AltServer: download ældre versioner

- Enables support for Remote AltServers (see AltStore FAQ for more info)
- Adds support for Windows on ARM

- Fixed “invalid server response” error when signing-in with Apple ID.

- Fixed apps crashing on launch on iOS 26.4

This update fixes error -22410 when installing and refreshing apps.

If you're still having issues after updating, please try these troubleshooting tips:
- Log in to iTunes
- Log out then back in to iTunes
- Leave iTunes running while AltServer is running
- Reinstall AltStore with AltServer

- Fixed apps becoming unverified on iOS 18

- Supports Apple IDs with Advanced Data Protection (ADP) enabled

New
- Completely revamped error handling to include as much information as possible, which should make debugging certain issues much easier
- Revised error messages to be more descriptive and provide more suggestions
- Updated error messages to match AltServer macOS
- “Help” button on error alerts to view detailed error information
- Search for error code directly in AltStore FAQ
- Checks iOS compatibility before installing AltStore and downloads latest compatible version
Fixed
- Fixed AltServer notification icon not appearing in Windows 11 22H2 taskbar
- Fixed error encoding CodableError Int/UInt user info values

This update fixes the following issues:
- Using Apple IDs that contain capital letters
- Using Apple IDs that have 2FA enabled without any trusted devices
- Incorrect “Developer Disk incompatible with [iOS Version]” error when enabling AltJIT
- Indefinite high CPU usage after enabling AltJIT
- Indefinite high CPU usage after updating AltStore