This site is being rebuilt and some pages are out of date. For current details, write to [email protected]. This notice goes away when the rebuild is done.

No analytics unless you allow it, no tracking. This site keeps in your browser the language you pick, the theme, its colour, which site you chose, the currency on the pricing page and that you closed this notice; signing in adds session cookies. The legal page has the details.

Sign in

Radar · Solidity · Archive · Week 49 · Dec 1 – 7, 2025

Solidity 0.8.31 Release Announcement

Worth knowingcompiler

What changed
The announcement reiterates that the compiler now supports the new EVM features introduced by the Fusaka network upgrade, extends the functionality of storage layout specifiers, and deprecates the first batch of features scheduled for removal in the 0.9.0 breaking release.
Production impact
The source does not say.
Try it
Read the announcement to confirm the deprecation list and plan your migration.
Source
soliditylang.org/blog/2025/12/03/solidity-0.8.31-release-announcement

Understand it, then run it

Solidity 0.8.31 adds support for the new EVM features that came with the Fusaka network upgrade. It also lets you use a constant variable inside a storage layout specifier, which means you can compute the base slot of a contract at compile time. The compiler now warns you about a few old features that will be removed in 0.9.0, such as address.send(), address.transfer(), the old ABI coder, virtual modifiers, and contract‑type comparisons. These changes make the language a bit more future‑proof and keep it in line with the latest EVM changes.

Written by gpt-oss-20b from the linked source · claims checked against the sources · archive, not individually reviewed