Finally. Our personal blogs are now updated (from WordPress 4.9.x to 6.2.x), Classic Editor and Classic Widgets plugins are installed, https certificates added (transition from http → to https), MySQL tables updated (thousands of http entries replaced with https), a few minor issues fixed.
Next — find/tweak better themes, start blogging more often. And follow more RSS feeds. :)
Oh and also — fix one critical PHP error in a plugin of critical importance! Update (one day later): The critical error was fixed! :)