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add changelog entry and docs note

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Leo Alt 2022-05-11 17:16:10 +02:00
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Changelog.md
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@ -15,6 +15,7 @@ Bugfixes:
* Type Checker: Properly check restrictions of ``using ... global`` in conjunction with libraries.
* Assembly-Json: Fix assembly json export to store jump types of operations in `jumpType` field instead of `value`.
* SMTChecker: Fix bug when z3 is selected but not available at runtime.
* SMTChecker: Fix ABI compatibility with z3 >=4.8.16.
* TypeChecker: Convert parameters of function type to how they would be called for ``abi.encodeCall``.
* View Pure Checker: Mark ``returndatasize`` and ``returndatacopy`` as view to disallow them in inline assembly blocks in pure functions.

5
docs/smtchecker.rst
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@ -629,6 +629,11 @@ option ``--model-checker-solvers {all,cvc4,smtlib2,z3}`` or the JSON option
- if a dynamic ``z3`` library of version 4.8.x is installed in a Linux system (from Solidity 0.7.6);
- statically in ``soljson.js`` (from Solidity 0.6.9), that is, the Javascript binary of the compiler.
.. note::
z3 version 4.8.16 broke ABI compatibility with previous versions and cannot
be used with solc <=0.8.13. If you are using z3 >=4.8.16 please use solc
>=0.8.14.
Since both BMC and CHC use ``z3``, and ``z3`` is available in a greater variety
of environments, including in the browser, most users will almost never need to be
concerned about this option. More advanced users might apply this option to try