I've noticed that, we can not update the default themes from the ACP.
for example theme persona's latest version is 10.1.16
but on the ACP it shows Installed 9.1.38 | Latest 9.1.38 also for theme Lavender and Slick.
I managed to install theme persona v10.1.16 but It's broken.
If the socket.io/tools.js module was deleted, then this won't work since the plugin was depending on that. I saw that there's a plugins.js module in the same place now, so i can amend it to user that instead. However I've just pulled the latest and can't get it to connect to redis, starting a separate thread...