This month delivered cross-repo improvements across Uno extensions and core Uno components, stabilizing CI, and advancing cross-version and NativeAOT readiness. The work enhances platform portability, build reliability, and alignment with newer runtimes, enabling faster, safer releases across the Uno Platform stack.

September 2025 highlights: Across unoplatform/uno and dotnet/android, delivered cross-repo platform readiness, licensing compliance, and API surface enhancements. Uno delivered a Platform Compatibility Upgrade to .NET 10 RC1 with deprecation warnings resolved and IL2122 errors addressed, while preserving compatibility with .NET 9/10 RC1. API qualification checks were updated to include Uno assembly names for type qualification. In addition, a Licensing and NativeAOT upgrade migrated tests and configurations from FluentAssertions to AwesomeAssertions to address licensing constraints and improve NativeAOT compatibility. On dotnet/android, Android API 36.1 support was added to Mono.Android bindings, including public API updates and enumification of new APIs, with build robustness improvements. Key commits include UNO: 9d98ac7216f8020621bbd245fc62032f4e3cf21e; AwesomeAssertions migration: 80c070561a3590672851bd85f3a2018ff5d18e97; Android bindings: 35d471e71c986c302dbf019e5c7838e57d3e0a3e, ce1717f7757535759f905e4993cff77a0c2ce7ce, d974c799bb11a77ae5689cf6542c1fcf58a2c1f9. Overall impact: improved platform readiness for modern runtimes, reduced licensing risk, and extended Android API support, enabling faster feature delivery and more reliable builds. Technologies/skills demonstrated: .NET 10 RC1 readiness, IL2122 remediation, API qualification, AwesomeAssertions migration, Mono.Android bindings, Android API-36.1 enumification, and build configuration optimization.

August 2025 top-line: delivered key features and stability across Uno Platform repos, completed significant documentation and tooling improvements, and advanced .NET migration readiness. Actions focused on business value through stable builds, clearer docs for onboarding, and modernization of the platform/tooling stack to accelerate future work.

July 2025 performance summary: Highlights include observability improvements and CI reliability across dotnet/android and unoplatform/uno. Key changes include improving abort logging to include function name during fatal errors using std::format-style formatting, enhancing post-mortem analysis. CI updates aligned Android-native tests with .NET 9 to diagnose Uno test failures and reduce framework-related build/test gaps. These changes improve diagnostics, reduce mean time to resolution for crashes, and strengthen cross-platform testing parity.

June 2025 monthly summary for the dotnet/android repository focusing on key features and impact. The main deliverable this month was comprehensive documentation of exception handling semantics for Xamarin.Android, clarifying cross-runtime behavior between Java and .NET runtimes, including debugger-attached vs. non-attached scenarios, stack walking, and first/last-chance notifications that affect interop reliability.

Summary for 2025-05: Delivered stability-focused Android NativeAOT runtime improvements through two targeted bug fixes, improving multi-thread Java interop reliability and crash resilience. These changes reduce user-facing crashes and enhance app stability across devices.

April 2025: Focused on delivering robust Android NativeAOT capabilities and improving Android app lifecycle reliability in the dotnet/android repository. Key outcomes include enhanced crash visibility via unhandled exception logging, enabling AppDomain.UnhandledException, and a race-condition fix in Java.Interop Replaceable handling to prevent duplicate app instances.

March 2025 monthly summary focusing on key accomplishments in the dotnet/android repository. Highlights include delivery of updated Java.Interop and Android tooling interoperability, stabilization of CoreCLR JNI value management for dotnet maui -sc, and overall improvements to Android interop reliability and build readiness.

February 2025 (Month: 2025-02) focused on strengthening .NET/Java interoperability, stabilizing Android builds, and enhancing diagnostics for faster debugging and triage. Key work included consolidating Java.Interop and interop tooling updates with dependency bumps and TryCreatePeer integration to improve cross-language call reliability and build robustness. Delivered an Android install fix to support higher target SDKs, removing explicit uses-sdk to prevent Play Protect blocking on HelloWorld. Introduced JNI logging diagnostics via DiagnosticSettings to manage JNI reference logging, adjust verbosity through system properties, and redirect logs to files for startup timing analysis. These efforts reduced interop friction, improved device compatibility, and accelerated debugging and release readiness.

January 2025 (dotnet/android): Focused on stabilizing macOS OpenJDK provisioning, enabling JDK 21 compatibility, and modernizing Java.Interop to lay groundwork for Native AOT. Delivered fixes and tooling upgrades that reduce build/run failures, improve reliability, and set the stage for faster release cycles.

Monthly summary for 2024-12 focusing on the dotnet/android repository. Deliveries centered on tooling improvements for dependency management, targeted interop refactors to reduce runtime trimming risk, and strengthening build-time validation capabilities.

November 2024 performance summary for dotnet/android: delivered key features and stability improvements across Mono.Android and Java.Interop to strengthen production diagnostics and runtime reliability. Highlights include enhanced GC bridge logging for Mono.Android (with stack traces, GC events, and production logging in Release builds), a fix for incorrect ordering of generated type mappings to prevent Android runtime crashes (typemap generation update and tests), and Java.Interop debugging enhancement to include JniIdentityHashCode in ObjectDisposedException for more precise disposal diagnostics. These changes improve production observability, reduce debugging time, and increase runtime stability for Android apps built on Mono and Java interop.