Zenium v0.5.87

Highlights

A patch on top of 0.5.86; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Mouse back and forward navigate once on Linux (#810) – On Linux, the mouse side buttons no longer go back or forward two pages per press; Chromium handles them and Zenium no longer repeats the navigation.
• Agents get their session back after a reconnect (#813) – An AI agent that reconnects after losing its key gets its session and tab group back by its name instead of starting over.
• Security updates (#815, #817, #819) – Electron 44.10.0 on Node.js 24.22.1, undici, and the October 2026 dependency sweep (vite, vitest, happy-dom, zod, fast-uri, xml2js, brace-expansion and more); builds now use Node.js 22.23.4.
• Build (#675) – The nightly Android drivers use actions/download-artifact v8.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.87 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.87-x64-setup.exe	133 MB
Windows 11 on ARM	arm64	zenium-0.5.87-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.87-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.87-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.87-x86_64.AppImage	172 MB
Linux (AppImage)	arm64	zenium-0.5.87-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.87_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.87_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.87.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.87-x86_64.AppImage
./zenium-0.5.87-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.87_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.87-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• agent: a reconnect that lost its key gets its session and tab group back by its name by @BenItBuhner in #813
• Security: upgrade Electron to 44.9.3 and undici for October 2026 advisories by @BenItBuhner in #815
• security: CVE sweep Oct 2026 by @BenItBuhner in #817
• Bump Electron 44.9.3 to 44.10.0 for the Node.js security fix by @BenItBuhner in #819
• chore(deps): bump actions/download-artifact from 7 to 8 in the github-actions group across 1 directory by @dependabot[bot] in #675
• fix(linux): avoid duplicate mouse navigation by @qiantao94 in #810
• feat(tabs): toggle between recently used tabs by @qiantao94 in #809
• Revert "feat(tabs): toggle between recently used tabs (#809)" by @BenItBuhner in #820

New Contributors

• @qiantao94 made their first contribution in #810

Full Changelog: v0.5.86...v0.5.87

Zenium v0.5.86

Highlights

A patch on top of 0.5.85; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Fix desktop new-tab search and recent tiles (#807) – Desktop new-tab field searches or navigates this tab; recent tiles use shared site captions.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.86 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.86-x64-setup.exe	134 MB
Windows 11 on ARM	arm64	zenium-0.5.86-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.86-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.86-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.86-x86_64.AppImage	171 MB
Linux (AppImage)	arm64	zenium-0.5.86-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.86_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.86_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.86.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.86-x86_64.AppImage
./zenium-0.5.86-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.86_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.86-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• Fix desktop new-tab search and recent tiles by @BenItBuhner in #807

Full Changelog: v0.5.85...v0.5.86

Zenium v0.5.85

Highlights

A patch on top of 0.5.84; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Settings System is in-app proxy configuration (#808) – Settings → System is first-class in-app proxy config (named proxies, per-domain rules, per-tab override, agent grants). OS panel stays as a secondary door.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.85 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.85-x64-setup.exe	134 MB
Windows 11 on ARM	arm64	zenium-0.5.85-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.85-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.85-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.85-x86_64.AppImage	171 MB
Linux (AppImage)	arm64	zenium-0.5.85-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.85_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.85_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.85.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.85-x86_64.AppImage
./zenium-0.5.85-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.85_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.85-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• Settings System is in-app proxy configuration by @BenItBuhner in #808

Full Changelog: v0.5.84...v0.5.85

Zenium v0.5.84

Highlights

A patch on top of 0.5.83; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Settings lists every notable agent skill target (#805) – Settings can install the agent skill for Claude Code, Cursor, Codex, OpenCode, Gemini CLI, GitHub Copilot, and the shared skills folder.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.84 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.84-x64-setup.exe	134 MB
Windows 11 on ARM	arm64	zenium-0.5.84-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.84-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.84-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.84-x86_64.AppImage	171 MB
Linux (AppImage)	arm64	zenium-0.5.84-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.84_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.84_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.84.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.84-x86_64.AppImage
./zenium-0.5.84-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.84_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.84-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• Settings lists every notable agent skill target by @BenItBuhner in #805

Full Changelog: v0.5.83...v0.5.84

Zenium v0.5.83

Highlights

A patch on top of 0.5.82; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Copying a link is Copy Link Address (#802) – On desktop and Android, a row that copies a site's or an entry's address now says Copy Link Address, or Copy Link Addresses when several are selected. Copying the page you are on stays Copy Link.
• Copying a page says Link copied (#804) – On desktop, copying the page you are on now toasts Link copied, or Link copied as Markdown, the same words Android already uses.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.83 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.83-x64-setup.exe	134 MB
Windows 11 on ARM	arm64	zenium-0.5.83-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.83-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.83-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.83-x86_64.AppImage	171 MB
Linux (AppImage)	arm64	zenium-0.5.83-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.83_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.83_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.83.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.83-x86_64.AppImage
./zenium-0.5.83-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.83_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.83-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• Pin same-URL document hops on Android webRequest by @BenItBuhner in #792
• String table PR-3a: Copy Link Address lives once by @BenItBuhner in #794
• test: wait for matcher.ready via settled() at three idle-slot sites by @BenItBuhner in #793
• Android: dialog-policy demo and test wording (S2 nits) by @BenItBuhner in #796
• Flag sweep rows whose Java heap peaks near the cap by @BenItBuhner in #795
• Make the extension side panel a named region, not an aside by @BenItBuhner in #798
• Android: unique still names in the loading demo (A4 nit) by @BenItBuhner in #797
• Comments: the default-browser campaign is the phone's sheet by @BenItBuhner in #799
• Android: forget toast/screenshot clears a held finger by @BenItBuhner in #800
• Android: Last-import glyph is 16 in JSX by @BenItBuhner in #801
• String table PR-3b: Copy Link Address on entry rows by @BenItBuhner in #802
• Android: re-pin Copy Link Address demo waits by @BenItBuhner in #803
• String table PR-3c: copying a page says Link copied by @BenItBuhner in #804

Full Changelog: v0.5.82...v0.5.83

Zenium v0.5.82

Highlights

A patch on top of 0.5.81; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Updating from inside the app works again (#791) – Restart to update now installs the new version and reopens Zenium on Windows, Linux and macOS. On macOS the app replaces itself instead of opening a disk image.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.82 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.82-x64-setup.exe	134 MB
Windows 11 on ARM	arm64	zenium-0.5.82-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.82-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.82-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.82-x86_64.AppImage	171 MB
Linux (AppImage)	arm64	zenium-0.5.82-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.82_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.82_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.82.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.82-x86_64.AppImage
./zenium-0.5.82-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.82_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.82-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• Android: unload probe latency harness for a device run (A10 step 1) by @BenItBuhner in #790
• Desktop: updating from inside the app works again (P0) – quit questions before the install, per-package install and relaunch, macOS in-place swap, CI update proof by @BenItBuhner in #791

Full Changelog: v0.5.81...v0.5.82

Zenium v0.5.81

Highlights

A patch on top of 0.5.80; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Cancel on "Leave site?" keeps the page (#789) – On Android, tapping Cancel on "Leave site?" now keeps you on the page, and the address bar shows its address again.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.81 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.81-x64-setup.exe	134 MB
Windows 11 on ARM	arm64	zenium-0.5.81-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.81-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.81-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.81-x86_64.AppImage	171 MB
Linux (AppImage)	arm64	zenium-0.5.81-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.81_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.81_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.81.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.81-x86_64.AppImage
./zenium-0.5.81-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.81_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.81-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• Android: the rest of the trailing slot at 16 — tab search status badges and the fenced rows (A9) by @BenItBuhner in #788
• Android: Cancel on “Leave site?” keeps the page (A7, P1) by @BenItBuhner in #789

Full Changelog: v0.5.80...v0.5.81

Zenium v0.5.80

Highlights

A patch on top of 0.5.79; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Banners no longer cover the tab overview on Android (#786) – On Android phones and tablets, banners such as Show Reader View? no longer draw over the open tab overview; one already showing steps aside and comes back when you close the overview, and one that arrives meanwhile waits until then.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.80 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.80-x64-setup.exe	134 MB
Windows 11 on ARM	arm64	zenium-0.5.80-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.80-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.80-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.80-x86_64.AppImage	171 MB
Linux (AppImage)	arm64	zenium-0.5.80-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.80_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.80_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.80.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.80-x86_64.AppImage
./zenium-0.5.80-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.80_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.80-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• Android: sheet trailing indicators at 16, the #687 guard gone, the Spaces drawer's refused reorder glides home (A6) by @BenItBuhner in #787
• Android: the banner stack counts the open overview as a cover (A4) by @BenItBuhner in #786

Full Changelog: v0.5.79...v0.5.80

Zenium v0.5.79

Highlights

A patch on top of 0.5.78; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Agents answer dialogs on hidden tabs on Android (#781) – When an AI agent works in a tab you aren't looking at, the page's alerts, confirms, prompts and "Leave site?" questions are answered by the agent's policy without interrupting the tab you're using; the tab in front of you keeps its dialogs as before.
• Menus now say Extensions and Mods (#784) – On desktop and Android, the Add-ons and Themes page is now called Extensions and Mods everywhere you open it, and menu items use an ellipsis only when they open a dialog, so Search Tabs and the settings rows drop it while Translate Page… gains it.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.79 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.79-x64-setup.exe	134 MB
Windows 11 on ARM	arm64	zenium-0.5.79-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.79-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.79-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.79-x86_64.AppImage	171 MB
Linux (AppImage)	arm64	zenium-0.5.79-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.79_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.79_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.79.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.79-x86_64.AppImage
./zenium-0.5.79-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.79_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.79-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• Services pass 17, item S1 (the Lead's): retire settings.confirmCloseAll – the Settings row leaves, the field and its default gone after Android's A3 (#775), the sync reader's tolerance pinned (both stages in) by @BenItBuhner in #769
• Services P17 s50: a host-reported beforeunload stay headlines the agent's navigating call by @BenItBuhner in #783
• android: agents answer dialogs on hidden tabs from their dialog policy (W6-S29-f, the Android half of S2) by @BenItBuhner in #781
• strings: the app menu and the page (PR-2b) – the app menu's rows, the page's sites and the four shared acts read the table by @BenItBuhner in #784
• android: the Kotlin pins read the string table's words after #784 (PR-2b) by @BenItBuhner in #785

Full Changelog: v0.5.78...v0.5.79

Zenium v0.5.78

Highlights

A patch on top of 0.5.77; the upgrade notes for people coming from Zen are the same as in 0.3.0.

• Close all tabs no longer asks on Android (#775) – On Android, Close All Tabs in the tab overview closes your tabs at once and the toast's Undo brings them all back; pinned tabs stay, and only closing your private tabs still asks first.

Upgrading

• Windows and Linux upgrade from Zen or from Zenium 0.3.x / 0.4.x / 0.5.x automatically (profile migration from Zen included); existing installs pick this release up through Settings → Updates.
• macOS: coming from Zen, delete the old Zen.app manually once Zenium has started; coming from 0.3.x / 0.4.x / 0.5.x, Zenium downloads and opens the new disk image. First launch: Open Anyway or right-click → Open.
• Android: coming from Zen (0.2.0 or earlier), install this APK and then uninstall the old Zen build. Coming from 0.3.x / 0.4.x / 0.5.x, it installs in place – open the APK over the installed app or let the in-app updater apply it; every release from 0.3.0 onward carries the same signing key.

Zenium 0.5.78 for Windows, macOS, Linux and Android. Pick the package for your device below.

Downloads

Platform	Architecture	Download	Size
Windows 10 / 11	x64	zenium-0.5.78-x64-setup.exe	134 MB
Windows 11 on ARM	arm64	zenium-0.5.78-arm64-setup.exe	137 MB
macOS (Apple Silicon)	arm64	zenium-0.5.78-arm64.dmg	159 MB
macOS (Intel)	x64	zenium-0.5.78-x64.dmg	165 MB
Linux (AppImage)	x64	zenium-0.5.78-x86_64.AppImage	171 MB
Linux (AppImage)	arm64	zenium-0.5.78-arm64.AppImage	173 MB
Debian / Ubuntu (.deb)	x64	zenium_0.5.78_amd64.deb	133 MB
Debian / Ubuntu (.deb)	arm64	zenium_0.5.78_arm64.deb	128 MB
Android 8.0+	universal	zenium-0.5.78.apk	13 MB

Installing

Windows

Run the installer; it installs Zenium for the current user and creates a desktop shortcut. Pick the arm64 installer on a Windows-on-ARM device (Snapdragon X and similar), otherwise x64.
The installer is not code-signed yet, so SmartScreen shows "Windows protected your PC" on first run: choose More info → Run anyway.

macOS

Open the disk image and drag Zenium into Applications. Apple Silicon Macs (M1 and later) use the arm64 image, Intel Macs the x64 image.
This build is not signed with an Apple Developer ID or notarized (it carries an ad-hoc signature so the bundle is sealed), so macOS blocks the first launch with "Apple could not verify…": choose Open Anyway under System Settings → Privacy & Security, right-click the app and choose Open, or run xattr -dr com.apple.quarantine /Applications/Zenium.app once.

Linux

AppImage (any distribution):

chmod +x zenium-0.5.78-x86_64.AppImage
./zenium-0.5.78-x86_64.AppImage

AppImages need FUSE 2 (sudo apt install libfuse2 on Ubuntu 22.04+). Debian / Ubuntu:

sudo apt install ./zenium_0.5.78_amd64.deb

Android

Download the APK on the device and open it; allow installs from your browser when Android asks. Requires Android 8.0 or newer; containers need a WebView from Chrome 111 or newer.
Upgrades from 0.3.0 onward install in place – open the new APK over the installed app, or let the in-app updater apply it (Settings → Updates). Every release since 0.3.0 is signed with the repository's CI debug key (android/ci-debug.keystore, the same key on every build); Android treats it like any debug-signed app. Only when coming from 0.2.0 or earlier does the old build have to be uninstalled once. Switching to the project release key later will need one more uninstall.

Coming from Zen (v0.2.0 and earlier)

The browser is now called Zenium, and its packages, app id (io.github.benitbuhner.zenium) and install locations carry the new name. Your profile moves with you: on first launch Zenium takes over the Zen user-data directory (tabs, spaces, settings, cookies), and a zen-sync folder becomes zenium-sync.

• Windows: the installer removes the Zen installation (and its shortcuts) for you; the in-app updater of Zen 0.2.0 does the same when it installs this release.
• macOS: drag Zenium into Applications and delete the old Zen.app yourself once Zenium has started.
• Linux: the .deb replaces the zen-chromium package (apt install ./…deb or dpkg -i); the AppImage simply replaces the old file, and the in-app updater does so on its own. The old zen-chromium command keeps working as an alias of zenium for this release.
• Android: Zenium is a new app and installs alongside Zen; nothing can move the old app’s data. Uninstall Zen once Zenium is installed.

Verifying a download

Every file is listed in SHA256SUMS.txt and has a signed build provenance attestation that ties it to the commit and workflow run that produced it.

sha256sum --check --ignore-missing SHA256SUMS.txt
gh attestation verify zenium-0.5.78-x64-setup.exe --repo BenItBuhner/Zenium

Automatic updates

Zenium checks this release's update-manifest.json (version, per-package download URL, size and SHA-256) on startup and every few hours – see Settings → Updates.

• Windows and Linux (AppImage, deb) download the update in the background and install it when Zenium restarts.
• macOS: this build is not signed by Apple, so macOS cannot swap it in place; Zenium downloads the disk image, verifies it and opens it for you to drag over the old app.
• Android downloads the APK, verifies it and hands it to the package installer, which upgrades the installed app in place (every release from 0.3.0 onward carries the same signing key). Only installs of 0.2.0 or earlier need to be uninstalled once.
• The manifest is not signed yet (no UPDATE_MANIFEST_SIGNING_KEY configured); the app relies on HTTPS and the per-file SHA-256.
• electron-updater feeds: latest-arm64.yml, latest-linux-arm64.yml, latest-linux.yml, latest-mac.yml, latest.yml.

What's changed

Other changes

• android: Close All Tabs closes every tab at once with Undo and asks nothing; Close Private Tabs keeps its confirm, no Don't ask again (A3) by @BenItBuhner in #775

Full Changelog: v0.5.77...v0.5.78