ContextRail AI
Product Velocity

ContextRail AI Changelog

Engineered updates for autonomous agent memory, semantic context routing, and Model Context Protocol streaming.

v1.2.0 October 8, 2026

Claude Sonnet 5.5 / 4.6 Streaming Support & MCP SSE Protocol

Full streaming integration with Anthropic's latest Claude Sonnet models, Server-Sent Events (SSE) transport for Model Context Protocol (MCP), and multi-turn prompt caching boundary preservation.

  • NEW Direct streaming pass-through for claude-sonnet-4-6 and claude-3-5-sonnet-latest with zero-copy buffer pooling.
  • PERF Dynamic semantic compression algorithm achieving up to 74% reduction in RAG token overhead while preserving factual context recall.
  • NEW Interactive developer documentation portal launched at /docs with live HTTP endpoint testing.
v1.1.0 September 15, 2026

Episodic Memory Graph Engine & Tenant Partitioning

Introduced hybrid HNSW vector search + knowledge graph synthesis for long-term agent episodic memory across multi-session workflows.

  • NEW Endpoint /v1/memory/search providing sub-12ms hybrid vector and entity graph lookups.
  • SECURITY Cryptographic tenant partitioning in European data centers (Madrid & Frankfurt) with Zero Data Retention (ZDR) guarantee.
v1.0.0 August 20, 2026

General Availability: The Agent Context Highway

Public launch of ContextRail AI B2B SaaS platform. Pure software middleware for autonomous Claude agents with Model Context Protocol (MCP) server integration.

  • NEW Core semantic routing engine with standard REST API and MCP server card (/.well-known/mcp/server-card.json).
  • NEW Sandbox ($0/mo), Builder ($39/mo), and Scale ($149/mo) self-serve developer subscription plans.