Preferences: Update check
Let's you set when (or if) TimeCache performs an automatic check for newer versions.

On launch: Check each time you launch TimeCache.

Every 24 hours: Check once a day.

Every week: Check one a week.

Never: TimeCache does not check for updates automatically.

If you choose one of the options for automatic checks, your computer must be connected to the Internet at the time of the periodic update check for it to succeed. If TimeCache finds a newer version, it presents a window letting you know there is a newer version and asking if you would like to download it. If you click Install Update, TimeCache downloads the file automatically. When the download is complete, it shows a Relaunch dialog. If you click its Ready to Install button, the new version is automatically installed.

You can also check for updates manually.