Green Launcher 0.17.7

Green Launcher 0.17.7 introduces verified differential portable updates, storage safeguards and fresher catalog data.

Updates and storage

• Portable updates can reuse matching blocks from the existing launcher and download only changed blocks. The reconstructed EXE is verified against the release SHA-256 before installation; unsupported or invalid differential downloads fall back to a fully verified download.
• Updating from 0.17.6 or earlier to 0.17.7 still requires one full download. Differential downloads become available from the 0.17.7 client for subsequent compatible releases. Download savings depend on what changes between builds.
• Successful launches clean up completed, unused launcher runtimes and obsolete update downloads. The current runtime, running launcher instances, pending newer updates, profiles, accounts and Minecraft data remain protected.
• Downloads check available storage before fetching content, including temporary update files and runtime extraction. Shared reservations account for concurrent downloads; insufficient space produces a notification and a log entry.

Interface and catalog fixes

• Centered the last-played and size headings and values in the Worlds table, and aligned the four sidebar action buttons around a shared icon/text layout.
• Modrinth favorites, catalog results and project details now share refreshed project metadata. Metadata is cached for about two minutes, refreshes in the background and remains available when offline.

Validation

Verified builds and translations, storage reservations, download retries/resume, differential reconstruction and full-download fallback, cancellation, runtime cleanup, favorites refresh, Worlds alignment, packaged checksums and the native update handoff. A small-change comparison between two real portable builds reused most of the previous package; this is a test result, not a fixed download-size guarantee.