Changelog

What changed

1. 2026-11-04

   • Story layer on every page: the question, myth and reality, steps in pictures, a real worked example, takeaways
   • Drafts of Release 2 (Parts 4 and 5, 14 pages) and Release 3 (Parts 6 and 7, 14 pages), with new measurements: four embedding models, score thresholds, compression, reranking, follow-ups, poisoned and restricted documents
   • Drafts of Release 4 (Part 8, 8 pages): index lifecycle, tracing, latency and cost, degraded modes, scaling, architecture choice, agents and MCP, GraphRAG. All 54 pages now have a draft

2. 2026-11-03

   • Site structure, design and the 54 page curriculum
   • Four labs that run in the browser: Chunk Lab, Token Lab, Mini RAG Lab (with your own API key) and Update Lab
   • Drafts of all 18 Release 1 pages (Parts 1 to 3), every number measured on the shared corpus
   • Search, sitemap, social preview image and the Architecture page