v2.0.0 — Community Intelligence

Community Intelligence

New AI Tools

• Sentiment Analysis — visual sentiment bar with positive/negative/neutral distribution
• Cross-Subreddit Comparison — compare how different communities view the same topic
• Trending Topics — velocity-ranked hot posts per subreddit
• Thread Summarizer — TLDR with key points, consensus, and dissenting opinions

Enhanced UI

• Rich source previews with thumbnails, link domains, and relative timestamps
• SentimentBar component renders inline in chat responses
• Subreddit pages (/r/[subreddit]) with design tokens and floating "Ask" CTA
• Enhanced system prompt for intelligent tool selection

Design System (v1.7.0)

• Full Orangered brand identity with Apple-inspired shadows
• Warm token system for light/dark themes
• 2-font typography (Plus Jakarta Sans + JetBrains Mono)

v1.7.0 — Design System Overhaul

Design System Overhaul

• Reddit Orangered (#ff4500) as singular brand accent, replacing all purple
• --rc-* CSS custom property token system for light/dark themes
• Warm gray surfaces with cream undertones (not cold grays)
• Apple-inspired diffused card shadows with hover lift on light theme
• Consolidated to 2 fonts: Plus Jakarta Sans + JetBrains Mono
• Semi-transparent rgba borders throughout
• Orange focus rings and active states
• Full DESIGN.md documentation
• All hardcoded colors converted to Tailwind brand token classes

v1.6.0 — User Roles & Tier-Based Access Control

ReddiChat v1.6.0

Features

• User Roles — role column on user table (free/pro/team/admin) exposed via Better Auth session
• Tier Configuration — single source of truth in tiers.ts for all per-tier limits and model access
• Model Locking — free tier limited to Gemini 2.5 Flash; locked models show lock icon in UI
• Tier-Aware Limits — daily usage limits scale per tier (100→1000→5000→unlimited msgs/day)
• Admin API — GET /api/admin/users (paginated user list with usage) and PATCH /api/admin/users/[id]/role (role management)
• Dynamic Plan Badge — profile dropdown shows actual tier name and limits
• Auto Model Reset — if user's selected model isn't in their tier, silently resets to default

Tier Limits

	Free	Pro	Team	Admin
Messages/day	100	1,000	5,000	Unlimited
Models	Gemini 2.5 Flash	All	All	All

v1.5.0 — Search, Export & Interaction Polish

ReddiChat v1.5.0

Features

• Conversation Search — filter threads by title from the sidebar with real-time filtering
• Markdown Export — download any conversation as a .md file with sources
• Streaming Phases — elapsed time display during AI responses, >15s warning banner
• Keyboard Shortcuts — Cmd/Ctrl+K (search), Cmd/Ctrl+N (new chat), Escape (close)
• Error UI — styled retry button with contextual hints (rate limit, timeout, network)
• Accessibility — aria-busy on streaming messages, aria-labels on all interactive elements, focus-visible rings

v1.4.2 — Quick Topic Chips

ReddiChat v1.4.2

Changes

• Quick topic chips in the contact dialog — select a topic and the form fills instantly
• 5 topics: Upgrade to Pro, Billing Question, Report Issue, Feature Request, Other
• Each chip prefills both subject and a structured message template
• "Upgrade to Pro" auto-inserts the user's email address
• Active chip highlighted with purple accent
• Textarea auto-focuses after selection with cursor at end
• 3-click flow: open → select topic → send
• Full dark mode support, chips wrap on mobile

v1.4.1 — In-App Contact Form

ReddiChat v1.4.1

Changes

• In-app contact form replaces the raw mailto: link in the profile dropdown
• Contact dialog with pre-filled subject ("Billing Inquiry — ReddiChat"), character limits, and toast feedback
• POST /api/contact endpoint sends email via Nodemailer with HTML escaping and replyTo support
• Rate limited to 5 contact messages per user per day
• User's email is read from session (not editable) to prevent spoofing

v1.4.0 — Profile Dropdown & UX Polish

ReddiChat v1.4.0

Features

Profile Dropdown

• Rich dropdown replacing sidebar footer: user info, usage progress bar, plan badge, settings, billing contact, sign out
• Inline display name editing with PATCH /api/user/profile (auth, validation, rate limiting)
• Theme toggle moved into dropdown (removed from sidebar header)
• Usage progress bar with color-coded thresholds and reset countdown
• "Free Plan — 100 msgs/day" badge
• Works in both expanded and collapsed sidebar states

Copy Button on AI Responses

• Copy-to-clipboard button on every assistant message
• Visible on hover (desktop), always visible (mobile)
• Toast confirmation with check icon feedback

Mobile-Responsive Layout

• Sidebar overlays content on mobile (<768px) instead of pushing
• 44px minimum touch targets on all interactive elements
• Reddit source cards stack vertically on small screens
• Model selector dropdown goes full-width on mobile

v1.3.1 — Usage Visibility

ReddiChat v1.3.1

Patch release completing v1.3.0 security work with user-facing usage visibility.

Features

• Usage API — GET /api/usage returns daily usage, limits, and UTC reset time
• Usage indicator — shows remaining messages in the chat input bar with color-coded thresholds (gray → amber → red)
• Precise limit errors — "You've used 100/100 messages today. Resets at midnight UTC." instead of generic messages
• Send button disabled when daily message limit is exhausted
• Tooltip on usage indicator shows full breakdown (messages, tokens, uploads)
• Auto-refreshes usage every 60 seconds

Bug Fixes

• Usage data now visible to users before they hit limits
• Error messages include exact counts for all limit types (messages, tokens, uploads, upload bytes)

v1.3.0 — Security & Cost Protection

ReddiChat v1.3.0

Features

• DB-backed daily usage limits (100 msgs/day, 500K tokens/day, 50 uploads/day, 100MB/day)
• usage_tracking table with per-user daily aggregation via upsert
• Token budget system — caps input at ~32K estimated tokens, truncates oldest history
• File upload hardening: MIME whitelist with magic byte validation, max 5 files/request, filename sanitization
• Request body size limit (50MB)
• Error sanitization — no internal error details leak to client
• Comprehensive request logging with requestId tracing on all endpoints
• requestId generation in structured logger

Security Improvements

• Every chat request now logs: requestId, userId, model, input size, file count, tools used, response size, duration
• Daily limits enforced at database level — survives restarts and deploys
• File content validated against declared MIME type using magic bytes
• AI provider errors mapped to safe user-facing messages

v1.2.0 — Production Hardening

ReddiChat v1.2.0

Features

• In-memory rate limiting (30/hr chat, 20/hr upload, 60/hr reddit)
• Zod input validation on all API endpoints
• DB connection pooling (max 20, idle 30s, connect 5s)
• Database indexes on conversations, messages, and attachments
• N+1 query fix — batch attachment fetch replaces Promise.all loop
• Exponential backoff retry for Reddit API token refresh
• 10s timeout on S3 uploads
• Partial AI response guard — only saves after full stream
• Structured JSON logger replacing all console.log/error