Changelog

What changed in each release.

All notable changes to Mullion. Versions follow semantic versioning.

2.1.1 — 2026-10-02

Fixed

• The project page shows only your chosen terminal's button: "Mullion Terminal" when Mullion Terminal is your terminal, "Terminal here" when it's the built-in one, instead of both. The project's Terminal tab stays either way, and pages already open update as soon as you switch in Settings → Terminal.

2.1.0 — 2026-10-02

Mullion Terminal as your terminal, project tabs on the Sites page, and a round of Windows fixes: Mullion now recognizes its own servers after setup, mullion restart no longer breaks MySQL, and the Windows icon matches the app icon.

Added

• Mullion Terminal. The panel can use the standalone Mullion Terminal app as your terminal. A first-run dialog asks which terminal you want and installs Mullion Terminal if you pick it. Settings → Terminal switches between the two and installs or updates the app. Terminal buttons then open the project folder as a new tab there; a project page's own Terminal tab stays built-in and gains an "Open in Mullion Terminal" button. New CLI commands: mullion terminal [path|site] and mullion terminal install.
• Project tabs live on the Sites page. Open projects show as tabs next to a fixed "All" tab, and the separate "Projects" sidebar entry is gone. Clicking "Sites" in the sidebar closes every project tab.

Changed

• Windows icon. The exe, taskbar, tray and panel window use the app icon's look (a midnight tile with the coral mark) instead of the bare coral square. Explorer's Properties now shows the right version.
• Faster Ports page on Windows. Port owners are read straight from Windows instead of one PowerShell call per port (about 7s → 0.3s).

Fixed

• Windows: Mullion treated its own servers as foreign. Setup runs as administrator, so the servers it started did too, and Windows hides their paths from normal programs. mullion doctor reported a "FOREIGN caddy" and a foreign MySQL, the panel's Start MySQL refused, and the Ports page listed Mullion's own ports as conflicts. Mullion now recognizes them, and setup hands the servers back to your normal session when it finishes, so restart, the panel and the tray can manage them.
• mullion restart could leave MySQL stopped ("ibdata1 must be writable"): it started the new server while the old one was still closing its data files. Stopping MySQL now waits for it to exit.
• Choosing Mullion Terminal could be forgotten, sending the sidebar's Terminal back to the built-in page: two settings saved at once overwrote each other.
• mullion link after a declined UAC prompt said "already links" instead of retrying the hosts file update. Linking the same folder again now retries, in the CLI and the panel.
• Composer showed as "not installed" on the PHP page when the panel was started from Git Bash or Windows Terminal (colored version output).
• Windows paths in the generated Caddyfile no longer have doubled backslashes.
• Settings showed "—" for free space before the first backup existed, and "Show in Finder" on Windows when opened first. The Sites page says php-cgi (FastCGI) on Windows instead of php-fpm.

2.0.0 — 2026-09-25

The biggest release so far: a new identity, a native macOS app, a page for every project (commands, workers, packages, Git, terminal, domains), a built-in terminal, PostgreSQL and MongoDB next to MySQL, backups, and a Ports & SSL page.

Highlights

• New look. New logo and app icon, and a redesigned "Midnight + coral" control panel with a dark mode and in-app dialogs in place of browser pop-ups.
• Mullion.app on macOS. Setup puts a native app in /Applications (mullion app reinstalls it). It uses real windows, and those windows merge into macOS window tabs. On Windows the panel opens in its own app window.
• Sites as cards. Mullion detects each project's framework and language. The page has search, filters, pinning, and project tabs.
• A page for every project, with Commands, Workers, Packages, Git, Terminal, Domains and Settings tabs.
• A built-in terminal with tabs and suggestions as you type. Each project's own PHP and Node versions are on PATH.
• PostgreSQL and MongoDB, alongside MySQL/MariaDB, each with its own admin tool (pgAdmin 4 and mongo-express). Also new: backups and restore.
• Ports & SSL. Shows every port Mullion uses and who holds it. You can change ports, manage the local certificate authority, and turn on wildcard DNS.

Added

• Sites page
  • Cards detect the framework (Laravel, Symfony, WordPress, Drupal, CodeIgniter, Yii, CakePHP, Slim, Nuxt, Next.js, SvelteKit, Astro, Angular, Remix, Vue, React, Svelte, Vite, …) with its major version, the language, and the package manager.
  • Search by name, domain, path or framework; filter by Backend, Frontend or Pinned; pin sites to the top.
  • Copy path and Show in Finder/Explorer from each card. Cards also show the Git branch and a count of changes.
  • Project tabs keep several projects open side by side. A project can also open in its own window.
• Project page
  • Commands — artisan (Laravel), bin/console (Symfony), Composer and npm scripts. Commands run with live output, and you can mark favorites. Quick actions cover the common tasks.
  • Workers — supervised queue workers, the scheduler (schedule:work, no cron needed), Horizon, Reverb, Symfony Messenger, or any custom command.
    • A worker can start with the stack (autostart).
    • Crashed workers restart with backoff (1s, 2s, 4s… capped at a minute). After 5 crashes within 2 minutes a worker is marked crash-looping and retries stop.
    • Each worker has a log in ~/.mullion/logs.
  • Packages — search Packagist and the npm registry, then install or remove packages. Both can go in as dev dependencies.
  • Git
    • Status, stage/unstage, discard, and a side-by-side diff.
    • Commit, amend, and "Commit & Push".
    • Fetch, then pull by merge, rebase or fast-forward only.
    • Push, publish a new branch, or push with --force-with-lease.
    • Branches (create, switch, delete), history, and stashes.
    • A banner appears during a merge or rebase with conflicts.
  • Domains — subdomain aliases (api.shop.test) and a wildcard (*.shop.test).
  • Terminal and Settings tabs.
• Terminal (xterm.js)
  • Tabs.
  • Suggestions for paths, commands, npm and Composer scripts, artisan commands and Git branches; Tab or Enter accepts one.
  • The project's own PHP, Node and Composer are first on PATH.
  • Opens on the Terminal page, in a separate window, or on the project page, as chosen in Settings.
• Databases
  • Tabs for MySQL, PostgreSQL and MongoDB. Each engine installs, starts and stops on its own, and a stopped engine stays stopped.
  • Create and drop databases.
  • Backups: back up now, restore, delete, and choose a backup folder.
  • Uninstalling an engine offers a backup first.
  • Admin tools (phpMyAdmin, pgAdmin 4, mongo-express) sit in the top bar and can be uninstalled.
• PHP
  • Extension toggles: all extensions on Windows; OPcache and APCu on macOS, where builds are static.
  • A php.ini editor for the common settings (memory and upload limits, execution time, errors, timezone, OPcache timestamps).
  • On macOS, the LDAP extension is built automatically when a version is installed. This needs the Command Line Tools.
  • Uninstall a version, and install or update Composer.
• Node — choose the npm version for each Node install, uninstall versions, and view diagnostics.
• Ports & SSL
  • Every port Mullion uses and which process holds it.
  • Move database or dev-server ports, with conflict detection.
  • Trust or export the local CA, and turn HTTPS on or off for every site.
  • Wildcard DNS: a built-in DNS server plus /etc/resolver (macOS) or an NRPT rule (Windows).
• Settings — change the TLD, choose where terminals open, set the backup folder, and run diagnostics (doctor).
• New commands: postgres (pg), mongo, pgadmin, mongo-express, phpmyadmin uninstall, backups, alias, dns, ports, port set, port dev, ssl (trust, export, all), worker, run, pkg, php ini, app.

Changed

• Rebranded panel, app icon, Windows .exe icon and favicon.
• Panel preferences (theme, open project tabs, terminal placement, favorite commands, …) are now stored in config.json under ui instead of the browser's storage.
• The sidebar has new pages: Sites (backend and frontend together), Terminal, and Ports & SSL. The old separate Backend and Frontend pages are gone.
• Managed dev servers and a project's commands now trust Mullion's local CA (NODE_EXTRA_CA_CERTS), so server-side calls to other https://*.test sites work.

Fixed

• New domains added from the panel or the wake agent work right away. Background processes were mistaken for an interactive terminal, so the hosts-file update asked for a sudo password that nobody could type. Mullion now detects a real terminal and otherwise shows the system password dialog.
• Stopped the bursts of 502 errors on Vite pages that load many modules at once (max_conns_per_host on the dev-server proxy).
• Config files are written atomically, so a crash in the middle of a write can no longer corrupt config.json or sites.json.
• Stopping a database engine now sticks: Mullion no longer restarts an engine you stopped on purpose.

Notes for upgrading

• Run mullion setup once after upgrading (it's idempotent). On macOS this installs Mullion.app into /Applications.
• Panel preferences start fresh once. They now live in ~/.mullion/config.json (C:\Mullion\config.json on Windows) instead of the browser's storage. The reason: the panel runs on a random 127.0.0.1 port each launch, so anything the browser saved for one launch was lost on the next.
• Wildcard aliases (*.site.test) need mullion dns on once, which asks for administrator rights. Named aliases (api.site.test) keep using the hosts file.
• Existing sites, PHP/Node versions and MySQL data carry over unchanged.

1.x (August 2026)

• 1.7.0 – 1.7.3
  • Wake-on-demand dev servers: opening a stopped frontend site starts it, with a live "Starting…" page.
  • Idle sleep: after 2 minutes with no tab open, or 10 minutes with an idle tab.
  • Startup failures show their real cause on the page.
  • Reliability fixes for the wake agent and Caddy reloads.
• 1.6.0
  • Redesigned panel: sidebar pages (Overview, Backend, Frontend, PHP, Node, Database) and light/dark themes.
  • Rename sites from the panel and with mullion rename.
• 1.5.0 – 1.5.10
  • Start, stop and restart each dev server.
  • Switch a domain between dev and build (mullion serve), with an automatic build when there is none yet.
  • Added mullion doctor and mullion node which.
  • Replacing another MySQL always offers a backup first.
  • Vite host fixes, and many self-healing fixes.
• 1.4.0 – 1.4.1 — Node.js support:
  • Version manager, per-project versions through .nvmrc-aware shims.
  • Managed dev servers behind .test domains.
  • --build links that serve a production build.
• 1.3.0
  • MySQL root password and database management.
  • Automatic fixes for PHP versions shadowing Mullion's on PATH.
• 1.2.0 – 1.2.4
  • macOS support: static-php builds, php-fpm, launchd, /etc/hosts.
  • Homebrew tap, Scoop bucket, and an install script.
• 1.1.0
  • Windows tray icon, PECL extensions, and in-place self-update.
  • Fixes for large backups.
• 1.0.0
  • First release: a PHP version manager and local dev server for Windows.
  • Caddy, .test domains, HTTPS, MySQL and phpMyAdmin.

Also on GitHub, with downloads on the Releases page.