Unity-Technologies/InputSystem
Oct 2024 – Feb 2026
13 Months active
Languages Used
C#
Technical Skills
Editor DevelopmentInput SystemUI ToolkitC#Code GenerationDocumentation
Håkan Sidenvall
PROFILE
Håkan Sidenvall
Hakan Sidenvall contributed to the Unity-Technologies/InputSystem repository over 13 months, building and refining core input features and tooling for Unity. He delivered platform-aware input polling, enhanced rebinding UI samples, and introduced performance diagnostics for input debugging. Hakan addressed complex bugs such as asset import reliability, cross-package compatibility, and device disconnect handling, often expanding test coverage to prevent regressions. His work involved C# programming, Unity Editor scripting, and CI/CD integration, with a focus on maintainability and cross-version compatibility. Through targeted refactoring, documentation improvements, and robust unit testing, Hakan consistently improved reliability, developer experience, and runtime performance for Unity projects.
Overall Statistics
Feature vs Bugs
43%Features
Repository Contributions
26Total
Bugs
13
Commits
26
Features
10
Lines of code
29,336
Activity Months13
Your Network
237 peopleWork History
February 2026
1 Commits
Feb 1, 2026February 2026 monthly summary for Unity-Technologies/InputSystem: Delivered stability enhancements to the Input System; fixed a critical bug affecting enabling InputActionMaps when devices disconnect/reconnect, and expanded test coverage to prevent regressions. These changes improve reliability across input devices and reduce user-facing crashes, enabling smoother gameplay experiences.
1 Commits
Feb 1, 2026February 2026 monthly summary for Unity-Technologies/InputSystem: Delivered stability enhancements to the Input System; fixed a critical bug affecting enabling InputActionMaps when devices disconnect/reconnect, and expanded test coverage to prevent regressions. These changes improve reliability across input devices and reduce user-facing crashes, enabling smoother gameplay experiences.
February 2026
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025: Unity Input System delivered reliability and performance improvements. Fixed non-deterministic import of .inputaction assets to prevent asset corruption or Unity hangs, adding checks to ensure action maps do not share names with parent assets during C# script generation. Implemented deferred auto-registration of processors, interactions, and binding types to reduce memory allocations from reflective introspection, boosting runtime performance and memory efficiency. These changes enhance asset import reliability, reduce memory pressure, and improve startup and runtime performance for projects relying on the Input System. Commit references and ISXB tickets noted.
November 2025
2 Commits • 1 Features
Nov 1, 2025November 2025: Unity Input System delivered reliability and performance improvements. Fixed non-deterministic import of .inputaction assets to prevent asset corruption or Unity hangs, adding checks to ensure action maps do not share names with parent assets during C# script generation. Implemented deferred auto-registration of processors, interactions, and binding types to reduce memory allocations from reflective introspection, boosting runtime performance and memory efficiency. These changes enhance asset import reliability, reduce memory pressure, and improve startup and runtime performance for projects relying on the Input System. Commit references and ISXB tickets noted.
October 2025
5 Commits • 2 Features
Oct 1, 2025October 2025 monthly summary for Unity-Technologies/InputSystem: Focused on stabilizing core input workflows, expanding QA tooling, and enhancing UI customization. Delivered targeted features with a strong emphasis on reliability, test coverage, and developer experience to accelerate iteration and reduce risk across Unity version compatibility.
5 Commits • 2 Features
Oct 1, 2025October 2025 monthly summary for Unity-Technologies/InputSystem: Focused on stabilizing core input workflows, expanding QA tooling, and enhancing UI customization. Delivered targeted features with a strong emphasis on reliability, test coverage, and developer experience to accelerate iteration and reduce risk across Unity version compatibility.
October 2025
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for Unity-Technologies/InputSystem: Stability and backward-compatibility improvement addressing a critical edge-case in Keyboard input handling. Implemented fix for null KeyControl in deprecated Key.IMESelected during enumeration of Keyboard.allKeys, preserving backward compatibility while guiding migration away from deprecated usage. Added comprehensive tests validating keyboard key lookups and enumeration to prevent regressions. Resulting changes reduce runtime exceptions, improve reliability across platforms, and strengthen maintainability of the Input System.
September 2025
1 Commits
Sep 1, 2025September 2025 monthly summary for Unity-Technologies/InputSystem: Stability and backward-compatibility improvement addressing a critical edge-case in Keyboard input handling. Implemented fix for null KeyControl in deprecated Key.IMESelected during enumeration of Keyboard.allKeys, preserving backward compatibility while guiding migration away from deprecated usage. Added comprehensive tests validating keyboard key lookups and enumeration to prevent regressions. Resulting changes reduce runtime exceptions, improve reliability across platforms, and strengthen maintainability of the Input System.
August 2025
2 Commits • 2 Features
Aug 1, 2025Concise monthly summary for August 2025: Platform-aware Input polling frequency feature implemented in Unity InputSystem to reduce latency and improve cross-platform compatibility; rebinding sample enhancements with dynamic labels and robust rebinding logic plus fixes for action propagation and UI display after scene reloads; overall impact: improved input responsiveness, stability, and developer experience; technologies demonstrated: platform-specific polling, feature flags, enhanced samples, and cross-version compatibility.
2 Commits • 2 Features
Aug 1, 2025Concise monthly summary for August 2025: Platform-aware Input polling frequency feature implemented in Unity InputSystem to reduce latency and improve cross-platform compatibility; rebinding sample enhancements with dynamic labels and robust rebinding logic plus fixes for action propagation and UI display after scene reloads; overall impact: improved input responsiveness, stability, and developer experience; technologies demonstrated: platform-specific polling, feature flags, enhanced samples, and cross-version compatibility.
August 2025
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for Unity Input System: - Key features delivered and major bugs fixed, with a focus on business value and code quality. - Notable work includes a targeted internal refactor to centralize runtime state checks and a fix to stabilize UI tests for InputActionsEditor. - Impact spans improved CI reliability, maintainability, and developer velocity.
June 2025
2 Commits • 1 Features
Jun 1, 2025June 2025 monthly summary for Unity Input System: - Key features delivered and major bugs fixed, with a focus on business value and code quality. - Notable work includes a targeted internal refactor to centralize runtime state checks and a fix to stabilize UI tests for InputActionsEditor. - Impact spans improved CI reliability, maintainability, and developer velocity.
April 2025
1 Commits
Apr 1, 2025April 2025 monthly summary for Unity-Technologies/InputSystem. Focused on reliability and discoverability of action names in the Input System. Delivered a targeted bug fix to FindAction to support actions whose names contain slashes, addressing developer and user reports and preventing hidden breakages in action lookup. Added comprehensive tests to validate slash-containing action names and guard against regressions. Resulted in a more robust InputActionAsset and improved developer confidence for action-based workflows.
1 Commits
Apr 1, 2025April 2025 monthly summary for Unity-Technologies/InputSystem. Focused on reliability and discoverability of action names in the Input System. Delivered a targeted bug fix to FindAction to support actions whose names contain slashes, addressing developer and user reports and preventing hidden breakages in action lookup. Added comprehensive tests to validate slash-containing action names and guard against regressions. Resulted in a more robust InputActionAsset and improved developer confidence for action-based workflows.
April 2025
March 2025
2 Commits • 1 Features
Mar 1, 2025March 2025: Delivered reliability enhancements for XR input and introduced quantitative performance diagnostics in the Input System. The work focused on two major areas: stabilizing TrackedPoseDriver behavior when XR tracking is unavailable, and expanding the Input Debugger with achievable frequency and latency metrics to accelerate debugging and optimization of input pipelines.
March 2025
2 Commits • 1 Features
Mar 1, 2025March 2025: Delivered reliability enhancements for XR input and introduced quantitative performance diagnostics in the Input System. The work focused on two major areas: stabilizing TrackedPoseDriver behavior when XR tracking is unavailable, and expanding the Input Debugger with achievable frequency and latency metrics to accelerate debugging and optimization of input pipelines.
February 2025
1 Commits
Feb 1, 2025February 2025: Key reliability improvement in Unity Input System. Implemented real-time synchronization between the Parameter Editor and Input Settings, ensuring the editor reflects changes to Input Settings automatically and refreshes values via new callbacks. This reduces manual refresh needs and prevents misalignment between editor state and runtime configuration.
1 Commits
Feb 1, 2025February 2025: Key reliability improvement in Unity Input System. Implemented real-time synchronization between the Parameter Editor and Input Settings, ensuring the editor reflects changes to Input Settings automatically and refreshes values via new callbacks. This reduces manual refresh needs and prevents misalignment between editor state and runtime configuration.
February 2025
January 2025
1 Commits
Jan 1, 2025January 2025 — Unity-Technologies/InputSystem: Delivered a critical compatibility patch to ensure Input System works smoothly with Addressables across Unity editor versions and platforms. The fix resolves a compilation error caused by an undefined IInputAnalytic.TryGatherData when Addressables and Input System are used together by gating the code with conditional compilation. This change prevents build failures, stabilizes cross-package integration, and reduces downstream troubleshooting for developers.
January 2025
1 Commits
Jan 1, 2025January 2025 — Unity-Technologies/InputSystem: Delivered a critical compatibility patch to ensure Input System works smoothly with Addressables across Unity editor versions and platforms. The fix resolves a compilation error caused by an undefined IInputAnalytic.TryGatherData when Addressables and Input System are used together by gating the code with conditional compilation. This change prevents build failures, stabilizes cross-package integration, and reduces downstream troubleshooting for developers.
December 2024
4 Commits • 1 Features
Dec 1, 2024December 2024: Focused on improving developer experience and CI reliability for the Unity Input System. Delivered targeted documentation enhancements and a CI stability fix that reduces asset reimport-related build failures, contributing to faster onboarding, smoother releases, and higher maintainability of the InputSystem repo.
4 Commits • 1 Features
Dec 1, 2024December 2024: Focused on improving developer experience and CI reliability for the Unity Input System. Delivered targeted documentation enhancements and a CI stability fix that reduces asset reimport-related build failures, contributing to faster onboarding, smoother releases, and higher maintainability of the InputSystem repo.
December 2024
November 2024
3 Commits • 2 Features
Nov 1, 2024November 2024 monthly performance summary for Unity InputSystem. Focused on enhancing developer experience, improving sample robustness, and cleaning CI/test surfaces. Delivered auto-generated XML documentation for source-generated C# classes produced from input action assets, and enhanced the GamepadVisualizer sample to reflect the active device and handle device disconnects more gracefully. Completed targeted test suite cleanup to resolve a compile-time warning by removing a duplicate using statement.
November 2024
3 Commits • 2 Features
Nov 1, 2024November 2024 monthly performance summary for Unity InputSystem. Focused on enhancing developer experience, improving sample robustness, and cleaning CI/test surfaces. Delivered auto-generated XML documentation for source-generated C# classes produced from input action assets, and enhanced the GamepadVisualizer sample to reflect the active device and handle device disconnects more gracefully. Completed targeted test suite cleanup to resolve a compile-time warning by removing a duplicate using statement.
October 2024
1 Commits
Oct 1, 2024In Oct 2024, the InputSystem work focused on stabilizing the Input Action Editor UX by addressing a right-click context menu issue and ensuring consistent context menu behavior. No new features were shipped this month; the emphasis was on reliability and UX polish for editor actions.
1 Commits
Oct 1, 2024In Oct 2024, the InputSystem work focused on stabilizing the Input Action Editor UX by addressing a right-click context menu issue and ensuring consistent context menu behavior. No new features were shipped this month; the emphasis was on reliability and UX polish for editor actions.
October 2024
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Quality Metrics
Correctness93.4%
Maintainability87.0%
Architecture86.6%
Performance86.2%
AI Usage22.4%
Skills & Technologies
Programming Languages
C#
Technical Skills
API DesignAsset ManagementBug FixingC#C# programmingCI/CDCode GenerationCompiler WarningsConditional CompilationDebugging ToolsDocumentationEditor DevelopmentEditor ScriptingGame DevelopmentInput System
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