Changelog

Recent changes and updates to the Unmarkdown™ platform and API.

February 2026

February 15, 2026

docs.unmarkdown.com

• Launched documentation site powered by the Unmarkdown™ rendering engine.
• 28 documentation pages covering API reference, guides, concepts, and templates.
• Two-column layout for API reference pages with tabbed code examples in cURL, JavaScript, and Python.

February 14, 2026

Phase 9B: Developer Pages

• Added /developers page with API overview, quick start, and endpoint reference.
• Published llms.txt and llms-full.txt for AI language model integration.
• Published openapi.json (OpenAPI 3.1 specification) for all v1 endpoints.
• Added developer links to footer and robots.txt.

Phase 9A: REST API

• Launched the Unmarkdown™ REST API at https://api.unmarkdown.com/v1.
• 13 v1 endpoints: convert, documents CRUD, publishing, demo publish, claim, templates, usage.
• API key authentication with um_ prefix, SHA-256 hashed storage, max 2 keys per account.
• Rate limiting: 10 req/sec (Free), 30 req/sec (Pro). Sliding window.
• Usage quotas: 1,000 calls/mo (Free), 10,000 calls/mo (Pro). Monthly reset.
• Demo publish: no authentication required, 72-hour expiry, claim flow.
• API key management in Settings > API tab.

Account Improvements

• Email change with confirmation flow (Supabase + Stripe sync).
• Username 30-day cooldown between changes (first-time set exempt).

Billing Hardening

• 12 billing scenarios hardened: webhook idempotency, subscription lifecycle events, cancel/resubscribe, monthly-to-annual upgrade, downgrade protection, account deletion with soft-delete.
• Enhanced billing tab with 5 states (active, canceling, canceled, past_due, free).

February 13, 2026

Pre-Launch Sprint

• Document limit changed from "3 published" to "3 created" (clearer, simpler).
• Graphviz and Chart.js insertion gated behind Pro (rendering stays free for all).
• All 6 pricing surfaces updated to $8/mo annual,$10/mo monthly.
• Modal checkout for logged-in users (in-app Stripe checkout).
• CTA and conversion flow audit: all marketing CTAs fixed.

Earlier in February 2026

• Settings modal (Notion-style, 4 tabs) replacing dashboard pages.
• Template customizer with ~60 controls and favorites system.
• Shared document editing with optimistic locking and Supabase Realtime awareness.
• Template-preserved downloads (clipboard, HTML, DOCX, PDF).
• Chart.js support (8 chart types, render-to-image, template-themed).
• Avatar upload with cropping.

January 2026

• All 62 templates complete (8 free + 54 Pro across 8 categories).
• AI Quick Actions: 12 one-click editing actions powered by Claude Haiku.
• Publishing infrastructure: public URLs, author profiles, OG images, SEO.
• Landing page redesign with Framer Motion animations.
• Dedicated pricing page with feature comparison matrix.
• Collections for organizing published documents.
• Analytics panel and dashboard with Nivo charts.

December 2025

• Bidirectional editing: edit in the preview pane, changes sync back to markdown.
• Formatting toolbar with 30+ controls.
• Template engine foundation: CSS generator, Google Fonts, template picker.
• Mermaid diagrams (12 types), Graphviz graphs (8 engines), KaTeX math.
• Full emoji library and Lucide icon picker.

---