mdn/browser-compat-data
Oct 2024 – Sep 2025
10 Months active
Languages Used
JSONYAMLJavaScriptMarkdown
Technical Skills
AccessibilityBrowser CompatibilityBrowser Compatibility DataCSSWeb StandardsCI/CD
Daniel D. Beck
PROFILE
Daniel D. Beck
Daniel contributed to the mdn/browser-compat-data repository by delivering browser compatibility data updates, policy management improvements, and documentation enhancements. He focused on aligning compatibility data with evolving web standards, using JavaScript and JSON to ensure accuracy and maintainability. Daniel implemented feature flagging for experimental APIs, improved CI/CD workflows with GitHub Actions, and clarified guidelines to streamline onboarding and reduce support overhead. His work included deprecating outdated features, consolidating CSS data structures, and updating API policy documentation to reflect current browser behavior. Through careful data curation and technical writing, Daniel improved data quality, reliability, and downstream developer experience across the project.
Overall Statistics
Feature vs Bugs
58%Features
Repository Contributions
41Total
Bugs
13
Commits
41
Features
18
Lines of code
2,575
Activity Months10
Work History
September 2025
1 Commits • 1 Features
Sep 1, 2025Month: 2025-09. Focused improvement in the mdn/browser-compat-data project by clarifying the browser removal guidelines. Removed mentions of null or true values and clarified that poor data coverage is the primary concern, resulting in clearer, more consistent criteria for removing a browser from the dataset. This change reduces ambiguity for maintainers and improves data quality, enabling more reliable maintenance decisions and downstream data consumers. Commit 636e3d318560147c50db71579a113a42518b34f4 (#27797) ties this work to a tracked issue.
1 Commits • 1 Features
Sep 1, 2025Month: 2025-09. Focused improvement in the mdn/browser-compat-data project by clarifying the browser removal guidelines. Removed mentions of null or true values and clarified that poor data coverage is the primary concern, resulting in clearer, more consistent criteria for removing a browser from the dataset. This change reduces ambiguity for maintainers and improves data quality, enabling more reliable maintenance decisions and downstream data consumers. Commit 636e3d318560147c50db71579a113a42518b34f4 (#27797) ties this work to a tracked issue.
September 2025
August 2025
5 Commits • 2 Features
Aug 1, 2025August 2025 monthly summary for mdn/browser-compat-data focusing on delivering documentation clarity, data guidelines, and data cleanup to improve developer guidance and data consistency. The work emphasizes business value by reducing onboarding time, lowering support overhead, and aligning data with browser behavior and specifications.
August 2025
5 Commits • 2 Features
Aug 1, 2025August 2025 monthly summary for mdn/browser-compat-data focusing on delivering documentation clarity, data guidelines, and data cleanup to improve developer guidance and data consistency. The work emphasizes business value by reducing onboarding time, lowering support overhead, and aligning data with browser behavior and specifications.
July 2025
3 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for the mdn/browser-compat-data repository focused on delivering feature flag-driven accessibility for Edge-specific Permissions Policy and improving documentation and data guidelines to enhance downstream automation and release traceability.
3 Commits • 2 Features
Jul 1, 2025July 2025 monthly summary for the mdn/browser-compat-data repository focused on delivering feature flag-driven accessibility for Edge-specific Permissions Policy and improving documentation and data guidelines to enhance downstream automation and release traceability.
July 2025
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary for mdn/browser-compat-data: Delivered a critical policy data fix to improve web API compatibility information. Deprecated Feature-Policy in favor of documenting Permissions-Policy as its replacement and separated the two headers to reflect current policy usage. This alignment reduces developer confusion and ensures the data mirrors modern policy implementations across browsers.
June 2025
1 Commits
Jun 1, 2025June 2025 monthly summary for mdn/browser-compat-data: Delivered a critical policy data fix to improve web API compatibility information. Deprecated Feature-Policy in favor of documenting Permissions-Policy as its replacement and separated the two headers to reflect current policy usage. This alignment reduces developer confusion and ensures the data mirrors modern policy implementations across browsers.
May 2025
2 Commits • 1 Features
May 1, 2025May 2025 monthly summary for the mdn/browser-compat-data repository focused on CSS compatibility data enhancements and cleanup. Delivered a cleaner, more accurate data model for CSS properties by consolidating the accent-color.maintains_contrast data under its parent, expanding coverage with font-width attributes, and clarifying deprecation/non-standard status. Updated the JSON to reflect current browser compatibility and improved maintainability for future data updates. The work reduces data fragmentation, improves developer confidence in compatibility data, and accelerates downstream feature work that relies on accurate CSS data.
2 Commits • 1 Features
May 1, 2025May 2025 monthly summary for the mdn/browser-compat-data repository focused on CSS compatibility data enhancements and cleanup. Delivered a cleaner, more accurate data model for CSS properties by consolidating the accent-color.maintains_contrast data under its parent, expanding coverage with font-width attributes, and clarifying deprecation/non-standard status. Updated the JSON to reflect current browser compatibility and improved maintainability for future data updates. The work reduces data fragmentation, improves developer confidence in compatibility data, and accelerates downstream feature work that relies on accurate CSS data.
May 2025
February 2025
9 Commits • 3 Features
Feb 1, 2025February 2025: Focused on data accuracy, standardization readiness, and controlled feature rollout in mdn/browser-compat-data. Delivered three new capability items (HTML area.attributionsrc, Magnetometer API behind a feature flag, import() standard-tracked features with specs) and executed ongoing data quality improvements (text-edge cleanup, accessibility-events permission status update). These efforts enhance reliability of browser compatibility data for developers, reduce noise in reports, and align data with current Chrome and standards trajectories. Key outcomes include improved data fidelity, safer exposure of experimental APIs, and clearer status signaling for deprecated or non-standard features.
February 2025
9 Commits • 3 Features
Feb 1, 2025February 2025: Focused on data accuracy, standardization readiness, and controlled feature rollout in mdn/browser-compat-data. Delivered three new capability items (HTML area.attributionsrc, Magnetometer API behind a feature flag, import() standard-tracked features with specs) and executed ongoing data quality improvements (text-edge cleanup, accessibility-events permission status update). These efforts enhance reliability of browser compatibility data for developers, reduce noise in reports, and align data with current Chrome and standards trajectories. Key outcomes include improved data fidelity, safer exposure of experimental APIs, and clearer status signaling for deprecated or non-standard features.
January 2025
9 Commits • 5 Features
Jan 1, 2025Concise monthly summary for 2025-01 for mdn/browser-compat-data focused on data quality, cross-browser compatibility, and deprecation cleanup. Delivered key compatibility updates and alignment with standards to support developers with accurate, actionable data and reduce downstream maintenance.
9 Commits • 5 Features
Jan 1, 2025Concise monthly summary for 2025-01 for mdn/browser-compat-data focused on data quality, cross-browser compatibility, and deprecation cleanup. Delivered key compatibility updates and alignment with standards to support developers with accurate, actionable data and reduce downstream maintenance.
January 2025
December 2024
3 Commits • 1 Features
Dec 1, 2024December 2024 (2024-12) monthly summary for the mdn/browser-compat-data project focusing on delivering business value through accurate browser compatibility data and reliable CI operations.
December 2024
3 Commits • 1 Features
Dec 1, 2024December 2024 (2024-12) monthly summary for the mdn/browser-compat-data project focusing on delivering business value through accurate browser compatibility data and reliable CI operations.
November 2024
4 Commits • 2 Features
Nov 1, 2024November 2024 performance summary for mdn/browser-compat-data: Delivered three high-impact changes focusing on release reliability, codebase maintainability, and API/standards alignment. Implemented a fork-safe release workflow guard to prevent forks from triggering releases, removed fictitious CSS types to simplify the codebase, and aligned data maintenance with WHATWG guidance by removing the deprecated webnn tag and deprecating api.Document.createEvent. These efforts reduce release risk, streamline maintenance, and improve forward compatibility while preserving business value for data consumers.
4 Commits • 2 Features
Nov 1, 2024November 2024 performance summary for mdn/browser-compat-data: Delivered three high-impact changes focusing on release reliability, codebase maintainability, and API/standards alignment. Implemented a fork-safe release workflow guard to prevent forks from triggering releases, removed fictitious CSS types to simplify the codebase, and aligned data maintenance with WHATWG guidance by removing the deprecated webnn tag and deprecating api.Document.createEvent. These efforts reduce release risk, streamline maintenance, and improve forward compatibility while preserving business value for data consumers.
November 2024
October 2024
4 Commits • 1 Features
Oct 1, 2024Month: 2024-10 — In the mdn/browser-compat-data project, delivered targeted browser data updates that improve accuracy, accessibility, and reliability. Key changes include Safari 15.4 compatibility fixes (reinstating api.{Worker,}Navigator.hardwareConcurrency) and removal of unsupported languagechange_event on Safari iOS; accessibility improvements for focusable elements using display: contents; and data accuracy updates for EdgeHTML support of css.properties.column-width.auto. These updates reduce developer guesswork and align the dataset with actual browser capabilities, strengthening feature status computations and downstream tooling.
October 2024
4 Commits • 1 Features
Oct 1, 2024Month: 2024-10 — In the mdn/browser-compat-data project, delivered targeted browser data updates that improve accuracy, accessibility, and reliability. Key changes include Safari 15.4 compatibility fixes (reinstating api.{Worker,}Navigator.hardwareConcurrency) and removal of unsupported languagechange_event on Safari iOS; accessibility improvements for focusable elements using display: contents; and data accuracy updates for EdgeHTML support of css.properties.column-width.auto. These updates reduce developer guesswork and align the dataset with actual browser capabilities, strengthening feature status computations and downstream tooling.
Activity
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Quality Metrics
Correctness99.6%
Maintainability99.6%
Architecture99.6%
Performance99.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
JSONJavaScriptMarkdownYAML
Technical Skills
API DevelopmentAPI Policy ManagementAccessibilityBrowser CompatibilityBrowser Compatibility DataBrowser Compatibility Data ManagementBrowser DevelopmentCI/CDCSSData CurationData MaintenanceData ManagementData OrganizationDocumentationECMAScript
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline