WebStorm 2025.3 introduces a range of enhancements and new features, focusing on improving TypeScript type evaluation, monorepo support, and remote debugging capabilities. This release includes a service-powered type engine for more accurate TypeScript evaluations, better module resolution, and support for pnpm and Nx workspaces. The AI Assistant has been upgraded with Claude Agent and Junie integration, offering enhanced chat capabilities. Developers can now use WebStorm's JavaScript debugger in remote environments like WSL and Docker, with additional support for launching browsers on local machines. The update also aligns CSS syntax with the latest specifications, supports Vitest 4, and includes numerous quality-of-life improvements for frameworks such as Angular, Vue, Astro, and Prettier. A new unified JavaScript Runtime settings page consolidates configuration for Node.js, Bun, and Deno, and the introduction of the Islands theme offers a refreshed visual experience.