# Changelog

## Changelog, page 18

27 July27 Jul

- [

    ## WebSocket support for OpenAI Responses API live on AI Gateway

    AI Gateway now supports WebSocket mode for the OpenAI Responses API, with persistent connections, previous\_response\_id continuation, and realtime voice sessions.

    Kevin Dawkins, Jerilyn Zheng

    ](/changelog/websocket-support-for-openai-responses-api-live-on-ai-gateway)

- [

    ## Nuxt July 2026 security advisory

    Nuxt 4.5.1 and 3.21.10 fix eight security advisories. Deployments on Vercel are automatically protected, but upgrading is still required.

    Daniel Roe, Sage Abraham

    ](/changelog/nuxt-july-2026-security-advisory)

- [

    ## Kimi K3 and Kimi K3 Fast with ZDR and US-based providers now on AI Gateway

    Kimi K3 and Kimi K3 Fast from Moonshot AI are now available on AI Gateway with Zero Data Retention, served by US-based providers including Baseten and Fireworks, with automatic failover for higher uptime and a faster serving path for lower latency.

    Jerilyn ZhengProduct, AI Gateway

    ](/changelog/kimi-k3-and-kimi-k3-fast-on-ai-gateway)

24 July24 Jul

- [

    ## Vercel WAF for Blob is now in beta

    Protect Vercel Blob stores with WAF rules. Deny, challenge, and rate limit blob traffic with no changes to your code.

    Agustin Falco, Can Temizyurek

    ](/changelog/vercel-waf-for-blob-is-now-in-beta)

- [

    ## Workflow steps now support extended function durations

    Workflows on Vercel can now use the extended function duration per plan, allowing workflow steps to execute for up to 30 minutes

    Elliot DauberSoftware Engineer

    ](/changelog/workflow-steps-now-support-extended-function-durations)

- [

    ## Claude Opus 5 now available on AI Gateway

    Claude Opus 5 from Anthropic is available on AI Gateway with BYOK support, no markup on provider pricing, high rate limits, and automatic failover, across all API formats. ---

    Rohan Taneja, Sam Chitgopekar, and 1 other

    ](/changelog/claude-opus-5-now-available-on-ai-gateway)

23 July23 Jul

- [

    ## WebSocket support is now available for Python Functions

    Vercel Functions written in Python can now accept WebSocket connections, enabling bidirectional communication between clients and server-side code on Vercel.

    Fantix King, Greg Schofield, and 1 other

    ](/changelog/websocket-support-is-now-available-for-python-functions)

- [

    ## Evaluation metrics for Vercel Flags

    Feature flag evaluation metrics now chart evaluations per minute and let you group by variant, reason, environment, and SDK key to verify rollouts

    Luis Meyer, Andy Schneider, and 1 other

    ](/changelog/evaluation-metrics-for-vercel-flags)