May 2025 monthly summary: Delivered derivation path support for private key import and address derivation in wallet-core, enabling per-derivation key management and addressing interoperability across raw and encoded formats.

April 2025 monthly summary for xuelongqy/wallet-core focusing on delivering core capabilities and improving stability. Key highlights include flexible UserOpV07 serialization, multi-coin encoded private key import, and significant project maintenance to upgrade dependencies and CI tooling, which collectively enhance developer experience, security, and platform compatibility.

March 2025 monthly summary for xuelongqy/wallet-core. Focused on security, ERC-4337 readiness, and interop improvements. Delivered private key management enhancements with explicit curve support and wallet import, added EIP-7702 authorization and UserOperation v0.7 support with cross-language tests, and extended Rust↔C++ FFI generator for complex types, along with expanded Kotlin/Swift/C++ test coverage. Business value includes stronger keystore security, faster integration for ERC-4337, and robust multi-language interoperability across the stack.

February 2025 (Month: 2025-02) highlights for xuelongqy/wallet-core: delivered significant cross-language and transaction capabilities, improved build stability on iOS, and modernized FFI tooling to boost interoperability and developer productivity. Key features and fixes span raw JSON transaction handling for Sui, Cardano vote delegation in the transaction builder, and expanded FFI generation with broader type support; plus targeted iOS header binding path fixes for smoother packaging.

January 2025 (Month: 2025-01) summary for xuelongqy/wallet-core: Three major deliverables focused on improving Aptos transaction capabilities, enhancing cross-language integration, and hardening configuration resilience. Key outcomes include ABI signing and fungible asset transfers support in Aptos transactions, automated C++ bindings generation from Rust FFI, and graceful handling of invalid YAML config to prevent crashes. These work items collectively improve transaction correctness, developer productivity, and system resilience, delivering measurable business value.

November 2024: Delivered critical cross-chain migration enablement and runtime correctness improvements in clangenb/polkadot-sdk. Key feature: BlockNumberProvider implemented across multisig, proxy, and NFT pallets to allow dynamic selection of the block-number source and seamless migration between relay chains and parachains, defaulting to the system pallet when no provider is configured. Major bug fix: corrected runtime macro cfg attribute parsing and updated to the new #[runtime::runtime] syntax, enhancing structure, testability, and respecting conditional compilation. Resulting impact: reduced migration friction, improved cross-chain compatibility, and stronger maintainability. Skills demonstrated: Rust, Substrate runtime macros, cfg attributes, macro-driven runtime configuration, and cross-chain integration planning.