Sparkle 1.5b5, featuring Breaking All Your Stuff™ technologies!

Alright, folks, it’s that time again. Sparkle 1.5b5’s out! Tons of bugs fixed, and tons of stuff refactored. I made much of the API private—that’ll give me more flexibility to change the architecture out from under you in the future.

Please read the release notes, because unless you’re using a .app and haven’t called anything in the Sparkle framework, I’ve probably broken things for you.

Important Changes!
- Made every Sparkle class private except for SUUpdater, SUAppcast, SUAppcastItem, and the SUVersionComparisonProtocol.
- There is now a single SUUpdater singleton for every host bundle; instead of -[SUUpdater setHostBundle], you can use +[SUUpdater updaterForBundle].
- Redefined the (entire) delegate protocol accordingly.
- Renamed -[SUUpdater updatePreferencesChanged] to -[SUUpdater resetUpdateCycle]. This provides better semantics for non-apps, which need to start the update cycle manually.
- -[SUUpdater checkForUpdatesWithDriver] is private. If you were using SUProbingUpdateDriver, you can now use -[SUUpdater checkForUpdateInformation] for a similar effect.
- All the user defaults keys are now private; instead, SUUpdater is KVC-compliant for automaticallyChecksForUpdates, updateCheckInterval, and feedURL.
Reduced the size of the English-only framework by 25%.
System profiling information is now only submitted to the server once per week; this will help normalize your statistics across users with different interval preferences.
The feedParametersForUpdater: delegate method now requires displayKey and displayValue keys (just human readable versions of key and value) so that it can inform the user what’s being sent.
Added a delegate method called pathToRelaunchForUpdater: which can be used for plugins to provide the path which should be used when relaunching the client after installing an update.
Added support for xml:lang to pick localized nodes in appcasts (for release notes, etc).
Fixed a bug which would cause the “checking for updates” window to not disappear in certain extraordinary error conditions.
Fixed a DSA signature checking bug for .tar.gz archives.
Sparkle now refuses to update on any read-only volume, not just dmgs.
Sparkle will clean up the host app’s name and version before sending it as the user agent string; some non-ASCII characters were causing problems.
Added an Italian localization courtesy Michele Longhi.
Added a Swedish localization courtesy Daniel Bergman.
Fixes to the French localization courtesy Ronald Leroux and Yann Ricqueberg.
Fixes to the German localization courtesy Sven-S. Porst.
Fixes to the Russian localization courtesy Alexander Bykov and Anton Sotkov.
Fixed a number of issues related to archive format detection: I reverted back to extensions from UTIs.
Focus behavior fixes for LSUIElement apps.
The status window progress bar now animates even when indeterminate.
Major refactorings to improve functionality for non-app bundles.