v0.8.18

New in 0.8.18

• Nine tabs instead of eleven. Trends is now a page on Overview, and Rules a page on Settings.
• Checkup holds still while you read it. It refreshes when you run it again or come back after a minute, not mid-sentence.
• Stop an exposed service. When a database or server is open to the network, Checkup offers a Stop button for it.
• Plainer wording for unusual activity: "Mail is working 6 times harder than usual".
• Zero trust networks (Zscaler, Netskope, Cloudflare WARP). When pings are blocked, the internet is measured with TCP instead of showing as down, and the firewall is no longer flagged as off.
• Fewer, grouped notifications. Hotspot data use is one alert that updates in place and only makes a sound on joining and each GB. Alerts stack by kind (hotspot, alarms, heat, staying awake, reports, updates) and by app.

Install / update

• Already installed: click Install and relaunch when the update notice appears, or run ~/install-system-sentinel.sh.
• New install: download the zip, unzip, move System Sentinel.app to Applications, then run:

xattr -dr com.apple.quarantine "/Applications/System Sentinel.app"

The build isn't notarised by Apple; the source is public.