Improved Cleanroom Relauncher

Changed

• Default Java version to 25 due to newer versions of Cleanroom requiring it
• Automatically upgrade configured Java version to 25 when Cleanroom version is 0.5 or newer

Added

• disableCacheTTL option in config to bypass release network checks.
• cacheDir option in config to specify a custom cache directory.

Fixed

• HTTP 403 API rate limit crashes when checking releases. Added a User-Agent header to requests and gracefully fallback to cached releases data.

Changed

• Backend config parser to resolve file path and locale issues on some systems.

Upstream Changes

Fixed

• Stop scanning the entirety of /opt on Linux (updated JavaUtils to 1.1.5)

Fixed

• NoSuchElementException Crash

Hotfix 2: Electric Boogaloo

Fixed

• MacOS Architecture Detection Again

(Screw Rosetta man, that thing is just too aggressive, also due to Mojang's laziness)

Hotfix

Added

• Architecture Validation (If your configured architecture and system architecture differ, it will auto download the correct java architecture. This was mainly added to easily fix the previous issue)

Fixed

• MacOS Architecture Detection

(Delete config to download the correct version, or set javaPath setting to: "Null")

Upstream Changes

Added

• Respect the launcher's original heap space setting arguments (-Xms, -Xmx) if none is specified in the configuration

Fixed

• Compatibility with newer MMC pack formats (starting from Cleanroom 0.3.19)
• Encode and decode configuration with UTF-8
• Some Linux installs not being detected properly (updated JavaUtils to 1.1.3)

Changed

• Thanks to @ZZZank, using MethodHandles to call the wrapper class's main method instead of standard reflection, allows for a cleaner stacktrace

TLDR:

Faster more reliable downloads, auto-update, and auto-cleanup.

Added

• Multi-chunk parallel Java downloads
• Multi-file parallel library downloads
• Better download speed and ETA tracking for all downloads
• Better download resuming and retrying
• Java download verification
• Auto-Update
• Automatic cleanup of unused temp setup files
• Taskbar icon during download

Fixed

• Library progress not showing

Changed

• Default Java version from 21 to 24

Added:

• GraalVM support (Switch in config)
• Partial Download Resuming
• Automatic Download Retry on Fail
• Download Speed and ETA display
• Dark Mode (Togglable in config)

Run the game once to generate the updated config