A few bugs I encountered:
1. The installer incorrectly detected my operating system and CPU architecture. I am running Windows XP x64 Edition on (obviously) a 64-bit processor; the installer detected a 32-bit architecture and Windows 2003 (which actually does not exist; the closest thing would be Windows
Server 2003).
2. The installer's license agreement started out scrolled to the very bottom.
3. After installation completed, I fired up the minion and let it scan my addons. The first thing on its list was "AFK Filter by Phanx", a personal addon I have never released anywhere (though there is an old addon released by someone else with the same name). The minion reported "Version 3.9 available!", and when right-clicking on the addon's name and selecting "More info..." I was directed to the download page for
"Loot Filter" by Meter.
4. Several addons (they all seem to be addons that include multiple top-level folders in their download, like AtlasLoot and Bagnon) stuck at "Waiting for <addon name>..." forever.
5. Data Broker plugins whose names begin with "Broker" appear to be incorrectly detected as modules of a single addon, as the updater resolved the first one listed (folder name "Broker_Group", TOC title "Broker [Group]") and stuck the rest of them at "Waiting for Broker [Group]". Same goes for Button Facade skins ("Waiting for ButtonFacade...") and several other addons whose names begin with the same word (DamnAchievements, DamnQuestIcons; Improved Merchant, ImprovedAchievements; all FuBar plugins).
6. Non-basic-ASCII characters are incorrectly displayed. For example, the addon
Endless lists "João Afonso Libório Cardoso (Jaliborc)" as its author in the TOC file, with proper UTF8 encoding; the minion reads "João Afonso Libório Cardoso (Jaliborc)".