April 2026: Key reliability and security improvements for splice-wallet-kernel. Delivered features for wallet signing with Blockdaemon and new transaction metadata handling, added external transaction ID visibility in UI, hardened JWT audience validation, and stabilized CI/build workflow. These changes improve end-to-end transaction trust, traceability, and deployment stability, supporting faster iteration and compliance. Features and bugs addressed include Blockdaemon signing integration with environment-based API access and insert-only transaction management to prevent overwrites (commits a4119554e6a3808b42af43ee556488665d71070d; f01b4c30ba849f336a512fc5f8d269036a75c7b6), external transaction ID visibility in UI (commit 836bb14bc78a91f51be599fc8694c0ecb23259b5), JWT audience validation hardening (commit 0085bd620578fcc53839d9c59e14061cfd946963), and CI/build workflow stabilization including scripts folder and multi-sync rollback (commit dde93b142ad29df074a9211a9541d20e4f6fdf7c).

Month: 2026-03 — Splice Wallet Kernel delivered focused, business-value improvements across gateway reliability, security, identity, and developer experience. Key features delivered: - Wallet Gateway Routing Stability and URL Handling: added a gateway route href generator utility, centralized routing logic across the wallet gateway and UI components, and path validation to prevent broken or unsafe long URLs, improving UX and reliability. Commit references: 79145b2b275a88b700903343888d1eea48cde6b7; 03e043c2cb3463626371755d56fa1b4c85f6c8a5; dbef231aa8ba312290785b431cc4d81a9d444f26. - OAuth2 PKCE Security Enhancement: enforce PKCE requirements in the OAuth2 flow to strengthen authorization security for both client and server sides. Commit: b67d481c54d5c24f9420914ab6ac9baac43ec4db. - Wallet Allocation Email Identification and Security: extract user email from JWTs and require email for Blockdaemon allocations to improve user identity verification and security. Commits: 7add081e0f52f52759a5573aafe279225b748146; 444f539c550211f54dac62b06b45aad7db398503. - Dapp Async Event Handling and SSE Reliability: allow multiple listeners and associate events with the correct transaction through a command ID check. Commit: f5b44d122e253fbf80b8245f6a453c2495306a4a. - Stability and Ecosystem Upgrades, CI Improvements: upgrade dependencies, align versions across the Canton Network ecosystem, update API specifications, and optimize CI/workflows to improve stability, performance, and developer experience. Commits: 3250bc4aa9e4e65cdbb00ec257ca82c7cfd54c31; e1da31acd9e059312385e3cea2d9165a6c4e3f78; 612fc2343ae34ac9b081e96ead79ebb2a21fa291 (release orchestration and linting); plus numerous related release/patch commits for splice upgrades and tooling. Overall impact and accomplishments: The month yielded tangible, customer-facing improvements in gateway reliability, security posture, identity verification, and developer productivity. Centralizing routing logic reduces long-term maintenance and bug surface in the gateway/UI, PKCE hardens OAuth2 flows, and email-based verification improves onboarding and fraud prevention. Dapp SSE enhancements increase reliability for real-time events in multi-listener scenarios, supporting more robust Dapp experiences. CI and dependency upgrades reduce technical debt, align Canton ecosystem components, and enable faster, safer releases. Technologies/skills demonstrated: TypeScript/JavaScript, JWT handling, PKCE (OAuth2), server-sent events (SSE), route generation utilities, regex/path validation, monorepo governance, linting and CI tooling, dependency management, and cross-repo collaboration across Canton Network components.

February 2026 (Month: 2026-02) highlights the Splice Wallet Kernel’s progress across release governance, real-time ledger integration, UI polish, and infrastructure improvements. The team delivered cross-component versioning and GitHub release automation, introduced real-time WebSocket streaming for ledger events, refined UI/UX in dApps and example apps, and enhanced data models and CI efficiency. These efforts collectively improve deployment velocity, reliability, and business value for Canton Network components.

January 2026 summary for hyperledger-labs/splice-wallet-kernel: Focused on UX reliability, kernel API readiness, and security. Key outcomes include Wallet Gateway UX Enhancements (popup handling, copy button, wallet sync UI, event display, login error messaging, and improved sync flow); Blockdaemon Signing Driver Enhancements (enable user-context signing and added user identifier); Gateway Performance and Configuration (configurable max payload size and higher default rate limit to 10000); Splice Wallet Kernel Upgrade and API Enhancements (new API specs for WebSocket/HTTP and compatibility measures); Party Data Query Accuracy Fix (local-party-only queries for improved data relevance). These changes improve user onboarding, transaction signing reliability, throughput, data accuracy, and maintainability. Supporting work included dependency upgrades, Canton network upgrades, and seroval remediation, plus updated wallet gateway configuration docs.

December 2025 monthly summary focusing on key business value and technical achievements across the splice-wallet-kernel and splice repositories. The period delivered a customer-facing feature, security and reliability improvements, and meaningful API/documentation cleanups that reduce risk and enable faster production releases.

November 2025 (hyperledger-labs/splice-wallet-kernel) focused on delivering robust features, improving data navigation, hardening reliability, and tightening release governance. Notable work included documentation consolidation for topology decoding and preapprovals, API spec upgrades and new JSON Ledger endpoints, a new contract listing pagination, and comprehensive wallet UX enhancements with stronger error handling and serialization safeguards. Security and governance improvements were enabled by JWT scope handling, per-wallet action rights, and a cleanup of API specs. The team also strengthened performance and quality through WIG snippet test coverage and consolidated release notes across Canton projects. Impact: easier integration for DApps, faster data access, and more reliable wallet experiences with lower risk in production releases.

October 2025 monthly performance summary for hyperledger-labs/splice-wallet-kernel: Delivered foundational codebase rename and housekeeping, expanded Wallet SDK capabilities, improved reliability of core ledger interactions, enhanced documentation and release processes, and stabilized UI testing. The work emphasizes business value through clearer project hygiene, better onboarding and access control, reliable contract queries, and robust operations under load.

September 2025 summary focusing on delivering core ledger capabilities, data-query enhancements, wallet SDK improvements, and reliability/ops improvements across the splice-wallet-kernel. The month emphasized strengthening ledger operability, security, and developer experience to accelerate wallet integrations and reduce production risk. The work aligned with the 0.9.x release trajectory and prepared onboarding for upcoming features and integration guides.

August 2025 monthly summary for hyperledger-labs/splice-wallet-kernel focusing on business value and technical achievements.

Month: 2025-07 – concise monthly summary focusing on key accomplishments, major bugs fixed, overall impact, and technologies demonstrated for hyperledger-labs/splice-wallet-kernel.

June 2025 performance highlights focused on establishing a solid foundation for scalable development and ledger integration in the splice-wallet-kernel repository. Work centered on governance, documentation, and architecture modernization to accelerate future feature delivery while improving quality controls.