Solidity Blog

Solidity v0.7.3 fixes a bug in the dynamic-array cleanup. To learn more about the bug and check if your contract is vulnerable please read this post with further details about the bug. Additionally, v0.7.3 adds the option to stop compilation after the parsing stage using solc --stop-after parsing. [Read More]

Solidity v0.7.2 fixes a bug in free functions, which had been introduced with v0.7.1, and adds compiler-generated utility file export. Furthermore, it comes with a considerably broadened language support of the SMTChecker. [Read More]

We’re excited to share that the Underhanded Solidity Contest is finally back! Inspired by the Underhanded C Contest and the first Underhanded Solidity Contest, organized in 2017 by Nick Johnson, we decided it is time for a much needed revival. The goal of this contest is to write innocent-looking Solidity code, which pretends to be clear and straightforward, but actually contains malicious behavior or backdoors. By hosting such a contest we aim to: Raise awareness about smart contract security. Uncover... [Read More]

As you might know, Solidity is an open-source community project mainly developed and maintained by a core team. Today, we would like to introduce some of our team members and share insights into their professional background, which components of Solidity they mostly work on, what they would like to see in Solidity and in the ecosystem in future and more! Since almost all of our work happens on Github you can find each team member’s Github handle next to their... [Read More]

Solidity v0.7.1 adds functions at file-level and fixes several small bugs. [Read More]

Solidity 0.7.0 is a breaking release of the Solidity compiler and language. This release does not include many features but rather changes that require a backwards-incompatible adjustment in syntax or semantics. For a detailed explanation, please see the documentation. Most notably, further cleanup of visibility and state mutability has been performed and several unpopular keywords have been removed. Types with mappings in memory are disallowed and shift and exponentiation operations use more reasonable types. Since we usually do not backport... [Read More]

Solidity v0.6.12 adds more flexibility when using inheritance with NatSpec comments and introduces many small improvements to the optimizer. [Read More]

With happiness and a tad of nostalgia, we’d like to share that Solidity v0.1.0 turns 5 years old today! (To be fair, v0.1.0 wasn’t an actual release, but it marks the time where the Solidity team started appointing version numbers.) We are puzzled over how fast time flew by. We’d like to use this opportunity to take a look back and walk down the Solidity memory lane together with you. In short: The Solidity language evolved rapidly, the ecosystem went... [Read More]

Solidity v0.6.11 adds inheritance to NatSpec comments, improves debugging data output and fixes some minor issues with opening up calldata for non-external functions. [Read More]

Welcome to Sourcify’s first short FAQ! If your questions around source verification haven’t been answered after reading this post, please feel free to drop by the Sourcify Gitter channel and ask us any question there. Also stay tuned on more turorials and developer focused content to follow here and on the Remix blog! [Read More]