Walnut v0.9– Weekly Snapshot (2026-01-02)

This week’s release brings UI improvements to the function call viewer and the error component.

Closed Issues

• UI Improvements for function call viewer #119
• Error component improvements #115

Walnut v0.8– Weekly Snapshot (2025-12-26)

This week’s release focuses on security upgrades, cleaner UI, and improved EVM transaction search and simulation experience.

Closed Issues

• Security upgrade of js-yaml and glob #117
• No longer displaying class hashes on EVM contract pages #110
• Removed numeric transaction version from Simulation from #97
• Improve transaction search by making it more responsive #90

Walnut v0.7– Weekly Snapshot (2025-12-19)

This week’s release introduces API-based simulation. We’re also excited to include our first external community contribution — an improved README, thanks to @crStiv.

Closed Issues

• Normalize EVM addresses to prevent transaction failures caused by lowercase/uppercase mismatches #108
• Fixed error message parsing by removing unexpected null characters #107
• Simulation API #55

Walnut v0.6– Weekly Snapshot (2025-12-12)

This week’s release brings improved transaction and mobile displays, support for Arbitrum, Bob, and Unichain networks, enhanced re-simulation and error handling.

Closed Issues

• Improved Mobile display for Transaction Details and Calldata #96
• Added support for the Arbitrum, Bob and Unichain- #89
• Re-simulate action works when simulation errors occur - #88
• Transaction Header now remains visible in error states - #87
• Fixed a bug causing verified contracts to appear as unverified.- #81

Walnut v0.5– Weekly Snapshot (2025-12-05)

This week’s release brings network support improvements, better error handling, stability updates, and a fix for misidentified verified contracts.

Closed Issues

• Added support for the Citrea Testnet - #86
• Improve RPC error mapping and display - #85
• Increase timeout on the soldb side - #83
• Fixed a bug causing verified contracts to appear as unverified.- #81

Walnut v0.4– Weekly Snapshot (2025-11-28)

This week’s release brings several UI improvements, bug fixes across the debugger and re-simulation flow, along with new additions to the simulation form — the value and transaction index fields.

Closed Issues

• Improve mobile UI tabs - #80
• Fixed bug to show full tx hash in re-simulate page - #79
• Fixed blinking when switching theme - #74
• Fixed a bug for Simulate transaction button - #71
• Fixed Debugger tab UI broken - #68

Walnut v0.3 – Weekly Snapshot (2025-11-21)

Walnut v0.3 – Weekly Snapshot (2025-11-21)

This week’s release focuses on the new Contract page and introduces clearer verification and network information.

Closed Issues

Improve network chip UI on search - #65
Add Verification chip - #64
Remove "Add Custom networks" - #62
Added Contract page - #53

Walnut v0.2 – Weekly Snapshot (2025-11-14)

Walnut v0.2 – Weekly Snapshot (2025-11-14)

This update brings enhancements across the Error UI, simulation reliability, and documentation.

Closed Issues

• Fixed “Unexpected error to Error“ - #63
• Fixed “[FEATURE] Improve Error Page UI” - #61
• Fixed “[BUG] Improve timeout error UI” - #58
• Fixed “Simulating transaction not working” - #45
• Fixed “Update Docs with EVM Walnut verification” -#52

Walnut v0.1 – Weekly Snapshot (2025-11-07)

Walnut v0.1 – Weekly Snapshot (2025-11-07)

We are pleased to announce the first public release of Walnut, an open-source, self-hostable transaction debugger and simulator for the Ethereum ecosystem.

This release includes full transaction traces, simulations, and support for enums.

Walnut is built for rollups, developers, and enterprises that require transparent, privacy-first debugging and simulation of EVM transactions.

Closed Issues

• Fixed “Re-simulating transaction not functional” — #44
• Fixed “Adding custom networks triggers HTTP 500” — #43
• Fixed “Calldata gets populated as placeholder instead of actual value” — #5
• Fixed “Example transaction link has an incorrect RPC URL hardcoded” — #2