EVM-RS 0.11.0

What's new?

We’re transitioning SputnikVM naming to EVM-RS because it is a network agnostic EVM implementation built in Rust, and EVM-RS reflects that purpose.

Network support

As of Version 0.11 EVM-RS passes every test in the ETH test suit up to Constantinople hard-fork,
which essentially means that it can be used with the ETH network.

Related Pull Requests:

• ETCDEVTeam/sputnikvm#337
• ETCDEVTeam/sputnikvm#349
• ETCDEVTeam/sputnikvm#352
• ETCDEVTeam/sputnikvm#360
• ETCDEVTeam/sputnikvm#364
• etclabscore/evm-rs#2
• #22

Changes:

• Byzantium opcodes implementation is tested and refined
• The following opcodes are implemented and tested:
  • SHL, SHR, SAR (EIP-145)
  • CREATE2 (EIP-1014)
  • EXTCODEHASH (EIP-1052)
• SSTORE opcode gas metering adjustments (EIP-1283)
• Number of new and pre-0.11 interpreter bugs fixed

API

EVM-RS API is now more agile then ever: the new DynamicPatch API enables the patch-based configuration
to be performed at runtime, as opposed to static patches that were based on using the static generic types.
This change is particularly useful for multi-chain clients like multi-geth that cooperates with EVM-RS over
an FFI boundary. Now it may configure EVM-RS feature-wise in runtime, and not rely on a pre-defined set of network and fork specific constructors.
All that with keeping overhead as low as possible and completely zero-copy!

Therefore, we recommend switching to evm-network crate as a foundation for Patch-building,
evm-network-* crates are considered deprecated and may not be supported in the future releases.

Related Pull Requests:

• etclabscore/evm-rs#23
• etclabscore/evm-rs#31
• #36
• #37

Changes:

• New evm-network with a set of precompiled contracts and re-exports of Patch and DynamicPatch APIs.
• Breaking changes in the Patch trait and related code

Testing

Testing framework for the JsonTests (VMTests from ETH Test Suite) have been majorly reworked,
now it generates a separate native Rust test for each testcase in the Json files, for debugging and subset runs convenience.

Related Pull Requests:

• ETCDEVTeam/sputnikvm#335

Changes:

• use of custom derive macro to generate tests from json files.
• generate benchmarks using criterion.
• update the tests from foundation upstream.

Documentation

• Automated formatting with rustfmt

Other changes

• rust-secp256k1 feature is enabled by default
• Minumum Rust version updated to 1.33.0.
• Rust 2018 edition is enabled by default.
• Code formatting with rustfmt and CI rules to enforce correct formatting.
• Continuous Integration with Jenkins CI.
• General dependencies upgrade.
• Transition back to ethereumproject under the name evm-rs.
• Change of crate names to evm and evm-* for related projects.

Related projects

• evm-ffi received support of the DynamicPatch API.
• Ethereum Classic specific APIs are deprecated in evm-ffi and are going to be removed in the future releases.

View full changelog