I use ManageWP to manage updates on my non-Bedrock sites. This is quite handy. I login every few days, see which updates are available and I can then make the necessary updates.
While I love the way I can manage versions and update with Composer I miss a way to keep track of updates. It seems that I need to keep track of every site, every core and plugin version, then manually check regularly for an update on each plugin, compare it again with each version on each site, decide on updating or not... Sounds very tedious to me.
How do you keep track of your updates? Maybe subscribe to a version feed? Maybe there are some tools for this?