Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
to check any new update. first, you must download jomsocial latest version from jomsocial.com > my account.
unzip the package that containing ijoomla installer + latest jomsocial version.
after ijoomla installer installed, in next update you can do it from there.