| 74651 |      1 | Subject: Announcing Isabelle2021-1
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| 9928 |      2 | To: isabelle-users@cl.cam.ac.uk
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|  |      3 | 
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| 74651 |      4 | Isabelle2021-1 is now available.
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| 60116 |      5 | 
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| 74651 |      6 | This version introduces many changes over Isabelle2020-1: see the NEWS
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| 73010 |      7 | file for further details. Here are various details:
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| 68545 |      8 | 
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| 74680 |      9 | * HTML presentation now includes links to formal entities.
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|  |     10 | 
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| 74651 |     11 | * Isar: local theory support for 'syntax' and 'no_syntax' commands.
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| 73010 |     12 | 
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| 74651 |     13 | * Isabelle/jEdit: distribution of original jEdit editor with Isabelle/Scala
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|  |     14 | modules and plugins.
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| 68545 |     15 | 
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| 74651 |     16 | * HOL: new order prover.
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| 68545 |     17 | 
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| 74651 |     18 | * HOL: many changes and improvements on bit operations and word types.
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| 71485 |     19 | 
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| 74651 |     20 | * HOL: various library improvements (HOL-Library, HOL-Combinatorics,
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|  |     21 | HOL-Analysis, HOL-Statespace)
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| 68545 |     22 | 
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| 74651 |     23 | * Sledgehammer: update of ATPs and SMTs: E prover, veriT, Zipperposition,
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|  |     24 | Vampire (now with Open-Source license).
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| 68545 |     25 | 
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| 74651 |     26 | * Nitpick: external MiniSat solver for all supported Isabelle platforms.
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|  |     27 | 
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|  |     28 | * ML: uniform treatment of external processes via Isabelle/Scala.
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| 71485 |     29 | 
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| 74651 |     30 | * ML: advanced antiquotations for Type/Const constructors, and for inline
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|  |     31 | instantiation of types, terms, facts.
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| 68545 |     32 | 
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| 74651 |     33 | * Haskell: substantially improved Isabelle/Haskell library.
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| 68648 |     34 | 
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| 74651 |     35 | * System: more predefined Isabelle symbols (blackboard-bold, Z notation).
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|  |     36 | 
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|  |     37 | * System: support for Isabelle/Scala modules defined in user-space.
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| 68648 |     38 | 
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| 74651 |     39 | * System: improved document preparation using Isabelle/Scala.
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| 68545 |     40 | 
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| 74913 |     41 | * System: update to current Java 17 LTS.
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|  |     42 | 
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|  |     43 | * System: update to Poly/ML 5.9 with improved support for ARM64 on Linux.
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| 54034 |     44 | 
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| 12983 |     45 | 
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| 74651 |     46 | You may get Isabelle2021-1 from the following mirror sites:
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| 9928 |     47 | 
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| 68599 |     48 |   Cambridge (UK)       https://www.cl.cam.ac.uk/research/hvg/Isabelle
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|  |     49 |   Munich (Germany)     https://isabelle.in.tum.de
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| 70032 |     50 |   Sydney (Australia)   https://mirror.cse.unsw.edu.au/pub/isabelle
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| 68599 |     51 |   Potsdam, NY (USA)    https://mirror.clarkson.edu/isabelle
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