Changelog

February 27, 2026

• 🚀 New Feature: Template unification — MQTT template engine merged with core pkg/template for consistent templating across all protocols
• 🚀 New Feature: Schema-driven response generation — OpenAPI specs auto-generate realistic responses using format→faker mapping, field-name heuristics, and enum picks
• 🚀 New Feature: Mockoon import — auto-detect and convert Mockoon environment JSON files including routes, CRUD resources, templates, and data buckets
• 🚀 New Feature: Engine command — mockd engine --port 0 --print-url for CI pipelines with auto-port selection and minimal overhead
• 🚀 New Feature: Seeded responses — deterministic output via ?_mockd_seed=42 query param or X-Mockd-Seed header for reproducible testing
• 🚀 New Feature: Control plane / data plane fan-out — multi-engine topology for horizontal scaling (CP/DP Phase 1)
• 🚀 New Feature: Circuit breaker chaos fault — stateful trip/open/half-open cycle with configurable thresholds, retry-after headers, and progressive degradation
• 🐛 Bug Fix: Case-insensitive faker resolution — faker.Name and faker.name now both resolve correctly
• 🐛 Bug Fix: Added randomInt, randomString, randomFloat aliases and faker.url to template engine
• 🐛 Bug Fix: Chaos API accepts flat config format — unknown top-level fields absorbed into Config map via custom UnmarshalJSON
• 🐛 Bug Fix: Mockoon import template syntax — converts to dot-notation (request.pathParam.id) instead of function-call syntax
• 🐛 Bug Fix: Mockoon import maps query/header/body helpers to correct engine field names (request.query, not request.queryParam)

February 24, 2026

• 🚀 New Feature: Import from stdin — pipe curl commands, JSON, or YAML directly: echo '{"mocks":[...]}' | mockd import
• 🚀 New Feature: Import directories — mockd import ./mocks/ recursively loads all .yaml/.json files
• 🚀 New Feature: --stateful flag on mockd add — instantly creates CRUD endpoints with mockd add http --path /api/users --stateful
• 🚀 New Feature: Config auto-generates IDs and infers type — simpler YAML configs with fewer required fields
• 🚀 New Feature: response.body accepts JSON objects directly — no more escaping or stringifying
• 🐛 Bug Fix: 24 documentation bugs fixed across 30 doc files — all examples verified against live server
• 📚 Documentation: Comprehensive docs rewrite — every YAML and API example tested live and corrected

February 22, 2026

• 🐛 Bug Fix: MQTT broker deadlock — Broker.Stop() held write lock while simulator needed read lock
• 🐛 Bug Fix: Engine startup rollback on HTTP/HTTPS listen failures
• 🐛 Bug Fix: Reject duplicate workspace names with 409 Conflict
• 🚀 New Feature: Standardized --json output across all CLI commands with printResult/printList helpers
• 🚀 New Feature: 18 JSON contract tests ensuring consistent output format
• 🚀 New Feature: Positional type argument: mockd add http --path ... (alongside --type flag and subcommands)
• ⚡ Improvement: README overhaul with comparison table, corrected CLI examples, and demo GIF

February 20, 2026

• 🚀 New Feature: OAuth 2.0/OIDC mock provider with mockd oauth add command
• 🚀 New Feature: Protocol utility commands: grpc call, soap call/validate, mqtt publish/subscribe, graphql query/validate
• 🚀 New Feature: New serve flags: --cors-origins, --rate-limit, --no-persist, --watch
• 🚀 New Feature: Request matching: --match-body-contains and --path-pattern on HTTP add
• 🚀 New Feature: Template functions: {{random.string(N)}}, {{mtls.san.ip}}, {{sequence("name", start)}}
• 🐛 Bug Fix: SSE template expressions now resolve instead of returning literal strings
• 🐛 Bug Fix: Content-Type auto-detection: JSON bodies get application/json
• 🐛 Bug Fix: Health endpoint zero timestamp in Docker (startTime race condition)

February 15, 2026

• 🐛 Bug Fix: 53 bug fixes across admin API, CLI, engine, and all 7 protocols
• 🚀 New Feature: 704 new Go tests plus 337 BATS end-to-end tests across 41 suites
• 🚀 New Feature: File-based recording pipeline with disk persistence for proxy captures
• 🚀 New Feature: SOAP auto-generated WSDL from configured operations
• 🚀 New Feature: Stateful PATCH support for partial resource updates
• 🚀 New Feature: OpenAPI example response body generation from schemas
• 🚀 New Feature: CLI health command, request timeout, and max connections flags
• 🚀 New Feature: Chaos engineering: faults field on rules with probability validation
• ⚡ Improvement: Admin API pagination, increased body limit, and auth improvements
• ⚡ Improvement: Full QA checklist verified: 1,295 items across 34 sections

February 10, 2026

• 🐛 Bug Fix: Fixed CLI export format handling for JSON and YAML output
• 🚀 New Feature: Added health command for server reachability checks
• ⚡ Improvement: Configuration validation improvements for methods and server config

February 4, 2026

• 🚀 New Feature: MCP server overhaul — 16 multiplexed tools with multi-protocol support, chaos engineering, mock verification, and workspace management
• 🚀 New Feature: MCP wired into CLI with stdio and HTTP transports (mockd serve --mcp)
• 🚀 New Feature: AI mock generation via OpenRouter, OpenAI, Anthropic, and Ollama
• 🚀 New Feature: Multi-protocol tunnel support — gRPC, WebSocket, and MQTT through a single secure connection
• 🚀 New Feature: Tunnel authentication: token, Basic Auth, and IP allowlist for incoming requests
• 🚀 New Feature: Anonymous tunnel JWT — no signup required to try cloud tunnels
• 🐛 Bug Fix: MQTT broker shutdown deadlock resolved
• 🐛 Bug Fix: AI pipeline now validates mocks and strips markdown code fences from LLM responses
• 🐛 Bug Fix: Chaos injection CLI no longer nests config under ignored key
• 🐛 Bug Fix: Actionable error messages when mockd server is unreachable
• 🔒 Security: Upgraded tunnel transport and x/crypto dependencies to resolve CVEs

January 27, 2026

• 🐛 Bug Fix: Version string now reports correct version
• 🐛 Bug Fix: Stubs with enabled:false are now properly skipped
• 🐛 Bug Fix: bodyFile responses now resolve correctly
• 🐛 Bug Fix: MQTT template rendering, loop publishing, ACL, and simulation
• 🐛 Bug Fix: GraphQL subscription delivery
• 🐛 Bug Fix: mTLS CN-based filtering
• 🐛 Bug Fix: CORS preflight and OPTIONS handling
• 🐛 Bug Fix: HEAD method fallback to GET stubs
• 🐛 Bug Fix: Chaos engineering admin API endpoints
• 🐛 Bug Fix: WebSocket template rendering
• 🐛 Bug Fix: gRPC metadata wildcard matching
• 🐛 Bug Fix: Admin API matched filter and DELETE invocation tracking
• 📚 Documentation: Fixed broken links in sharing-mocks and validation docs
• ⚡ Improvement: Removed all TUI references from codebase

January 22, 2026

• 🚀 New Feature: Multi-protocol mock server: HTTP, GraphQL, gRPC, WebSocket, MQTT, SSE, SOAP
• 🚀 New Feature: Record & replay functionality
• 🚀 New Feature: Smart request matching with priority-based routing
• 🚀 New Feature: Response templating with Go templates
• 🚀 New Feature: Stateful CRUD mock endpoints
• 🚀 New Feature: Chaos engineering (latency injection, fault simulation)
• 🚀 New Feature: Proxy and passthrough mode
• 🚀 New Feature: TLS/mTLS support
• 🚀 New Feature: Admin API for runtime configuration
• 🚀 New Feature: Prometheus metrics and OpenTelemetry tracing
• 🚀 New Feature: Hot reload on config changes
• 🚀 New Feature: Docker and Helm chart support
• 📚 Documentation: Comprehensive documentation site