{ skip to content }

Solidity 0.4.9 Release Announcement

Posted by Solidity Team on January 31, 2017

Releases

This release fixes quite some bugs and also adds several new features.

Things to look out for:

  • To disambiguate contracts and libraries of the same name in different files, everything is now prefixed by "filename:". This applies to the compiler output, the linker input and other things.
  • Internal exceptions are now thrown by using an invalid opcode (0xfe), manual exceptions still use an invalid jump.

Features:

  • Compiler interface: Contracts and libraries can be referenced with a file: prefix to make them unique.
  • Compiler interface: Report source location for "stack too deep" errors.
  • AST: Use deterministic node identifiers.
  • Inline assembly: introduce invalid (EIP141) as an opcode.
  • Type system: Introduce type identifier strings.
  • Type checker: Warn about invalid checksum for addresses and deduce type from valid ones.
  • Metadata: Do not include platform in the version number.
  • Metadata: Add option to store sources as literal content.
  • Code generator: Extract array utils into low-level functions.
  • Code generator: Internal errors (array out of bounds, etc.) now cause a reversion by using an invalid instruction (0xfe - EIP141) instead of an invalid jump. Invalid jump is still kept for explicit throws.

Bugfixes:

  • Code generator: Allow recursive structs.
  • Inline assembly: Disallow variables named like opcodes.
  • Type checker: Allow multiple events of the same name (but with different arities or argument types)
  • Natspec parser: Fix error with @param parsing and whitespace.

A big thank you to all contributors who helped make this release possible!

Download the new version of Solidity here.

Previous post

Next post

Get involved

GitHub

Twitter

Mastodon

Matrix

Discover more

BlogDocumentationUse casesContributeAboutForum

2024 Solidity Team

Security Policy

Code of Conduct