Changelog

Version history for CBrowser. See What-Is-CBrowser for an overview.

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v18.60+ (April 2026)

• question_answer tool — ask questions about CBrowser docs
• device parameter on empathy_audit and agent_ready_audit for mobile WCAG testing
• WCAG-accurate scoring: proper contrast ratio calculation, AA vs AAA touch target thresholds
• Skip link exemption in barrier detection
• Centralized tool result auto-save via tier-gate wrapper
• Per-site analytics dashboard with 6 report tabs
• AI interpretation on all dashboard widgets
• FTS5 knowledge base (291 pages indexed)
• Prompt library with voting and copy tracking
• Visual report image interpretation via Claude Vision

v18.35 (March 2026)

• Site knowledge learning — builds a knowledge graph per site (Tool-Site-Model-Status)
• Page understanding — real-time page model from DOM analysis (Tool-Page-Understand)
• Cross-session state with AES-256-GCM encrypted cookies (Tool-Site-Profile-List)
• siteFamiliarity trait — controls how much site knowledge each persona has (Trait-SiteFamiliarity)
• 4 new disability personas: Autism Spectrum, Intellectual Disability, Receptive Aphasia, Dyscalculia
• Empathy audit works with any persona (flags non-disability personas)

v18.24–18.28 (February 2026)

• Cognitive Optimal Transport — Wasserstein-based persona distance and attention maps
• Visual Transport Map (Tool-Transport-Map) — shows WHERE content moved between screenshots
• Attention analysis with saliency heatmaps (Tool-Attention-Analysis)
• 6-layer Sequential CTC: saliency, cognitive load, decision, motor, frustration, readability

v17.x (January 2026)

• 26 cognitive traits (expanded from 12) with research citations
• Trait reference matrix — 5 behavioral levels per trait
• Trait correlations — automatic adjustment of related traits
• Schwartz's 10 universal values framework (Values-Framework)
• Custom persona creation via questionnaire (Persona-Questionnaire)
• 120 MCP tools total

v16.x (December 2025)

• Persona questionnaire — research-backed custom persona creation
• AskUserQuestion integration for persona creation
• Tool count: 97 MCP tools

v11.x (October 2025)

• Self-efficacy trait — Bandura (1977) belief in problem-solving ability
• Satisficing trait — Simon (1956) "good enough" decisions
• Trust calibration — Fogg (2003) website trust with 8 signal types
• Interrupt recovery — Mark (2005) task resumption after distraction
• 12 core cognitive traits

v10.x (September 2025)

• Persona aliases for empathy audit (motor-tremor, low-vision, adhd)
• Research-grounded scoring with 13+ academic citations
• Banner blindness and tunnel vision simulation
• WebGazer saliency for gaze prediction
• Dual-process theory (System 1/2) simulation
• GOMS/KLM keystroke-level timing

v9.x (August 2025)

• Agent-ready audit, competitive benchmark, accessibility empathy mode
• Chrome extension for hybrid automation
• Deterministic cognitive journeys (all AI-driven)
• API-free persona comparison via session bridge

v8.x (July 2025)

• Cognitive user simulation with traits
• Vision mode for screenshot understanding
• Hover-before-click for dropdown navigation
• Daemon mode for persistent browser sessions
• Abandonment detection

v7.x (June 2025)

• Claude skill system
• AI visual regression
• Cross-browser testing (Chrome, Firefox, Safari)
• Responsive testing (mobile, tablet, desktop)
• A/B comparison
• Auth0 OAuth for claude.ai

v6.x (May 2025)

• Natural language tests (Natural-Language-Tests)
• AI test repair (AI-Test-Repair)
• Flaky test detection (Flaky-Test-Detection)
• Multi-persona comparison (Multi-Persona-Comparison)