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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

[0.4.2] - 2026-02-28

Fixed

  • fix(ci): fallback to grep when ripgrep is unavailable

[0.4.1] - 2026-02-28

Fixed

  • fix(clippy): satisfy strict lints in audio service and router tests

[0.4.0] - 2026-02-28

Changed

  • Provider Infra: BaseConfig::for_provider() now delegates environment loading with the original provider input while keeping normalized default resolution in one place, removing duplicated normalization flow.
  • Provider Infra: BaseConfig::provider_env_key() env-key normalization now explicitly covers trimmed/case-variant provider input via regression test.
  • Provider Infra: BaseConfig::provider_env_key() now normalizes provider names internally, and from_env() reuses normalized env helpers directly to remove duplicated normalization flow.
  • Provider Infra: Centralized provider environment variable key/value resolution in BaseConfig helpers (provider_env_key, env_value) to remove repeated env lookup formatting.
  • Provider Infra: Centralized endpoint URL construction in BaseConfig::build_endpoint() and reused it for chat/embeddings endpoints to remove duplicated formatting logic.
  • Provider Infra: Centralized default API version assignment in BaseConfig::default_api_version() to remove repeated provider-specific conditionals.
  • Provider Infra: BaseConfig::for_provider now normalizes provider names (trim + lowercase) before catalog/fallback resolution to prevent casing/spacing drift.
  • Provider Infra: Removed legacy alias fallback in BaseConfig and kept canonical provider-name defaults only to avoid alias drift.
  • Provider Infra: Extracted legacy_default_base_url() helper in BaseConfig to isolate non-catalog fallback mapping and simplify maintenance while preserving behavior.
  • Provider Infra: BaseConfig::for_provider now consults Tier-1 provider catalog defaults first, reducing duplicated base URL definitions while preserving existing fallback behavior.
  • Provider Infra: Removed the unused CommonProviderConfig duplicate from core::providers::shared, keeping provider base config responsibilities centralized in core::providers::base and reducing schema duplication.

Added

  • Provider Tests: Added B1 batch coverage to validate aiml_api, anyscale, bytez, and comet_api selectors and creation paths resolve through Tier-1 catalog to OpenAILike providers.
  • Provider Tests: Added B2 batch coverage to validate compactifai, aleph_alpha, yi, and lambda_ai selector and creation paths resolve through Tier-1 catalog to OpenAILike providers.
  • Provider Tests: Added B3 batch coverage to validate ovhcloud, maritalk, siliconflow, and lemonade selector and creation paths resolve through Tier-1 catalog to OpenAILike providers.

0.3.0 - 2026-02-05

Added

  • Agent Coordinator: New core::agent module for managing concurrent agent lifecycles with cancellation, timeouts, and stats.
  • Utilities: Added utils::event publish/subscribe broker and utils::sync concurrent containers.

Changed

  • Providers: Migrated ai21, amazon_nova, datarobot, and deepseek to pooled HTTP provider hooks.
  • HTTP Client: Standardized pooled client usage and shared client caching across core/providers.
  • Routing: Refined provider routing and OpenAI-compatible request/response handling.

Fixed

  • Auth Context: Corrected user/api-key context propagation in auth routes and middleware.
  • SSRF Validation: DNS resolution failures no longer hard-fail SSRF checks while preserving IP safety.
  • Observability: Prometheus label handling now safely maps provider identifiers.
  • Concurrency: Event broker handles zero capacity; VersionedMap retry now guarantees progress under contention.
  • Packaging: Track core cache sources and add root README for crates.io.

0.1.3 - 2025-09-18

Fixed

  • docs.rs Build: Fixed documentation build failure on docs.rs by excluding vector-db feature
    • Added all-features = false to package.metadata.docs.rs configuration
    • Explicitly listed features that work with docs.rs read-only filesystem
  • Internationalization: Translated all Chinese comments and documentation to English
    • Cleaned 40+ files with hundreds of Chinese comments
    • Improved accessibility for international developers
    • Maintained technical accuracy in all translations

Changed

  • Configuration: Updated Cargo.toml metadata for better docs.rs compatibility
  • Documentation: All code comments are now in English

0.1.1 - 2025-7-28

Fixed

  • Security: Excluded sensitive configuration file config/gateway.yaml from published package
  • Package: Only include example configuration files (.example, .template) in published crate
  • Privacy: Prevent accidental exposure of API keys and secrets in published package

0.1.0 - 2025-07-28

Added

  • Initial release of Rust LiteLLM Gateway
  • High-performance AI Gateway with OpenAI-compatible APIs
  • Intelligent routing and load balancing capabilities
  • Support for multiple AI providers (OpenAI, Anthropic, Google, etc.)
  • Enterprise features including authentication and monitoring
  • Actix-web based web server with async/await support
  • PostgreSQL and Redis integration for data persistence and caching
  • Comprehensive configuration management via YAML
  • Rate limiting and request throttling
  • WebSocket support for real-time communication
  • Prometheus metrics integration
  • OpenTelemetry tracing support
  • Vector database integration (Qdrant)
  • S3-compatible object storage support
  • JWT-based authentication system
  • Docker and Kubernetes deployment configurations
  • Comprehensive API documentation
  • Integration tests and examples

Features

  • Core Gateway: OpenAI-compatible API endpoints
  • Multi-Provider Support: Seamless integration with various AI providers
  • Load Balancing: Intelligent request distribution
  • Caching: Redis-based response caching
  • Monitoring: Prometheus metrics and OpenTelemetry tracing
  • Authentication: JWT-based security
  • Rate Limiting: Configurable request throttling
  • WebSocket: Real-time streaming support
  • Storage: PostgreSQL for persistence, S3 for object storage
  • Vector DB: Qdrant integration for embeddings
  • Deployment: Docker, Kubernetes, and systemd configurations