Dear Nancy and Neil,
many thanks for your prompt and helpful responses. Both modules you mention indeed seem interesting and useful ! To be more specific about my concern: I'd like to be able to get a list of just those modules that need to be updated. I know this information is available on the status page, but the way it is presented there is not convenient for me (I'm blind). Indeed, there all the modules are listed whether they are up-to-date or not. So when I receive a notification that new versions are available for some modules, I have to go through all the list to find out that just one or two modules need to be updated. Does one of the modules you mention, or another one, allow one to do such a thing ?
Thanks so much in advance for any help ! Sherab.