Day 0 Support: GPT-5.4
GPT-5.4 model support in LiteLLM
DAY 0 Support: Gemini 3.1 Flash Lite Preview on LiteLLM
Guide to using Gemini 3.1 Flash Lite Preview on LiteLLM Proxy and SDK with day 0 support.
Incident Report: Cache Eviction Closes In-Use httpx Clients
Date: February 27, 2026
Day 0 Support: GPT-5.3-Codex
Day 0 support for GPT-5.3-Codex on LiteLLM, including phase parameter handling for Responses API.
Incident Report: Encrypted Content Failures in Multi-Region Responses API Load Balancing
Date: Feb 24, 2026
Incident Report: Wildcard Blocking New Models After Cost Map Reload
Date: Feb 23, 2026
Incident Report: SERVER_ROOT_PATH regression broke UI routing
Date: January 22, 2026
DAY 0 Support: Gemini 3.1 Pro on LiteLLM
Guide to using Gemini 3.1 Pro on LiteLLM Proxy and SDK with day 0 support.
Incident Report: vLLM Embeddings Broken by encoding_format Parameter
Date: Feb 16, 2026
Day 0 Support: Claude Sonnet 4.6
Day 0 support for Claude Sonnet 4.6 on LiteLLM AI Gateway - use across Anthropic, Azure, Vertex AI, and Bedrock.