Developer Preview – 2025-07-01

🚀 Features

• metadata:
  • New metadata account storage with ownership model for evm/svm/wasm runtimes (@dmitry123)
  • Re-implement svm storage using metadata API (@bfday)
• genesis-upgrade:
  • Add update account code by auth feature (@b33ngo)
• wasm-runtime:
  • Add using rwasm with runtime (@dmitry123)
• eip2935:
  • EIP-2935 implementation, e2e tests, and cleanup (@bfday)
• erc20:
  • Native wasm-driven universal ERC20 token standard with plugins support (@bfday)
  • Added processing of ERC20_MAGIC_BYTES into make_create_frame (@bfday)
  • Warmup precompiles before benchmarking (@bfday)
  • Additional tests and optimizations, plugin disable, bug fixes, LE endianess switch, error handling, modularization, benchmarking, better performance, reduced size, and native ser/deser (@bfday)
• builtins-fuel:
  • Add fuel builtins for imported functions (@xozzslip)
  • Add flag for emitting builtins fuel procedures (@xozzslip)
• build:
  • Return custom paths for cargo:rerun-if-changed (@bfday)
  • Docker-based reproducible builds with artifact generation (@d1r1)
• svm:
  • Unified block env creation, block propagation, balance settlement, debug_log split, contract test coverage, import optimizations, extended code size, error/output stringification, warnings cleanup, test toggles, and more integration with AddrType (@bfday)
• runtime/transaction:
  • Add method for resetting call id; reset call id before each transaction (@xozzslip)
• wasmtime:
  • Migrate system builtins to the new version of rwasm with updated context management system (@dmitry123)
  • Use unified wasmtime compilation config, migrate runtime to the new rwasm and updated caller, integrated new wasmtime execution model, optimized running evm e2e testing suite, temporarily disabled failing tests (@dmitry123)
  • New rwasm with new wasmtime compiler & executor (@dmitry123)
• test:
  • Multicall tests now enabled with new Wasmtime-based implementation (@xozzslip)

🐞 Bug Fixes

• rwasm/vm/stack-overflow:
  • Investigate and fix stack overflow issues, update to fixed rwasm version (@dmitry123)
• revm:
  • Run e2e tests with wasmtime enabled, fix artifact movement and CI versioning for sub-crates (@dmitry123)
• codec/metadata:
  • Migrate codec to BufMut, fix metadata create syscall input size (@dmitry123)
• svm:
  • Fix protected storage slot verification, block propagation, max code size logic, warnings, missing docs, and unused structs (@dmitry123, @bfday)
• runtime/rwasm:
  • Fix reading/writing stack params for fuel system calls, gas calculation for missing memory grow ops, support shared buffer for rwasm calls, fix syncing sp pointer between system calls (@dmitry123)
• deps/build:
  • Update revm, fix alloy deps compilation, fix missing SDK features in tests (@dmitry123, @bfday)
• misc:
  • Fix incorrect input size for metadata create syscall, mark fuzz tests ignored, improve lcov merging, update lcov gen and makefile targets, prevent makefile crash on wasm2wat conversion failure (@dmitry123, @bfday)

🛠 Refactoring

• metadata/contract:
  • Metadata syscalls and fix missing keccak256 native mapping, move contract into one crate, fix eip2935 exit error (@dmitry123)
• erc20/build:
  • Move ERC20 logic to separate crate, optimize code, reproducible docker builds (@bfday, @d1r1)
• ci/infrastructure:
  • Switch runners, update pipeline, submodule fetch, artifact cleanup, increase timeouts, clean space before builds (@dmitry123, @d1r1)

🧹 Chores

• deps/actions:
  • Bump docker/build-push-action, actions/delete-package-versions (@dependabot)
  • Upgrade revm, remove legacy storage and preimage syscalls, derive Default for BlockContextV1, enable wasmtime for e2e tests, rename testing folders, tweak exit/panic interfaces (@dmitry123)

⚡️ Performance

• tests:
  • Replace genesis caches with precompiled data, speeding up e2e test execution by 5–6x (@dmitry123)

What's Changed

• feat(rwasm): migrating rwasm to the latest version by @dmitry123 in #110
• feat(svm): system precompiles for svm support (mvp) by @bfdays in #111
• docs: update broken doc link in storage.md by @JayeTurn in #109
• feat(build): add docker-based reproducible builds with artifact generation by @d1r1 in #112
• feat(new-wasmtime): new rwasm with new wasmtime compiler & executor by @dmitry123 in #118
• ci: clean space before builds by @dmitry123 in #120
• feat(erc20): native wasm-driven universal ERC20 token standard with plugins support by @bfdays in #115
• feat(eip2935): eip2935 implementation by @bfdays in #117
• feat(builtins-fuel): add fuel builtins for imported functions by @xozzslip in #119
• ci: change default runner by @dmitry123 in #124
• feat(genesis-upgrade): add update account code by auth feature by @b33ngo in #116
• chore(deps): bump actions/delete-package-versions from 4 to 5 by @dependabot in #113
• chore(deps): bump docker/build-push-action from 5 to 6 by @dependabot in #114
• feat(metadata): new metadata account storage with ownership model for evm/svm/wasm runtimes by @dmitry123 in #125
• refactor(sdk): change interfaces for exit/panic methods by @dmitry123 in #127
• feat(svm): re-implement svm storage using metadata api by @bfdays in #126
• fix(rwasm): investigating issue with stack overflow by @dmitry123 in #128
• feat(runtime): add method for resetting call id by @xozzslip in #129

New Contributors

• @JayeTurn made their first contribution in #109

Full Changelog: v0.2.1-dev...v0.3.0-dev