---
name: Browserbase Changelog
slug: browserbase-changelog
type: scrape
source_url: https://www.browserbase.com/changelog
organization: Browserbase
organization_slug: browserbase
total_releases: 12
latest_date: 2026-04-05
last_updated: 2026-04-11
tracking_since: 2025-10-29
canonical: https://releases.sh/browserbase/browserbase-changelog
organization_url: https://releases.sh/browserbase
---

<Summary type="rolling" window-days="90" release-count="11">
Browserbase shifted toward embedding browser automation deeper into agent workflows. Model Gateway abstracted away model provider friction for Stagehand, letting developers switch between OpenAI, Anthropic, and Gemini with a one-line configuration change. Browserbase Functions shipped execution directly on their infrastructure—agents now deploy alongside browser sessions, cutting latency by up to 70% and eliminating orchestration overhead. On the data side, Fetch API arrived as a lightweight alternative to full browser sessions (~$1 per 1,000 pages), and Browserbase Search enabled agents to query the web in a single call, each grounded in the platform's existing infrastructure rather than external dependencies.
</Summary>

<Summary type="monthly" period="March 2026" release-count="5">
March expanded Browserbase's core capabilities for agent developers. The Fetch API arrived for lightweight content retrieval without browser overhead, while the new Search API powered by Exa lets agents query the web before taking action. Infrastructure improvements landed too: the MCP server migrated to Browserbase-managed endpoints for better reliability, and free plan concurrency tripled to 3 browsers. A partnership with Prime Intellect made browser agent training more accessible through scalable Browserbase environments and the BrowserEnv reinforcement learning framework.
</Summary>

<Release date="April 5, 2026" published="2026-04-05T00:00:00.000Z" url="https://www.browserbase.com/changelog#use-stagehand-with-any-model">
## Use Stagehand with any model

Managing model providers adds friction to every Stagehand setup. Model Gateway removes that layer by handling routing, retries, and billing at market price with no markup. Pass your Browserbase API key and pick a model—switch between OpenAI, Anthropic, and Gemini with a one-line change. No new accounts, reworked setup, or extra friction needed.
</Release>

<Release date="March 25, 2026" published="2026-03-25T00:00:00.000Z" url="https://www.browserbase.com/changelog#train-and-evaluate-browser-agents-with-browserbase-prime-int">
## Train and Evaluate browser agents with Browserbase & Prime Intellect

Browserbase and Prime Intellect partnered to make browser agent training more accessible. BrowserEnv, a reinforcement learning environment built on Browserbase's infrastructure, is now available at browserenv.com, providing scalable browser environments and live website access for training.
</Release>

<Release date="March 17, 2026" published="2026-03-17T00:00:00.000Z" url="https://www.browserbase.com/changelog#browserbase-search">
## Browserbase Search

Browserbase Search, powered by Exa, enables agents to search the web with a single API call. Send a plain-text query and get back URLs your agent needs to act on next. Results return URL, title, and description (up to 25 results). Each plan includes 1,000 free searches.
</Release>

<Release date="March 16, 2026" published="2026-03-16T00:00:00.000Z" url="https://www.browserbase.com/changelog#concurrency-on-the-free-plan-moved-from-1-to-3">
## Concurrency on the free plan moved from 1 to 3

Free users can now use up to 3 browsers concurrently, increased from the previous limit of 1 browser.
</Release>

<Release date="March 14, 2026" published="2026-03-14T00:00:00.000Z" url="https://www.browserbase.com/changelog#mcp-server-now-runs-on-our-infrastructure">
## MCP Server now runs on our infrastructure

The Browserbase MCP server was migrated to Browserbase-managed infrastructure to improve reliability and simplify updates. MCP is now served from Browserbase-managed endpoints with improved stability for longer-running sessions. No action required for existing users.
</Release>

<Release date="March 11, 2026" published="2026-03-11T00:00:00.000Z" url="https://www.browserbase.com/changelog#the-browserbase-fetch-api-is-available-today">
## The Browserbase Fetch API is available today

Introducing the Fetch API for Browserbase. Provide a URL and receive the page content without requiring a browser session. Fast, cheap (~$1 per 1,000 pages), and designed for agents that need to read the web efficiently.
</Release>

<Release date="February 17, 2026" published="2026-02-17T00:00:00.000Z" url="https://www.browserbase.com/changelog#stagehand-caching">
## Stagehand Caching

Stagehand now automatically caches results of repeated actions to eliminate redundant LLM calls. When encountering a page structure it's seen before, it serves the cached result instantly. Results in up to 2x faster execution and ~30% cost reduction on repeat workflows. Caching is conservative by default and scoped to your project.
</Release>

<Release date="February 12, 2026" published="2026-02-12T00:00:00.000Z" url="https://www.browserbase.com/changelog#browserbase-on-the-vercel-marketplace">
## Browserbase on the Vercel Marketplace

Browserbase is now a one-click integration on the Vercel Agent Marketplace. Agents deployed on Vercel Sandbox can connect to remote browsers over CDP. Also launching Web Bot Auth support with Vercel, enabling agents to send cryptographically signed requests that Vercel verifies, allowing reliable browsing of Vercel-hosted deployments without security blocks.
</Release>

<Release date="February 10, 2026" published="2026-02-10T00:00:00.000Z" url="https://www.browserbase.com/changelog#browserbase-functions">
## Browserbase Functions

Deploy agents and automations directly to Browserbase to run alongside their browser sessions. Define, deploy, and invoke functions while Browserbase handles execution, browser lifecycle, and results. Benefits include up to 70% faster latency, fewer moving parts, async/long-running executions with results tied to real browser sessions, and local development mirroring production. Available in TypeScript.
</Release>

<Release date="January 15, 2026" published="2026-01-15T00:00:00.000Z" url="https://www.browserbase.com/changelog#session-recordings">
## Session Recordings

Session recordings rebuilt from the ground up using CDP-based screencast instead of DOM-based replay. Now offers pixel-accurate screen recordings, event-driven frame capture, asynchronous constant-time video encoding with HLS, seamless multi-tab playback, secure signed segment delivery with CDN enforcement, and just-in-time encoding for low costs and fast playback.
</Release>

<Release date="January 13, 2026" published="2026-01-13T00:00:00.000Z" url="https://www.browserbase.com/changelog#stagehand-now-works-with-every-language">
## Stagehand now works with every language

Stagehand v3 extends support across all languages including Python, Go, Java, Ruby, and Rust. The canonical implementation of Stagehand powered by the newest features benefits every SDK immediately, enabling faster shipping and improved extensibility. Includes revamped Python with v3 support.
</Release>

<Release date="October 29, 2025" published="2025-10-29T00:00:00.000Z" url="https://www.browserbase.com/changelog#stagehand-v3">
## Stagehand v3

Major release featuring a new foundation for Stagehand with improved speed and flexibility. Includes 20-40% speed increase across act, extract, and observe calls; compatibility with Playwright, Puppeteer, and Patchright; automatic action caching; non-AI primitives (page, locator, frameLocator, deepLocator); bun compatibility; simplified extract schemas; CSS selector support; targeted extract and observe across iframes and shadow roots; and more intuitive type names.
</Release>