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Changelog

All notable TruthVouch updates. This page is updated as features ship.

2026-04-04

SDK Verification APIs

  • All three SDKs (Python, TypeScript, .NET) now include a client.verify namespace with four methods:
    • verify.data_grounding() — Verify LLM responses against raw query data
    • verify.claim() — Verify factual claims against the knowledge base
    • verify.faithfulness() — Check if a response is faithful to source context
    • verify.prompt_quality() — Evaluate prompts for injection, leakage, and quality issues
  • New MCP tool: verify_data_grounding
  • New CLI command: truthvouch verify-data

Data-Grounded Response Verification

  • New governance pipeline stage: verify text-to-SQL and RAG-over-data agent responses against raw query results
  • Numeric claims verified deterministically (arithmetic comparison, not LLM judgment)
  • Qualitative claims verified via faithfulness checking against source data
  • Per-claim verdicts with evidence, stored in audit trail
  • Frontend dashboard for reviewing verification results under Governance

2026-04-03

SDK Ecosystem Launch

  • Python SDK — truthvouch v1.0.0 published on PyPI. Drop-in OpenAI, Anthropic, Google AI replacement with 6 built-in guards
  • TypeScript SDK — @truthvouch/sdk v1.0.1 published on npm. Zero runtime dependencies, ESM+CJS
  • .NET SDK — TruthVouch.Sdk v1.1.1 published on NuGet. DI integration, streaming, circuit breaker

Framework Integrations

  • LangChain — langchain-truthvouch v1.0.0 on PyPI (Guard, Retriever, Callback handler)
  • LlamaIndex — llama-index-truthvouch v1.0.0 on PyPI (Node postprocessor, Response evaluator, Query engine)
  • Semantic Kernel — TruthVouch.SemanticKernel v1.0.1 on NuGet (Function filter, Prompt filter, Plugin)

CLI Publish & Distribution

  • @truthvouch/cli published on npm, Homebrew (truthvouch/tap/truthvouch), and Chocolatey
  • Standalone binaries for Linux (x64/arm64), macOS (x64/arm64), Windows (x64)
  • Shell completions for bash, zsh, fish
  • truthvouch update self-update command

MCP Server Packaging

  • @truthvouch/mcp-server published on npm — 22 governance tools for Claude Code, Claude Desktop, Cursor
  • One-line setup: truthvouch mcp setup --api-key <key>
  • Or direct: claude mcp add truthvouch -- npx -y @truthvouch/mcp-server

Artifact Distribution Pipeline

  • GitLab CI release pipeline for all published packages
  • CycloneDX SBOM generation for every artifact
  • Sigstore cosign image signing for container images
  • npm provenance attestation for TypeScript packages

2026-03-15

Added

Platform

  • Hallucination Shield with cross-check scheduling and alert management
  • AI Governance Gateway with policy enforcement and audit logging
  • Brand Intelligence with AI engine monitoring and GEO scoring
  • Compliance Hub with framework mapping and evidence collection
  • Content Certification with trust badges
  • Knowledge Base with Truth Nuggets and auto-discovery

API Deprecation Policy

  • Breaking Changes — Require major version bump
  • Deprecation Notice — 6 months minimum before removal
  • Sunset Date — Clearly announced before deadline
  • Migration Guide — Provided for all deprecated features

Feedback & Requests