Security Townhall Updates
What happened, what we've done, and what comes next for LiteLLM's release and security processes.
Security Update: Suspected Supply Chain Incident
As of 2:00 PM ET on March 24, 2026
Incident Report: Guardrail logging exposed secret headers in spend logs and traces
Date: March 18, 2026
Day 0 Support: GPT-5.4-mini and GPT-5.4-nano
GPT-5.4-mini and GPT-5.4-nano model support in LiteLLM
New Video Characters, Edit and Extension API support
LiteLLM now supports creating, retrieving, and managing reusable video characters across multiple video generations.
Realtime WebRTC HTTP Endpoints
Use the LiteLLM proxy to route OpenAI-style WebRTC realtime via HTTP: client_secrets and SDP exchange.
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.