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@ascjones ascjones released this 01 Feb 20:15
· 732 commits to master since this release
v4.0.0-rc
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Learn about vigilant mode.

The first release candidate is here! This is the first release which could become the final
v4.0.0. Any subsequent release candidates should only contain bug fixes: no API changes,
breaking or otherwise.

Breaking Changes

  1. We've renamed some of the generated message methods on the ContractRef struct. They
    have been changed from _checked to try_ (#1621)
  2. We have removed the Default implementation for AccountIds. This is because of
    security concerns around the use of the zero address which has a known private key in
    the sr25519 and ed25519 curves (#1255).
  3. We have replaced the CallBuilder::callee() method with a call() method and also
    added a delegate() method. This streamlines the Call and DelegateCall workflows
    (#1636)

Added

  • E2E: expose call dry-run method ‒ #1624
  • Make cross-contract callee non-optional ‒ #1636

Changed

  • Rename _checked codegen call methods with try_ ‒ #1621
  • Bump Substrate and subxt dependencies ‒ #1549

Removed

  • Remove Default implementation for AccountId ‒ #1255
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