Welp, that was anticlimactic! Thanks, God, for a smooth update to WordPress 4.7.3! (And thanks to the WordPress team for maintaining backwards compatibility). And hey, look – the Library has close to 1,000 posts!
Expect major site updates in the months to come, as WordPress’s Themes and Pages now enable me to do things I could only formerly do with static pages and hand-coded pages, and it will all be backed up easier thanks to WordPress’s Jetpack plugin.
The things you learn helping other people with their web sites ….