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update release notes

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2023-01-31 12:19:33 -08:00
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RELEASE_NOTES.md
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@ -20,6 +20,13 @@ Version 4.12.2
benchmarks created by converting bit-vector semantics to integer
reasoning.
- change API function Z3_mk_real to take two int64 as arguments instead of int.
- Add _simplifiers_ as optional incremental pre-processing to solvers.
They are exposed over the SMTLIB API using the command [`set-simplifier`](https://microsoft.github.io/z3guide/docs/strategies/simplifiers).
Simplifiers are similar to tactics, but they operate on solver state that can be incrementally updated.
The exposed simplifiers cover all the pre-processing techniques used internally with some additional simplifiers, such as `solve-eqs`
and `elim-predicates` that go beyond incremental pre-processing used internally. The advantage of using `solve-eqs` during pre-processing
can be significant. Incremental pre-processing simplification using `solve-eqs` and other simplifiers that change interpretations
was not possible before.
Version 4.12.1
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