3 calls to update_get_projects()

update_calculate_project_data in modules/update/update.compare.inc
Calculates the current update status of all projects on the site.
update_get_available in modules/update/update.module
Tries to get update information from cache and refreshes it when necessary.
_update_refresh in modules/update/update.fetch.inc
Clears out all the cached available update data and initiates re-fetching.

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