Material changes, without release noise

2026-07-16

Corrected conditional 304 Not Modified coverage to include standardized QUERY and clarified POST idempotency and caching requirements. Added trailer-field and informational-response details and corrected the exact max-age freshness boundary. Raw HTTP and redirect diagnostic examples now preserve their intended HTTP/1.1 and GET semantics. The Content-Type reference now reflects the JSON media type registration. Production builds now exclude the internal content-status and component-gallery QA routes.

Published a six-part, primary-source-led history of HTTP covering the CERN origins and HTTP/0.9, HTTP/1.0, HTTP/1.1, HTTP/2, QUIC and HTTP/3, and the protocol-evolution lessons behind newer extensions such asQUERY.

Added a current HTTP developments track covering Structured Fields, Content-Digest fields, HTTP Message Signatures, and optimistic HTTP/1.1 protocol transitions. Updated the compression Lab to document its Cloudflare edge boundary, reject unacceptable content codings, and prevent transformations; JSON examples now follow the registered media type without an obsolete charset parameter.

2026-07-14

Added a complete guide and Reference entry for the standardized HTTP QUERY method. A bounded Lab exercise demonstrates fixed JSON query content, Accept-Query, and the browser-generated CORS preflight.

Expanded the Glossary and added Reference entries for Content-Type, Cookie, and Access-Control-Allow-Origin. Published bounded request, delay, response-field, and same-site cookie Lab lessons. Clarified the permanent-free promise, organization-level source review, and fixed dark accessibility contract.

2026-07-13

Launched the reviewed HTTP learning corpus, bounded Lab, static search, topic discovery, and public editorial policies.