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v2.0.0 - TypeScript / HF Support / EIP-155
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@holgerd77 holgerd77 released this 07 Jun 08:24
· 34 commits to master since this release
v2.0.0
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TypeScript / Module Import / Node Support

First TypeScript based release of the library, see PR #145 for details.

This comes along with some changes on the API, Node import of the exposed classes now goes like this:

const EthereumTx = require('ethereumjs-transaction').Transaction
const FakeEthereumTx = require('ethereumjs-transaction').FakeTransaction

The library now also comes with a type declaration file distributed along with the package published.

Along with this release we drop official support for Node versions 4,5 and 6. Officially tested versions are now Node 8, 10 and 11 (see PRs #138 and #146).

Hardfork Support / Official Test Updates

Along with a long overdue update of the official Ethereum Transaction tests (see PRs #131 and #138 for FakeTransaction) and an introduction of setting chain and hardfork by using our shared ethereumjs-common class (see PR #131) the transaction library now supports all HFs up to the Petersburg hardfork, see [constructor option docs (https://github.com/ethereumjs/ethereumjs-tx/blob/master/docs/interfaces/transactionoptions.md) for information on instantiation and default values (current hardfork default: petersburg).

API Changes:

  • Removal of the data.chainId parameter, use the opts.chain parameter or a custom Common instance

Default EIP-155 Support

Along with defaulting to a post-Spurious Dragon HF replay protection from EIP-155 is now activated by default. Transactions are subsequently also by default signed with EIP-155 replay protection, see PRs #153, #147 and #143.

This comes with some changes in how different v values passed on instantiation or changed on runtime are handled:

  • The constructor throws if the v value is present, indicates that EIP-155 was enabled, and the chain id it indicates doesn't match the one of the internal common object
  • No default v is set. If a transaction isn't signed, it would be an empty buffer
  • If v is changed after construction its value is validated in its setter

For activating non-EIP-155 behavior instantiate the transaction with a pre-Spurious Dragon hardfork option.

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