Release / 23 Jun 2026 / with chrome-devtools-mcp-v1.3.0

Chrome DevTools for agents chrome-devtools-mcp-v1.4.0

Find which objects keep a heap object alive.

Before you upgrade to chrome-devtools-mcp-v1.4.0

1 to fix

Behavior changedOpen, select, close and navigate Chrome tabs.

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Action requiredList and execute WebMCP tools exposed by a page.Affects: Users enabling experimental WebMCP.Inferred

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Heap inspection adds dominators, outgoing edges and retaining paths; screenshot dimensions and encoding can be configured.

Install [email protected] from npm; requires Node.js and Chrome. Optional tools may require flags.

ImprovedInspect heap statistics, class instances and retainers to investigate memory use.

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ImprovedCapture screenshots and accessibility-tree snapshots of web pages.

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Now worksList browser network requests and inspect request details.

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Seeded by @iluxav with Codex, from the release's public sources. Each change links to its evidence.