February 2026 – Cardano Wallet (cardano-wallet) monthly review focusing on ledger API compatibility, CI/CD modernization, and cross-platform resilience. The team delivered ledger-API groundwork, improved dependency alignment, and a suite of tooling upgrades that accelerate release cycles and improve code quality. Key milestones include ledger API adaptation for cardano-ledger-core 1.17+ within wallet-read, a switch to GitHub Actions with parallelized CI, and the adoption of a standalone coin-selection library along with 9.12-era compatibility across platforms.

December 2025 (cardano-wallet): Key platform and performance improvements delivered with a focus on maintainability, compatibility, and accurate performance metrics across configurations. Highlights include Conway hard fork migration, Mithril upgrade with verification-key handling, restoration benchmark UTF-8 fix, Node runtime upgrade, and expanded benchmark history for richer metrics.

May 2025 monthly summary for the cardano-wallet repository focusing on a critical dependency upgrade and stability improvements. Delivered the Cardano Addresses dependency upgrade to 4.0.0 across multiple components, aligning with downstream library changes and enabling access to new features. No major bug fixes were required this month; the focus was on compatibility, risk reduction, and preparing the codebase for upcoming features that depend on cardano-addresses 4.x.

March 2025 highlights for cardano-wallet: Delivered key features and fixes that tighten release reliability, modernize the Cardano Ledger/API surface, strengthen security tooling, and accelerate feedback loops through CI/CD improvements. The work reduced release risk, improved maintainability, and prepared the codebase for upcoming integrations.

February 2025 monthly summary for cardano-wallet: Delivered feature-driven improvements, architecture cleanup, and enhanced release pipelines. Key features include restoration point support for AccountPostData with swagger update, and wallet restoration strategies tested for xpub-backed wallets. Major refactors and setup completed for Cardano deposit wallet, followed by UI modularization and dependency cleanup. Release automation and deployment tooling were hardened via CI/Nix pipeline updates, improved build logging, and isolated docker runs. Additional improvements include a Node runtime upgrade and Hackage/CHAP indices bump to align with upstream dependencies and performance expectations. A deprecation/cleanup effort removed deposit wallet components and related tooling to reduce maintenance surface. This period also delivered broader test coverage and performance-friendly architecture changes to support faster feature delivery and safer rollouts.

January 2025 performance summary: Implemented cross-platform CI enhancements and E2E testing, automated release documentation updates, refined release tagging and maintenance, and enhanced API diffs tooling. These changes reduced release cycle times, improved build reliability, and broadened coverage across Windows, Linux, and macOS environments, while simplifying maintenance and increasing developer velocity.

Monthly performance summary for 2024-12 focused on delivering features with business value, fixing critical bugs, and showcasing technical proficiency across the Cardano Wallet repository.

Month 2024-11 performance summary for cardano-wallet: Delivered business value through feature improvements, reliability work, and CI automation. Key outcomes: - TxHistory and history testing enhancements: added TxHistory specs, roll forward support, and ByCustomer history testing and assertions. - Conway block export: enable exporting Conway block as Block type from Write. - TimedSeq API enhancements: added dropBefore/dropAfter and a tailored semigroup instance. - Pending exchange scenario: enabled end-to-end pending exchange flow. - Deposit wallet improvements: added addresses codec, extracted address rendering into a common lib, mock network environment and funding, and Byron genesis support for network awareness. - Core API and module refactors: API surface cleanup and module refactors across TimedSeq usage, slotsToUTCTimes, REST XPrv management. - Release and CI automation: preprod state updates in CI and automated wallet image tag bumps in release candidate steps. Overall impact: improved reliability, broader test coverage, faster and safer releases, and stronger alignment between wallet and REST interfaces, enabling smoother customer deployments. Technologies/skills demonstrated: functional design and API surface exposure, test-driven development with a robust DSL, REST/UI integration work, and CI/tooling improvements.