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Release Notes

Version history, ECS configuration changes, and API changelog for Sentinel releases.

Release Notes

Sentinel follows semantic versioning. Releases are cut from main and deployed via Jenkins.

Release Cadence

  • Patch releases (x.x.Z): Bug fixes, security patches — weekly or as-needed
  • Minor releases (x.Y.0): Features, API additions — monthly
  • Major releases (X.0.0): Breaking changes, architecture shifts — quarterly

v6.1 — Production (Current)

Date: May 2026
Status: Stable

Added

  • Document intelligence pipeline v2 with 12-stage agentic extraction
  • Real-time pipeline progress polling via WebSocket fallback
  • Batch upload support for up to 50 documents
  • RAG-powered chat with web search integration
  • Multi-tenant RBAC with custom role definitions

Improved

  • CAS extraction accuracy: 94.2% → 97.8% field-level F1
  • Pipeline latency: standard docs now < 45 seconds (was < 60)
  • Chat response time: < 3 seconds for RAG queries
  • Frontend bundle size: reduced 18% via tree-shaking

Infrastructure

  • Migrated ECS tasks to Fargate Spot for dev/staging
  • Added CloudFront Function for edge header injection
  • Enabled OpenSearch cross-cluster replication for DR

v6.0

Date: April 2026

Added

  • Agentic backend with autonomous workflow graphs
  • LLM orchestrator with provider routing and cost tracking
  • Knowledge base vector search with hybrid BM25 + KNN
  • Integration framework for third-party connectors

Breaking

  • API v2 pipeline endpoints replace v1 async webhooks
  • Auth token format updated (JWT claims expanded)

v5.2

Date: March 2026

Added

  • Zen financial chat with guardrails and citations
  • Portfolio analytics dashboard with Sharpe ratio and VaR
  • White-label theming for B2C partners

v5.1

Date: February 2026

Added

  • Nexus document intelligence (10-stage pipeline)
  • Studio BFF gateway with unified auth
  • S3-based document storage with versioning

v5.0

Date: January 2026

Added

  • Initial Sentinel platform launch
  • Next.js 16 frontend with App Router
  • FastAPI Studio middleware
  • MongoDB + PostgreSQL data layer

Deprecation Policy

  • API versions: Supported for 6 months after new major version release
  • Features: Announced 30 days before removal with migration guide
  • Dependencies: Security patches applied within 7 days of CVE disclosure