mirror sites:

  Cambridge (UK)       https://www.cl.cam.ac.uk/research/hvg/Isabelle

  Munich (Germany)     https://isabelle.in.tum.de

  Sydney (Australia)   https://mirror.cse.unsw.edu.au/pub/isabelle

  Potsdam, NY (USA)    https://mirror.clarkson.edu/isabelle