Merge pull request #4478 from ethereum/requireStorageLocation

Turn missing storage locations into an error.

1 files changed, 2 insertions, 0 deletions

diff --git a/Changelog.md b/Changelog.md
index b621f624..a7b452ac 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -4,6 +4,7 @@ How to update your code:
  * Change every ``.call()`` to a ``.call("")`` and every ``.call(signature, a, b, c)`` to use ``.call(abi.encodeWithSignature(signature, a, b, c))`` (the last one only works for value types).
  * Change every ``keccak256(a, b, c)`` to ``keccak256(abi.encodePacked(a, b, c))``.
  * Make your fallback functions ``external``.
+ * Explicitly state the storage location for local variables of struct and array types, e.g. change ``uint[] x = m_x`` to ``uint[] storage x = m_x``.
 
 
 Breaking Changes:
@@ -43,6 +44,7 @@ Breaking Changes:
  * Type Checker: Only accept a single ``bytes`` type for ``.call()`` (and family), ``keccak256()``, ``sha256()`` and ``ripemd160()``.
  * Type Checker: Fallback function must be external. This was already the case in the experimental 0.5.0 mode.
  * Remove obsolete ``std`` directory from the Solidity repository. This means accessing ``https://github.com/ethereum/soldity/blob/develop/std/*.sol`` (or ``https://github.com/ethereum/solidity/std/*.sol`` in Remix) will not be possible.
+ * References Resolver: Turn missing storage locations into an error. This was already the case in the experimental 0.5.0 mode.
  * Syntax Checker: Named return values in function types are an error.
  * Syntax Checker: Disallow unary ``+``. This was already the case in the experimental 0.5.0 mode.
  * View Pure Checker: Strictly enfore state mutability. This was already the case in the experimental 0.5.0 mode.