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Changelog and documentation.

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chriseth 2020-11-10 11:09:54 +01:00
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Changelog.md
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@ -3,6 +3,7 @@
Breaking Changes:
* Assembler: The artificial ASSIGNIMMUTABLE opcode and the corresponding builtin in the "EVM with object access" dialect of Yul take the base offset of the code to modify as additional argument.
* Code Generator: All arithmetic is checked by default. These checks can be disabled using ``unchecked { ... }``.
* Code Generator: Cause a panic if a byte array in storage is accessed whose length is encoded incorrectly.
* General: Remove global functions ``log0``, ``log1``, ``log2``, ``log3`` and ``log4``.
* Type Checker: Function call options can only be given once.
* Type System: Unary negation can only be used on signed integers, not on unsigned integers.

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docs/080-breaking-changes.rst
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@ -32,6 +32,9 @@ the compiler notifying you about it.
This will save gas on errors while it still allows static analysis tools to distinguish
these situations from a revert on invalid input, like a failing ``require``.
* If a byte array in storage is accessed whose length is encoded incorrectly, a panic is caused.
A contract cannot get into this situation unless inline assembly is used to modify the raw representation of storage byte arrays.
New Restrictions
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