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Changelog

Full release notes are also on GitHub Releases.

v0.8.0 — 2026-03-10​

MCP integration (Phase 1)​

  • Added mcp_servers configuration block for Model Context Protocol tool servers
  • Gateway injects available tools into every chat completion request automatically
  • Full agentic loop: gateway handles all tool_calls rounds internally, returns final text to client
  • Background MCP initialisation on startup with 60-second timeout; gateway is ready immediately
  • MCPInitDone() channel on Gateway struct for sync when needed
  • Per-server allowed_tools whitelist for access control
  • Per-server max_call_depth limit to prevent infinite loops
  • Environment variable interpolation (${VAR}) in MCP server headers
  • 29 new tests covering MCP lifecycle and agentic loop behaviour
  • Bug fixes: nil-safe circuit breaker map init, empty config array handling, streaming fix for empty delta content

v0.7.0 — 2026-03-08​

  • Comprehensive regression test suite (50+ end-to-end scenarios)
  • Fixed: race condition in concurrent provider health checks
  • Fixed: weight normalisation with single-target load balancer
  • Fixed: least-latency cold-start selecting excluded targets
  • Fixed: cost-optimized panic on missing catalog entry
  • Fixed: admin API pagination off-by-one on last page

v0.6.6 — 2026-03-07​

  • Refactored providers/core subpackage; providers_list.go split for clarity
  • All Name* constants re-exported from providers top-level package
  • Dashboard XSS hardening (output encoding on all admin UI fields)
  • Added CORS origin validation warning on startup for wildcard origins
  • Removed 19 deprecated provider shim files

v0.6.5 — 2026-03-07 — 5 new providers​

  • xAI (Grok) — XAI_API_KEY
  • Azure AI Foundry — AZURE_FOUNDRY_API_KEY + AZURE_FOUNDRY_ENDPOINT
  • Hugging Face — HUGGING_FACE_API_KEY
  • Google Vertex AI — VERTEX_AI_PROJECT_ID (ADC)
  • AWS Bedrock (static credentials) — AWS_ACCESS_KEY_ID + AWS_SECRET_ACCESS_KEY option
  • Provider subpackage refactor: unified factory pattern across all 19 providers
  • Total providers: 19; total models in catalog: 2,531

v0.6.1 — 2026-03-06​

  • CI GitHub Actions version bumps
  • Go dependency refresh (net/http, crypto)

v0.6.0 — 2026-03-06 — 5 new guardrail plugins​

  • pii-redact — detect and redact PII entities before forwarding
  • secret-scan — block requests containing credentials or high-entropy secrets
  • prompt-shield — score and block prompt injection attempts
  • schema-guard — validate model output against JSON Schema (after_request)
  • regex-guard — block requests matching configurable regex patterns
  • Total built-in plugins: 11 (5 new + 6 existing)
  • All new plugins ship disabled (enabled: false) in config.example.yaml

v0.5.0 — 2026-03-03​

  • Streaming cost tracking — token usage counted during streamed responses
  • Least-latency strategy — P50 rolling latency tracker, routes to fastest provider
  • Cost-optimized strategy — model catalog cost estimation, routes to cheapest provider
  • Per-target retry_on_status codes list (customise which HTTP status codes trigger retry)
  • CLI overhaul using Cobra — ferrogw-cli with admin, models, and keys subcommands

v0.4.5 — 2026-02-28​

  • Built-in model catalog with 2,531 model entries (pricing, context window, capabilities)
  • Cost calculator (models.Calculate()) used by cost-optimized strategy
  • /v1/models response enriched with catalog metadata (context window, max tokens, cost)
  • GitHub Actions catalog CI check — fails the build if catalog format is invalid