Changes since 1.1
=================
-* nothing notable yet
+* Real arithmetic now has three simplex solvers for exact precision linear
+ arithmetic: the classical dual solver and two new solvers based on
+ techniques for minimizing the sum of infeasibilities. GLPK can now be used
+ as a heuristic backup to the exact precision solvers. GLPK must be enabled
+ at configure time. See --help for more information on enabling these solvers.
+* added support for "bit0" and "bit1" bitvector constants in SMT-LIB v1.2
+* support for theory "alternates": new ability to prototype new decision
+ procedures that are selectable at runtime
+* various bugfixes
Changes since 1.0
=================
-This is CVC4 release version 1.1. For build and installation notes,
+This is CVC4 release version 1.2. For build and installation notes,
please see the INSTALL file included with this distribution.
This first official release of CVC4 is the result of more than three
-Release Notes for CVC4 1.1, April 2013
+Release Notes for CVC4 1.2, May 2013
** Getting started
The CVC family of systems relies on Type Correctness Conditions (TCCs) when
mixing two types that have a compatible base type. TCCs, and the checking of
-such, are not supported by CVC4 1.1. This is an issue when mixing integers and
+such, are not supported by CVC4 1.2. This is an issue when mixing integers and
reals. A function defined only on integers can be applied to REAL (as INT is a
subtype of REAL), and CVC4 will not complain. It is up to the user to ensure
that the REAL expression must be an integer. If the REAL expression is not
** Proof support
-CVC4 1.1 has limited support for proofs, and they are disabled by default.
+CVC4 1.2 has limited support for proofs, and they are disabled by default.
(Run the configure script with --enable-proof to enable proofs). Proofs
are exported in LFSC format and are limited to the propositional backbone
of the discovered proof (theory lemmas are stated without proof in this
** Nonlinear arithmetic
-CVC4 1.1 has a state-of-the-art linear arithmetic solver. However, there
+CVC4 1.2 has a state-of-the-art linear arithmetic solver. However, there
is extremely limited support for nonlinear arithmetic in this release.
** Portfolio solving
1\.1 libcvc4:1:0:0 libcvc4parser:1:0:0 libcvc4compat:1:0:0 libcvc4bindings:1:0:0
1\.1\.1-prerelease libcvc4:1:0:0 libcvc4parser:1:0:0 libcvc4compat:1:0:0 libcvc4bindings:1:0:0
1\.2-prerelease libcvc4:1:0:0 libcvc4parser:1:0:0 libcvc4compat:1:0:0 libcvc4bindings:1:0:0
+1\.2 libcvc4:1:1:1 libcvc4parser:1:1:0 libcvc4compat:1:0:0 libcvc4bindings:1:0:0