megachangelog
Feature3.2

Flags SDK 3.2 – Precomputed feature flags for SvelteKit

Flags SDK 3.2 adds support for precomputed feature flags in SvelteKit, enabling faster marketing pages with static variants evaluated at build time and served through the Edge Network. This eliminates layout shift and global latency while simplifying multi-flag experimentation.

The 3.2 release adds support for in , making it easier to experiment on marketing pages while keeping them fast and avoiding layout shift. Flags SDKprecomputed feature flagsSvelteKit

Precomputed flags evaluate in Edge Middleware to decide which variant of a page to show. This keeps pages static, resulting in low global latency as static variants can be served through the Edge Network.

Precompute handles the combinatory explosion when using multiple feature flags statically. Generate different variants of a page at build time, rely on to only build a specific combinations on demand, and more.Incremental Static Regeneration

We also improved the by splitting it across different frameworks and explicitly listing all providers that have adapters for the Flags SDK.Flags SDK documentation

Learn more about the and the .Flags SDK with SvelteKitprecompute pattern

Read more

flagssveltekitfeature-flagsperformanceedge

Source: original entry ↗

More from Vercel

Follow Vercel to get its new changes in your feed and email digest.

Feature

OpenAI Decisions API now available on AI Gateway

OpenAI's Decisions API is now accessible through Vercel's AI Gateway with an OpenAI-compatible endpoint, enabling decision models to answer typed questions and return probabilities, choices, and scores for routing, triage, and guardrails use cases. Support is available across the OpenAI SDK, AI SDK, HTTP API, and CLI with the latest versions.

ai-gatewayopenaiapidecisionssdks
Feature

Timestamp attributes now supported in Vercel Flags

Vercel Flags now supports timestamp attributes for entities, allowing you to create time-based targeting rules. Use this feature to run limited-time campaigns, show content between specific dates, or target users based on registration date.

flagstargetingfeaturetimestampscampaigns
Feature

Glyph Cluster now available in stealth on AI Gateway

Glyph Cluster, a reasoning model for coding and long-context analysis, is now available as a stealth model on Vercel's AI Gateway for Pro and Enterprise plan teams with purchased AI Gateway credits at no cost during the stealth period. The model supports function calling, streams responses, and can be accessed via AI SDK, OpenAI-compatible APIs, and coding agents.

ai-gatewaymodelscodingstealth
See all Vercel changes →