Hardhat 3 is now stable 🥳 Solidity TypeScript tests under one roof. Rust-powered runtime. Multichain. Ignition deployments. AI-ready scaffolding. Smaller artifacts, faster builds. Six months of beta hardening. Production ready! blog.nomic.foundation/hardha…

The Hardhat 2 to Hardhat 3 migration skill for coding agents is ready! Check it out npx skills add nomicfoundation/hardhat-skills --skill migrate-hardhat2-to-hardhat3 hardhat.org/docs/migrate-fro…

Hardhat 2 is being sunset and replaced by Hardhat 3! Hardhat 3 is stable and production ready. You should join the many teams that are already migrating if you haven’t yet. Hardhat 2 will be upgraded to support the Glamsterdam hardfork and will continue to receive bug fixes and security fixes until its end of life — which is the earlier of the Hegota mainnet activation or the 1st of July 2027. After that, there will be no further Hardhat 2 releases. Take a look at : - Hardhat 2's end of life policy hardhat.org/hardhat-2-end-of… - Hardhat 2 to Hardhat 3 migration guide hardhat.org/docs/migrate-fro… - Foundry to Hardhat 3 migration guide hardhat.org/docs/migrate-fro… Migrating is just a few easy steps, and we are rolling out an agent skill soon which can migrate most of your repository automatically. Stay tuned!

In case you missed it, OpenZeppelin's upgrades plugin now supports Hardhat 3, helping you deploy and manage upgradeable contracts safely 🔒

Hardhat v3.8.0 and v3.9.0 were released in the last few days! We now warn when you import a plugin but forget to enable it, failed tests show a cleaner Solidity stack trace, and code coverage can skip files! github.com/NomicFoundation/h…

Hardhat 3's most requested plugin, @openzeppelin/hardhat-upgrades, has been released! github.com/OpenZeppelin/open…

Hardhat 3.6.0 is out! The packages @nomicfoundation/hardhat-viem-assertions, @nomicfoundation/hardhat-keystore, and @nomicfoundation/hardhat-typechain were updated as well. Some of the changes include: - An AGENTS.md/CLAUDE.md file and skills are included in the sample projects when using hardhat --init. To install them in an existing project, take a look at github.com/NomicFoundation/h… - Introduced two new Solidity hooks for plugins, and deprecated of several existing ones. See the release notes for more details. - The hardhat flatten task now detects circular dependencies and fails accordingly. - Several improvements and bug fixes in the hardhat-viem-assertions plugin. - Environment variables now take precedence over the keystore. You can check the release notes here github.com/NomicFoundation/h… github.com/NomicFoundation/h… github.com/NomicFoundation/h… github.com/NomicFoundation/h…

Hardhat v3.1.4 added html reports for code coverage results! hardhat.org/docs/guides/test…

Since Hardhat v3.1.0, Solidity and TypeScript test outputs have been combined for easier reading. The error count and error messages at the end now include results from both test runners :) Check it out! hardhat.org

Hell yeah! We've finally finished migrating plugins to @HardhatHQ v3. Everything is faster and cleaner now.

Hardhat's support for the Fusaka hardfork will become the default in the upcoming release, but it's already available in v3.0.16 to enable manually by setting the hardfork option in your network config! hardhat.org/docs/reference/c…

Winners of our ETHGlobal Buenos Aires hackathon prize will win an actual hardhat!

The new Hardhat 3 documentation is live! Completely revamped. It's got a new structure for easier navigation, more depth, wider coverage, and better detail. Everything you need to get rolling! Check it out hardhat.org/docs/getting-sta…

Hardhat 3's built-in gas statistics feature has been released! Give it a try npx hardhat test --gas-stats hardhat.org/docs/guides/gas-…

Hardhat 3 is ready for production. Through his talk, @john_kane will showcase new and upcoming features like Solidity Tests, L2 simulation and Ecmascript Module support among many more.

Check out the updated docs system! Faster and now with search included. A lot more documentation coming soon hardhat.org/docs/getting-sta…

@HardhatHQ 3 is now live in production. Cool stuff! Ignition finally paid up its dues.

I used to deploy my contacts on hardhat until I started exploring foundry, but today I tried the new hardhat ignition, which is so much easier to deploy with team @HardhatHQ have turned around their game after all

Solidity vs. TypeScript tests: How to choose and combine in Hardhat 3 blog.nomic.foundation/solidi…

Have you ever wished you could name your smart contracts with ENS names using your build tools? Now you can with the Enscribe @HardhatHQ plugin.