Stylus SDK 0.6.0

0.6.0 - 2024-08-30

This release contains bugfixes, some breaking changes, and general updates. This is the recommended release for usage at the time of the Stylus release on Arbitrum mainnet.

Breaking Changes

• #[selector(id = ...)] syntax has been removed to avoid misleading contracts
  from being implemented.
• Several methods in RawDeploy which were not fully implemented yet
• #[pure], #[view] and #[write] attributes have been removed in favor of
  using arguments to infer state mutability.
• stylus-sdk now ships with mini-alloc enabled by default. This means that
  a #[global_allocator] should not be declared in most cases. If a custom
  allocator is still needed the mini-alloc should be disabled (enabled by
  default).
• StorageU1 and StorageI1 types have been removed.

Deprecated

• The #[external] macro is now deprecated in favor of #[public] which
  provides the same functionality.
• The #[solidity_storage] macro is now deprecated in favor of #[storage]
  which provides the same functionality.

Changed

• Ensure consistency between proc macros when parsing attributes.
• Update sol_interface! macro to report errors when using Solidity features
  which have not yet been implemented.

Fixed

• Properly encode bytes when calling external contracts.
• Properly encode Bytes and strings in return types.
• Bytes type now works properly in export-abi.
• export-abi now works for contracts with no functions with returned values.
• Off-by-one error when storing strings with length 32.
• Interfaces in sol_interface! no longer incorrectly inherit functions from
  previous definitions.

Documentation

• Various documentation updates for clarity.
• Cleaned up typos and moved TODOs to the github issue tracker.

Security

• Function signatures which generate the same selector values will now fail
  at compile-time to avoid misleading contract calls.