Solidity Blog

The 2022 Solidity Developer Survey results are in! In this post, we will be summarizing and analyzing them. First of all, a big thank you to everybody who took the time and participated and to everybody who helped us spread the word about it! This year, we received a smashing 1401 responses. That is more than a 3x in responses compared to the previous survey and we couldn’t be happier with the turnout. Your input is invaluable to us and... [Read More]

The highlight of Solidity 0.8.19 release is the support for defining operators on user-defined value types (UDVTs). If you have not been keeping up with recent features, UDVTs are a new class of types introduced in Solidity 0.8.8. They provide an abstraction over an elementary value type that results in a completely new type. This is similar to creating an alias, but the new type is distinct from the underlying value type and all other UDVTs derived from that underlying... [Read More]

We are excited to announce the latest release of the Solidity Compiler, Solidity v0.8.19. This latest version includes a range of improvements and it also introduces the support for defining operators on user-defined value types (UDVTs)! You can learn about it at length in our feature deep-dive blogpost. [Read More]

Introducing the newest version of the Solidity Compiler! We are excited to announce the latest release of the Solidity Compiler, Solidity v0.8.18. This latest version includes a range of improvements and it also introduces support for the Paris upgrade! [Read More]

It’s that time of the year. Drumroll, please! 🥁🥁🥁 We are launching the Solidity Developer Survey 2022! Before we wrap up 2022 for good, we want to reach out to collect your feedback and insights so we can improve on it! 📝 TAKE THE SURVEY! 📝 You can find the previous results of the Solidity Developer Survey 2021 here. In 2021, 435 developers from 73 different countries participated with 80% of respondents using Solidity daily or weekly. [Read More]

More than two years have passed since we introduced Solidity core team members on the blog and we realized it is high time for some updates: Meet new team members, find out who moved on to other adventures and learn about recent changes in the team structure! Before we dive in, a reminder that the Solidity programming language and compiler are open-source community projects. This post dives into the core team that leads the development. Nevertheless, we cannot stress enough... [Read More]

On September 5, 2022, a bug in Solidity’s Yul optimizer was found by differential fuzzing. The bug was introduced in version 0.8.13 and Solidity version 0.8.17, released on September 08, 2022, provides a fix. The bug is significantly easier to trigger with optimized via-IR code generation, but can theoretically also occur in optimized legacy code generation. We assigned the bug a severity of “medium/high”. [Read More]

Solidity v0.8.17 fixes an important bug, makes overflow checks on multiplication more efficient and adds an LSP feature to always analyze all files in a project. [Read More]

Solidity v0.8.16 fixes an important bug. The bug may result in small parts of dynamic tuple components being inadvertently zeroed during ABI re-encoding when the last component is a statically-sized uint or bytes32 calldata array. See Head Overflow Bug in Calldata Tuple ABI-Reencoding for more information. Apart from that, there are several minor bug fixes and improvements like more gas-efficient overflow checks for addition and subtraction. [Read More]

On July 5, 2022, Chance Hudson (@vimwitch) from the Ethereum Foundation discovered a bug in the Solidity code generator. The earliest affected version of the compiler is 0.5.8, which introduced ABI-reencoding of calldata arrays and structs. Solidity version 0.8.16, released on August 08, 2022, provides a fix. We assigned the bug a severity of “medium”. [Read More]