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FastRAGChangelog

Changelog

Follow our journey building the ultimate RAG Starter Kit. We ship meaningful updates every few weeks.

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Jun 2026v2.0.0

Claude Haiku · Voyage AI · Cheerio

Latest

A full stack swap — replaced OpenAI with Anthropic Claude Haiku for chat, Voyage AI voyage-3.5 for embeddings (200M free tokens), and Cheerio for serverless-safe web scraping. Zero ESM conflicts on Vercel, no headless browser required.

  • NewClaude Haiku (claude-haiku-4-5) — sub-second TTFT streaming via native Anthropic SDK SSE
  • NewVoyage AI voyage-3.5 embeddings — separate document and query embedders for asymmetric retrieval
  • NewCheerio web scraping — fully CommonJS, no Puppeteer or Browserless required
  • NewIP-based demo rate limiting — 10 messages + 3 ingestions per 24h, file-based store (no Redis)
  • NewDemo status API — /api/demo-status returns usage counters and resetAt for live UI meters
  • NewFirst SSE event carries sources + usage payload before any answer text begins
  • ImprovedPDF ingestion increased to 20MB per file via Formidable multipart upload
  • ImprovedPinecone namespace isolation — namespace flows uniformly through ingest → store → retrieval
  • Improved0.3 cosine similarity threshold filters irrelevant chunks before Claude is called
  • FixRemoved BROWSERLESS_TOKEN and OPENAI_API_KEY — replaced with ANTHROPIC_API_KEY + VOYAGEAI_API_KEY
  • FixResolved ERR_REQUIRE_ESM on Vercel caused by node-html-parser — replaced with Cheerio
Feb 2026v1.3.0

The Production Overhaul

A complete rewrite of the ingestion engine and UI. Moved from a basic script interface to a production-grade SaaS layout with multi-user support.

  • NewWeb Scraping Engine (Puppeteer + Browserless)
  • NewBento Grid Landing Page & full UI refresh
  • NewMobile-first Chat Interface
  • ImprovedInteractive Terminal Loader for demos
  • FixNamespace Isolation — prevents context bleeding between users
Jan 2026v1.2.0

PDF & Cost Optimisation

Focused on reducing vector storage costs and handling larger documents more reliably.

  • NewMulti-file PDF Upload Support (up to 10 files)
  • ImprovedMigrated to Pinecone Serverless for lower costs
  • FixFixed PDF parsing for large files (>10 MB)
Dec 2025v1.0.0

Initial Launch

The first public release of the FastRAG Starter Kit.

  • NewNext.js Pages Router setup
  • NewBasic RAG pipeline — LangChain + OpenAI
  • NewTailwind CSS styling + Vercel deploy config