Tarski’s update notifier periodically checks that your version of Tarski is up to date, and lets you know when there’s a new version available to download.
Enable caching
The update notifier attempts to cache version data for an hour, so the WordPress admin panel doesn’t always have to wait for our server to respond. For this to work, the cache directory must be writable. Here’s the cache location:
/wp-content/tarski/library/cache/
To make the cache writeable, set permissions for the cache directory to 777. The WordPress Codex page on changing file permissions should help you out with this.
Disable the notifier
To disable the update notifier, just go to the Tarski Options page and select the appropriate option.
Requirements
The update notifier requires either the presence of the libcurl library, or that allow_url_fopen be enabled. Most servers have one or the other available; for those that don’t have either, you can either enable them (if you know what you’re doing), ask your server admin to enable them (if you don’t), or just follow Tarski’s updates the old-fashioned way by following the Tarski version feed or the Tarski website feed.