--- a/ANNOUNCE Fri Jun 04 16:55:08 2010 +0200
+++ b/ANNOUNCE Fri Jun 04 16:55:25 2010 +0200
@@ -7,8 +7,25 @@
NEWS file in the distribution for more details. Some notable changes
are:
-* FIXME
+* Explicit proof terms for type class reasoning.
+
+* Authentic syntax for *all* logical entities (type classes, type
+constructors, term constants): provides simple and robust
+correspondence between formal entities and concrete syntax.
+
+* HOL: Package for constructing quotient types.
+* HOL: Code generation now with simple concept for abstract
+datatypes obeying invariants; applications for typical data structures
+(e.g. search trees) can be found in the library.
+
+* HOL: New development of the Reals using Cauchy Sequences.
+
+* HOL: Reorganization of abstract algebra type class hierarchy.
+
+* Commands 'types', 'typedecl' and 'typedef' now work within a local theory
+context -- without introducing dependencies on parameters or
+assumptions.
You may get Isabelle2009-2 from the following mirror sites:
--- a/NEWS Fri Jun 04 16:55:08 2010 +0200
+++ b/NEWS Fri Jun 04 16:55:25 2010 +0200
@@ -139,6 +139,10 @@
* Command 'defaultsort' has been renamed to 'default_sort', it works
within a local theory context. Minor INCOMPATIBILITY.
+* Raw axioms/defs may no longer carry sort constraints, and raw defs
+may no longer carry premises. User-level specifications are
+transformed accordingly by Thm.add_axiom/add_def.
+
* Proof terms: Type substitutions on proof constants now use canonical
order of type variables. INCOMPATIBILITY for tools working with proof
terms.