Changelog: what changed in each public release.

Pro automation update: create profiles through the local API and MCP, a global MCP switch and profile access modes, plus press-and-hold, drag and element positions.

• The local API adds single creation (POST /v1/profiles) and batch creation (POST /v1/profiles/batch); MCP adds prism_create_profile and prism_create_profiles. Up to 50 profiles per batch, saved only when all of them pass validation; nothing launches automatically.
• Creation can set the name, group, tags, note, proxy, startup pages, hardware template and fingerprint options, installed extensions and a pinned kernel version; invalid input names the exact field.
• Retrying with the same request key (Idempotency-Key or requestKey) and the same content within 24 hours returns the original profiles, even after Prism restarts.
• MCP adds a global switch, the “All profiles, including new ones” access mode and individual profile settings (Use global mode / Always allow / Always block); “Allow AI to create profiles” is a separate switch, off by default. Upgrading keeps your existing permissions and never widens access automatically.
• MCP adds prism_click_and_hold (press and hold), prism_drag (drag) and prism_get_element_rect (element position); the key tools can hold keys down for a set time, and page snapshots include the positions of actionable elements. MCP now has 58 tools.
• Without a proxy, new profiles take your computer’s system language, Accept-Language and time zone by default.
• After upgrading, reconnect Prism MCP in your AI client to refresh its tool list. The macOS and Windows installers still bundle the Chromium 144 Community fingerprint kernel.

13 interface languages, chosen automatically from your system language.

• 13 interface languages: Simplified Chinese, Traditional Chinese, English, Russian, Vietnamese, Thai, Brazilian Portuguese, French, Ukrainian, Spanish, Turkish, Japanese and Hindi.
• New language selector in the top-right corner; changes apply immediately and are saved locally.
• Until you choose a language, Prism starts in your computer’s preferred system display language, or in English if that language is not supported.
• The interface language is separate from profile settings: switching it never changes profile names, notes, groups, tags or fingerprint languages and time zones.
• Localized menus, dialogs, forms, status messages and date formats, with consistent terminology.
• The macOS and Windows installers still bundle the Chromium 144 Community fingerprint kernel.

Better readability, a theme switch and revised kernel options.

• New light / dark theme toggle in the top-right corner; your preference is saved locally.
• The default home page for new profiles is now the Prism Browser website.
• Larger interface text overall, with adjusted layouts for buttons, tables, tags and dialogs.
• Windows kernel management offers Chromium 150 and 153 as separate choices.
• The macOS and Windows installers both bundle the Chromium 144 Community fingerprint kernel.
• Starting with this release, new product features, fixes and later source code are no longer synced to the public repository.

Improved extension management, profile list actions and local AI / MCP automation.

• Install extensions by pasting a Chrome Web Store URL; downloads can use a direct connection, the system proxy or a profile’s proxy.
• Extensions support “Enable for All Profiles” to load them in every profile; “Edit” opens the extension’s source folder directly.
• The profile list can be sorted by name, group / tags, status, proxy, fingerprint and seed, and proxy info shows the region.
• MCP (Pro): stable stdio connection with status checks and automatic recovery; task sessions are isolated between multiple Agents.
• MCP (Pro): works with iframes and extension pages, supports file uploads, form controls, page waits and new-window detection, and adds a compact page-reading mode.

Adds the Prism Pro multi-window synchronizer (pre-release).

• Syncs page clicks, scrolling, keyboard input and tab actions.
• Address bar and web page input field sync on macOS and Windows; on Windows, real-time address bar sync works without the main window flickering.
• Fixes syncing of text boxes, password fields and React / Vue controlled inputs on some Windows systems.
• Better grid layout for 4 or more browser windows.

First public beta (pre-release).

• Community creates unlimited local browser profiles for free, each with its own cookies, cache, extensions, proxy and fingerprint settings.
• Community bundles the Chromium 144 fingerprint kernel; Pro offers Chromium 150, the automation API, scheduled tasks and local AI / MCP.
• Installer and portable versions for macOS Apple Silicon and Windows x64.
• The packages are not code-signed by Apple or Microsoft, so you may need to confirm manually the first time you open the app.