v5.5.29 — Raw chocolate

Hello once again!

In this week's Truffle release we've added the ability to use instance.estimateGas() ⛽ or instance.call() ☎ with Truffle Contract. (The latter won't work if your contract already has a method named call.) This is useful if you want to estimate the gas used by the fallback function, or to test the fallback function's return value.

Also this week, @Neurone has updated the list of URLs that we source the Solidity compiler from. Faster solc binaries have now been given a higher priority, so hopefully this should reduce your compile times! 🏇

In addition, we've added support in truffle debug --fetch-external for more of the networks supported by Etherscan, so you can debug 🕵 verified contracts on more networks. And as always, come back next week for even more improvements to Truffle! 👋

How to upgrade

We recommend upgrading to the latest version of Truffle by running:

npm uninstall -g truffle
npm install -g truffle

Changelog

Enhancements

• Add instance.estimateGas() and instance.call() (#5426 by @haltman-at)
• Add hecoinfo testnet back in to source-fetcher (#5497 by @haltman-at)
• Add optimistic goerli to etherscan fetcher (#5496 by @haltman-at)

Bug fixes

• Update list of URLs to fetch Solidity compiler from (#5008 by @Neurone)

Internal improvements

• Properly time REPL inputs (#5479 by @cds-amal)
• Use canonical URL for goerli-optimistic (#5508 by @haltman-at)
• Use @truffle/spinners in @truffle/preserve instead of spinnies (#5485 by @benjamincburns)
• Remove faker from abi-utils and generate arbitraries manually (#5484 by @eggplantzzz)

Dependency updates

• Update abi-to-sol to ^0.6.6 (#5491 by @gnidan)