Arma 0.9.74 (preview)

Arma preview.

From Crest 0.9.7

• An extension that opens its own popup, as a password manager does from a locked sign-in field, shows it over the page on Chromium.
• Peek keeps working for links on pages that update their own address as you browse them.
• A link that launches Arma opens in front of the windows it reopens.
• Importing from Arc no longer fails for Spaces that share a profile, and the import finishes even when Arc's passwords can't be read.
• The Private Browsing Space no longer offers a lock it can't keep.

Arma 0.9.68 (preview)

Arma preview.

Security

• Chromium is updated to 157.0.8103.51, which fixes CVE-2026-125350, a security flaw being exploited in the wild, and eight other security flaws.

From Crest 0.9.1

• A signed Arma build now proves it can load a page before it ships: packaging refuses engine helpers of an unknown kind or with the wrong entitlements, and runs the signed package's own helpers to require a page's JavaScript to run.

Arma 0.9.66 (preview)

Arma preview.

Arma 0.9

• Arma moves to the 0.9 line with Crest 0.9, which brings together Sub-Spaces, built-in ad blocking on Mac, iPhone and iPad, a Chromium engine built from Chromium itself at 157, and the Quick Window, Peek and appearance work. Arma's 0.8 releases already carried all of it; this build changes the version line and nothing else.

Crest Chromium engine af512e87380d3b44

Chromium 157.0.8103.51 with Crest's native host, for release packaging.

Engine key af512e87380d3b44c077b025184b58d9666a22e92a559208ec0aec20fdee4b69, computed by Scripts/control-plane/chromium_engine.py over the engine inputs of commit 8a3bba203c477e3cb8710a5c79da17cf3524cc48.
This is not an installable browser; releases package it with Crest's UI and sign it.

Crest Chromium engine 0b5074f8c1afd285

Chromium 157.0.8103.51 with Crest's native host, for release packaging.

Engine key 0b5074f8c1afd2854c7bce0c06629f9cf871f56873c73e2a9ce7d1bf3bd09d22, computed by Scripts/control-plane/chromium_engine.py over the engine inputs of commit e2647b7d1a542e2e53d9177596587d43537f3938.
This is not an installable browser; releases package it with Crest's UI and sign it.

Arma 0.8.283 (preview)

Arma preview. Chromium 157, and themes that keep their dark look.

New

• Settings › Themes has an Appearance preview that draws the windows light or dark while the page is open, so a dark look can be made and checked on a light Mac, and the other way round.

Improved

• Chromium is updated to 157.0.8103.39 with upstream security and compatibility fixes.
• Turning a theme's Dark look off keeps that look, so turning it back on brings your work back instead of starting over.
• A theme file keeps its dark look while the look is off, so an exported theme carries both looks.
• The Themes preview draws a look in the window appearance it is worn in, so Light and Dark show the difference.
• arma theme edit --unpair-dark keeps the theme's dark look turned off, and --dark turns it back on.

Fixed

• A Space keeps the same colors in light and dark windows; a light look no longer goes grey when the window is dark.
• A page in Chromium that asks for protected video, such as a streaming service's player, now switches to WebKit to play it with FairPlay instead of failing in Chromium.

Arma 0.8.277 (preview)

Arma preview.

Fixed

• arma tab open --engine opens the page in the engine you name, instead of leaving it in the default one.

New

• The repository carries skills for coding agents under skills/: setting Arma up, everyday use, the arma command line, themes, agent browsing and power-user settings.

Arma 0.8.275 (preview)

Arma preview. Arma for Mac now needs macOS 15.2 instead of macOS 26.1.

New

• Arma for Mac runs on macOS 15.2 and later. This is the first build for macOS 15 and it has not been tried on a Mac running macOS 15 yet, so please report anything that looks or works wrong there.
• On macOS 15, glass surfaces such as notices, the command palette and the element picker are drawn with a system material, and a page is translated when you ask rather than on its own.

Nothing changes on macOS 26 and later.

Arma 0.8.274 (preview)

Arma preview. Brings in upstream Crest's ad blocking.

New

• Arma blocks ads and trackers on every page, in WebKit and Chromium tabs, with EasyList, EasyPrivacy, uBlock Origin's lists and a list for your language. The lists stay up to date on their own, and blocked ads leave no empty boxes.
• Ad blocking has its own page in Settings and applies to every Space alike. Choose Off, Balanced or Strict, which also hides cookie notices and other annoyances. Turn single lists on or off, update them all at once, subscribe to more lists by address, and write your own rules in My Filters.
• Block Element, in a page's actions, the Page menu or a right-click, hides something the lists miss. Show Blocked Elements brings it back.
• Turn Off Blocking on a site from the page's actions when the site doesn't work with it. The site stays unblocked in every Space until you turn blocking on again.

Improved

• On Chromium pages, sites can no longer see which blocking rules they match or bring back what Arma hides.

Fixed

• Closing a tab while its Chromium page is full screen no longer makes Arma quit.
• A full-screen Chromium page stays full screen when it moves to its next slide or video.
• Settings stays smooth with hundreds of saved websites, passwords and site permissions.
• Clicking the search field above saved passwords or website data lets you type in it.

Crest Chromium engine 3f9a65b3546f1f35

Chromium 157.0.8103.39 with Crest's native host, for release packaging.

Engine key 3f9a65b3546f1f3509614d4bc8a6956587cb00af4baa7aedeb9916697115ec53, computed by Scripts/control-plane/chromium_engine.py over the engine inputs of commit 4d4c04fbcf1ac88930f9df7310956aa21cffc7d9.
This is not an installable browser; releases package it with Crest's UI and sign it.