Add XEP-3: Petra Execution Layer Upgrade#1
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- Proposes adoption of CapSign-maintained evmos/go-ethereum fork with MCOPY support - Includes comprehensive technical specification and implementation plan - VALIDATED: Successfully tested Diamond proxy contract deployment on local testnet - PROVEN: MCOPY opcode functionality confirmed with complex contract architectures - Ready for community review and network upgrade consideration Addresses critical limitation preventing deployment of modern DeFi protocols including Diamond patterns and advanced contract architectures on XRPL EVM.
- Author: CapSign Protocol Team → CapSign Inc. - Created date: 2025-01-16 → 2025-07-16 (correct date) - Test results date: January 17 → July 16, 2025 - Proof of concept date: January → July 2025 - Documentation URL: docs.capsign.io → docs.capsign.com
- Specify required xrplevm/node go.mod changes - Detail CapSign fork repository dependencies - Outline CI/CD pipeline updates needed - Address validator deployment coordination - Include rollback planning requirements Addresses critical gap in implementation specification.
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This proposal outlines the upgrade of XRPL EVM to support Ethereum's Petra hardfork features, including the critical MCOPY opcode (EIP-5656) that enables modern smart contract patterns like Diamond proxies.