Changelog

Fixed critical issue where changing color themes would break the Sankey diagram. The theme selector now works seamlessly, allowing users to switch between McKinsey, BCG, Bain, and Classic D3 color palettes without errors.

Enhanced the underlying D3 Sankey layout configuration to use index-based node identification, improving compatibility with the data parsing system and preventing 'missing node' errors.

Added comprehensive error handling and debugging logs to the Sankey diagram component to help identify and resolve rendering issues more quickly.

Launched a new AI assistant that analyzes project descriptions and recommends the best testing methods from 40+ quantitative and qualitative approaches. Features strategic timeline planning and constraint handling.

Added a complete database of 40 testing methods with relevance scoring, filtering, and detailed descriptions. Users can now see all available methods and understand why specific ones are recommended.

Added toggle for scenarios where traditional A/B testing isn't possible (like Netflix content testing). The AI adapts recommendations to focus on alternative methods like time-based comparisons and qualitative research.

Method Assistant now provides 3-phase testing strategies: Before Launch (research/validation), At Launch (experiments/rollout), and After Launch (monitoring/impact analysis).

Completely redesigned the Maximum Experiments Calculator to match the visual consistency of other calculators with proper styling and layout.

Added 'How to Use This Calculator', 'Key Terms and Definitions', and FAQ sections to the Maximum Experiments Calculator, matching the design pattern of other tools.

Resolved critical styling differences between development and production environments that were causing calculators to appear unstyled in production.

Standardized the design system across all calculators to ensure consistent user experience and visual hierarchy.

Removed beta badges from all navigation items as features have matured and stabilized.

Added a new calculator to determine the maximum number of experiments that can be run given a certain budget and cost per experiment.

Improved the user interface and user experience across all calculators with better spacing and visual hierarchy.

Fixed various mobile responsiveness issues across different screen sizes.

Implemented complete user authentication with Supabase including login, signup, and profile management.

Added protected routes for premium features and user-specific content.

Improved the performance of all calculators with better state management and reduced re-renders.

Added detailed documentation section with guides, API references, and best practices.

Implemented real-time API status monitoring and health checks.

Enhanced error handling across all components with better user feedback.

Introduced Bayesian statistical approach for A/B test analysis with probability distributions.

Added visual probability distribution charts for Bayesian analysis.

Enhanced statistical calculations with more precise algorithms and edge case handling.

Added waterfall chart visualization tool for conversion funnel analysis.

Implemented Sankey diagram generator for user flow visualization.

Enhanced all charts and graphs with better interactivity and customization options.

Added ability to import test data from CSV files for analysis.

Implemented export functionality for results in multiple formats (CSV, PDF, JSON).

Enhanced input validation with better error messages and real-time feedback.

Implemented system-wide dark mode with automatic theme detection.

Improved accessibility with better keyboard navigation, ARIA labels, and screen reader support.

Fixed compatibility issues with Safari and older browser versions.

Major redesign with modern UI components, improved navigation, and better user experience.

Added support for sequential testing, multiple comparison corrections, and advanced power analysis.

Completely rebuilt with Next.js 14 and React 18 for better performance and developer experience.

Added calculator to estimate revenue impact of A/B test results.

Implemented specialized calculator for e-commerce AOV testing.

Enhanced mobile responsiveness and touch interactions.

Added tool to calculate optimal test duration based on traffic and effect size.

Implemented seasonality factors for more accurate duration calculations.

Enhanced statistical calculations with better handling of edge cases.

Added interactive charts for visualizing test results and statistical distributions.

Implemented visual confidence intervals for better result interpretation.

Fixed rounding errors in statistical calculations for edge cases.

Added dedicated sample size calculator with power analysis.

Implemented tools for estimating minimum detectable effect sizes.

Redesigned interface with better visual hierarchy and cleaner layout.

Extended calculator to support A/B/C and multivariate testing scenarios.

Added comprehensive power analysis tools for test planning.

Enhanced input validation with real-time feedback and error prevention.

Added trending analysis for conversion rates over time.

Enhanced results display with clearer explanations and recommendations.

Fixed issues with very small sample sizes and extreme conversion rates.

Added ability to analyze historical A/B test data and trends.

Implemented baseline metrics comparison and tracking.

Optimized calculations for faster results with large datasets.

Added Chi-square, Fisher's exact test, and other advanced statistical methods.

Rebuilt calculation engine for better accuracy and performance.

Fixed compatibility issues with older browsers and mobile devices.

Major redesign with modern UI framework and improved user experience.

Implemented real-time calculation updates as users type.

Added ability to export results in multiple formats.

Added ability to customize confidence levels (90%, 95%, 99%).

Improved statistical calculations with better precision.

Fixed issues with negative numbers and invalid inputs.

Added support for both one-tailed and two-tailed statistical tests.

Enhanced results display with better formatting and explanations.

Fixed several edge cases in statistical calculations.

Added comprehensive statistical significance testing with p-values.

Implemented Cohen's d and other effect size measurements.

Improved layout and visual design for better usability.

Added confidence interval calculations for conversion rates.

Improved input handling with better validation and error messages.

Fixed mobile display issues and improved touch interactions.

Added relative improvement percentage calculations between variants.

Implemented comprehensive results summary with key insights.

Optimized calculations for better performance with large numbers.

Added Z-score calculations for statistical analysis.

Enhanced error handling with user-friendly error messages.

Fixed decimal precision issues in conversion rate calculations.

Added standard error calculations for conversion rates.

Improved input validation to prevent invalid data entry.

Fixed division by zero errors when visitors count is zero.

Added automatic conversion rate calculations from visitors and conversions.

Improved form layout and added better visual feedback.

Fixed issues with number formatting and decimal inputs.

Added results display showing conversion rates and basic statistics.

Improved form validation with real-time feedback.

Fixed rounding errors in percentage calculations.

Basic A/B test calculator with simple conversion rate comparison.

Input fields for visitors and conversions for Control and Variant groups.

Simple percentage calculations and basic statistical comparisons.