Bunny’s Technorati Tags and WordPress 2.0To make Bunny's Technorati Tags fully compatible with WordPress 2.0 you need to change two lines in the add_tags_textinput() function.
Flash 10 and WordPress File Upload ProblemsWordPress use(d) SWFUploader for uploading images, but Flash 10 broke it. Fixed in WP 2.7. Obsolete now that Flash is discontinued and HTML+JS can handle nicer uploads.
Flock and self-hosted WordPressIf you can't post to your self/third-party-hosted WordPress blog through a program other than the website, and you use ModSecurity - check those settings.
Moving WordPress: Finding and Updating Old PathsHow to find every last reference to the old path in the entire site and config because WordPress stores absolute paths all over the place and some configurations will break if you don't update it.
PHP5 and WP Cache 2Finding and fixing errors with WordPress' WP Cache plugin and PHP5.
Using WP-CLI with WordPress 4.6 on DreamHostTo use wp-cli with WordPress 4.6, you need to use a newer version than the one installed, and to do that, you need to enable PHAR in PHP.
What’s in Your Social Media Archive?I checked out what you get when you export your content from Twitter, Facebook, Google+, LinkedIn, WordPress, LiveJournal, Tumblr, and Mastodon, with an eye for both private archives and migrating to your own site.
When Tags Vanish: WordPress 2.1A change in plugin hooks in WordPress 2.1 caused older plugins to fire when a post got new comments, causing some weird behavior like losing custom fields.
WordPress + ActivityPub in a SubdirectoryThis rewrite rule lets other Fediverse sites find your blog through the ActivityPub plugin, without breaking Let's Encrypt renewals.
WordPress Broken on PHP 5.2 AgainWordPress 2.1.1 should have fixed the PHP 5.2 problems, but not if you're also using the internal cache.
WordPress Combined SearchesThey're not in the UI, but you can use URL tricks to search for combinations of tags, categories, authors, and so on.
WordPress Plugin: Combined ReadmeYou can use a README.md instead of a readme.txt so the same file works for both the plugin directory and your git repository.