February 2026 monthly summary for LedgerHQ/device-sdk-ts: Delivered a key API enhancement focused on output clarity by stringifying trusted-name sources and types in the API output, improving readability and downstream integration. No separate major bugs fixed this month; all efforts centered on feature delivery and code quality improvements.

January 2026 monthly summary highlighting key features delivered, major bugs fixed, overall impact, and technologies demonstrated across two repositories: LedgerHQ/device-sdk-ts and LedgerHQ/clear-signing-erc7730-registry. Focused on delivering business value through scalable signer platforms, secure defaults, and automated testing enhancements.

December 2025 performance highlights: Delivered precise device interaction tracking, modernized core interceptors and API plumbing for cross-environment reliability, expanded wallet policy support, and enhanced testing capabilities across Ledger Live and the device SDKs. This work tightened analytics, improved compatibility, and enabled richer cryptocurrency workflow support.

November 2025 performance summary: Delivered robust device discovery, pairing, and onboarding improvements across Ledger Live and device-sdk-ts, enhancing reliability, security, and user experience. Implemented BLE auto-pairing with MAC address randomization, improved device identification using advertised names, standardized deviceName propagation through onboarding and CLI flows, and expanded testing and code quality initiatives. Also introduced DMK firmware distribution tracking and improved UI messaging, contributing to faster release readiness and decreased post-release support risk. Demonstrated strong cross-repo collaboration with TypeScript/Node.js stacks, BLE communications, secure channel operations, and test automation.

October 2025 highlights: Feature delivery and stability improvements across LedgerHQ repositories, with a focus on release management for ledger-live and robustness enhancements in device-sdk-ts. Key outcomes include streamlined release workflows, accurate token metadata for prefixed tickers, and resilient signing despite optional subcontexts.

September 2025 focused on strengthening security, reliability, and interoperability across LedgerHQ’s device SDK and registry ecosystems. In LedgerHQ/device-sdk-ts, we delivered EIP-712 calldata support with context provisioning, improved signer clarity by reordering APDUs for nested contexts, reinforced reliability through device status polling on GetAppAndVersion with graceful timeout handling, enhanced certificate resolution for Safe proxies, and added Uniswap plugin descriptor loading from CAL to centralize plugin management. In LedgerHQ/clear-signing-erc7730-registry, we launched a Batch Transactions System with a new contract and adjusted BatchExecutor permissions, advanced Safe deployment and EIP-712 descriptor support with multiple descriptor updates, introduced wrapped ETH deposit handling, fixed ERC20 deployment behavior across multiple deployments, added Velora Delta V2 hardware support, introduced multisig proposer messages, and completed registry maintenance to improve readability and maintainability. These efforts deliver tangible business value by tightening security, improving signing reliability, enabling new asset flows, and simplifying long-term maintenance.

August 2025 monthly summary for LedgerHQ development focused on security, interoperability, and maintainability across the device-sdk-ts and registry repositories. Delivered key features, robust crypto capabilities, and API/architecture improvements that reduce risk, speed integration, and improve user trust for authentication and data protection.

July 2025 performance highlights across Ledger Live, ERC-7730 registry, and device SDKs focused on reliability, security, and interoperability. Major work included onboarding robustness and bootloader state handling fixes in Ledger Live, a streamlined app connection flow with pre-metadata checks, and comprehensive Ethereum signer/context module upgrades. In parallel, ERC-7730 embedded calldata enhancements and Safe Proxy/Singleton foundation were advanced, while the device SDK (binders and signer flow) gained dynamic app binding, improved legacy firmware compatibility, and transport framing reliability. These efforts reduce onboarding crashes, prevent unauthorized signing, and lay scalable foundations for expanded interoperability, contract templates, and cross-repo collaboration. Technologies demonstrated include TypeScript/JavaScript, Ethereum signer and context work, embedded calldata specifications, smart contract scaffolding, cryptography practices, and test-driven development.

June 2025 performance summary for LedgerHQ development focusing on delivering reliability in device communications, major bug fixes, and UX improvements across device-sdk-ts and ledger-live. Key architecture changes and testing contributions reduced user-impact risk, while onboarding and versioning work improved customer experience and maintainability.

May 2025 highlights across Ledger Live and device-sdk-ts: delivered reliability improvements in ETH signer, improved device connection sequencing, resilient legacy transport fallbacks, enhanced Ethereum signing with EIP-712 support and ethers upgrade, and standardized skipOpenApp behavior across BTC/Solana and device actions. These changes reduce user friction during signing, improve cross-device UX, and strengthen error handling and compatibility, delivering measurable business value in signing throughput, device compatibility, and developer experience.

April 2025 performance summary: Delivered critical device management capabilities and Ledger Live enhancements, focusing on business value, reliability, and developer productivity. Key outcomes include richer device discovery via GetDeviceMetadata; streamlined multi-app lifecycle with memory-aware InstallOrUpdateApplications and OpenAppWithDependencies; more robust device status and signing flow; and reduced signing friction with a skip-open-app option. Ledger Live improvements unify device-action orchestration with ConnectApp and PrepareConnectManager, and upgrade XState to v5 to improve stability and capabilities. These changes enable faster onboarding, lower support costs, and more predictable signer behavior in complex scenarios across devices and apps.

March 2025 monthly summary for LedgerHQ/device-sdk-ts. Delivered security-focused signing improvements and reliability enhancements across key areas: EIP-712 signing, user-visible chain metadata, Web3Checks opt-in, and device communication. Implemented EIP-712 message checks, support for typed data, and trusted names across multiple EVM chains to strengthen signing security and data integrity while improving user clarity. Rolled out a first-launch Web3Checks opt-in flow and an in-app user interaction path to manage opt-in based on application version and user consent. Enhanced device communication with chunked TLV APDU transfers for large payloads, session readiness synchronization, and improved cross-version compatibility and type safety. Fixed signer-eth test stability by addressing rebase-related failures and tightened test setup. These changes drive reduced signing risk, improved reliability across devices, and faster developer feedback loops for future releases.

February 2025: Focused on security-critical improvements to the Ethereum signing flow in the signer for LedgerHQ/device-sdk-ts. Implemented a targeted state-machine hardening to respect user intent by preventing blind signing when a signature is explicitly rejected, reducing risk of unintended actions and increasing reliability of the signing process across Ethereum workflows.

January 2025 highlights across LedgerHQ/device-sdk-ts, LedgerHQ/ledger-live, and LedgerHQ/clear-signing-erc7730-registry. Delivered cross-repo features that boost external-wallet interoperability, signer UX, and maintainability, while strengthening device reliability and data accuracy. Key architectural refactors and observability enhancements streamline future work and improve debugging. Central themes include Ethereum transaction handling enhancements with JSON signing support, Bitcoin signer UI improvements, Solana signer refactor, device actions observability, Ubuntu HID reliability, and ERC-7730 documentation improvements.

December 2024 monthly summary for LedgerHQ/device-sdk-ts focused on robustness of transaction data parsing. Implemented end-based slice boundaries in the context-module to align with standard array slicing conventions, improving accuracy in parsing transaction data segments and ensuring safer boundaries across parsing flows. Updated type definitions, DTOs, and core parsing logic to support the new end parameter, with targeted refactoring and validation against existing data models. This work reduces off-by-one and boundary errors and strengthens overall data integrity for downstream systems relying on parsed transactions.

Concise monthly summary for 2024-11 focusing on business value and technical achievements across LedgerHQ/device-sdk-ts. Delivered structural improvements to the ContextModule, generic parser support in SignTransaction, and signer enhancements, while stabilizing legacy Ethereum signing flow and fixing integration gaps in the signer-eth app. These changes reduce signing errors, improve data fidelity for diagnostics, and enable smoother adoption of newer Ethereum app versions.

October 2024 (LedgerHQ/device-sdk-ts): Focused on robustness and compatibility of Ethereum signing flows across EIP-712 and legacy transaction formats. Delivered targeted fixes and enhancements to improve reliability, reduce signing errors, and strengthen chain ID/transaction type handling in the device SDK.