0.3.4

Multi-page sessions

• Concurrent page navigations in the script runtime
• Runner and session support for multiple pages
• cli: fetch multiple URLs in one invocation

New Web APIs

• Navigator.sendBeacon
• HTMLSelectElement.add
• Node.moveBefore
• HashChangeEvent + Window hashchange event
• document.domain setter
• Worker is now a proper DedicatedWorkerGlobalScope

Web API behavior / fixes

• replaceWith with a DocumentFragment appends its children
• innerHTML parsing respects the target element
• Reject XMLHttpRequest.send() when a send is already active
• Cookie accessor moved from HTMLDocument to Document
• innerText uses the StyleManager's visibility

CSS / styling

• getComputedStyle resolves inline style= declarations
• Normalize fractions without a leading 0
• Skip inline-style allocation for elements without inline styles (perf)
• Skip CSSStyleProperty creation when there is no style attribute (perf)

URL

• Reworked URL.resolve on top of the new URL implementation

CDP (Chrome DevTools Protocol)

• Follow redirects on request-interception fulfillment
• Fix Page.frameAttached params double-wrapping that broke sub-frame interception
• Page.getLayoutMetrics returns the browser's viewport
• Store viewport override at the browser level

HTTP / Networking

• Update libcurl and nghttp2
• Work around libcurl Brotli trailing-byte rejection (CURLE_WRITE_ERROR)
• Fix cross-origin MessageEvent.source WindowProxy identity

Telemetry

• Smaller telemetry payload
• Telemetry worker moved to its own thread

Stability / crash fixes

• Fix handlescope corruption on iframe load
• Prevent double-free on BrowserContext deinit with pending interception (UAF)
• Fix crash on requestAnimationFrame from a Worker
• Flush deferred transfers after a synchronous stylesheet fetch

CLI / Ops

• LIGHTPANDA_DISABLE_CORE_DUMP to suppress crash core dumps
• New --strip-mode invisible

Build / CI

• Update V8
• Generate a versions.json file
• Release: Docker registry login + read permissions, homebrew workflow fixes, trigger homebrew-browser formula update after release