1.25.0

• Raise minimum system version to 10.9 (Kornel)
• Allow an appcast to prevent the new version from being installed automatically (#1688) (pierswalter)
• UI fixes
  • Show check for updates button only when automatic updates are enabled (Lorena Rangel)
  • Don't initialize the webview if we don't show release notes (Tobias Fonfara)
  • Keep skip button available if there is a minimum autoupdate version (Zorg)
  • Fix automatic updates checkbox state when not showing release notes (Zorg)
  • Fix edge cases with hiding alert buttons and using "Install Later" (Zorg)
  • Re-add setting WebUIDelegate fix for legacy web view (Zorg)
  • Adopt WKWebView for 1.x (Zorg)
  • Add auto layout constraints to SUAutomaticUpdateAlert window (Zorg)
  • Made buttons wide enough to display the full text. Made window wide enough to display the widened buttons (el, fi, ru, uk) (Piers Uso Walter)
  • Remove max size from update alert. (George Nachman)
• Integrate generate_keys export/import options changes from #1730 (Zorg)
• Add —release-notes-url-prefix support to localized release notes (Adam Tharani)
• Translations
  • Enable base internalization for alert xibs (Zorg)
  • Capitalizes french translation of "Vous utilisez actuellement..." ("You are currently running...") (Micah Moore)
  • Fix and cleanup Hebrew, Catalan, Finnish localizations (Zorg)
  • Remove non-english localizations from TestApplication (Zorg)
• Fix catch-22 Swift Package Manager binary target (Jonas Zaugg)
• Add explicit dependencies to fix Xcode linking errors (Kornel)
• Add phased rollouts feature to automatic update driver too (Zorg)
• Remove hiding skip button and retitling later button (Zorg)
• Deprecate installUpdatesIfAvailable (Zorg)

macOS 10.9 or later required

If you're not generating appcasts automatically, remember to add <sparkle:minimumSystemVersion>10.9</sparkle:minimumSystemVersion> tag to <item>s in your appcast. Sparkle will crash on 10.8 or older.