Release Highlights

Aspose.ZIP for .NET 25.5 delivers enhanced support for legacy formats, introduces TAR with LZ4 compression, and improves memory efficiency and metadata preservation in LZ4 archives.

✳️ New Feature

• Uuencoded File Detection:

  • The API now automatically detects uuencoded files by their content signature, enabling smoother processing of this legacy format.

• Tar.LZ4 Combined Archive Creation:

  • New method TarArchive.SaveLZ4Compressed() allows developers to compose and save .tar.lz4 archives in one step.

🔧 Enhancement

• LZ4 Metadata Control:

  • Lz4ArchiveSetting.IncludeContentSize: Optionally include the original file size in the LZ4 header.
  • Lz4ArchiveSetting.IncludeBlockChecksum: Enables inclusion of xxh32 block checksum for improved integrity.

• LZ4 Extraction Optimization:

  • Memory allocation on LZ4 extraction has been significantly reduced, leading to faster and more efficient decompression.

• Uuencoded File Metadata:

  • Unix file mode metadata is now preserved when handling uuencoded files for better cross-platform compatibility.

🛠 Fix

• Unix File Mode Handling:
  • Fixed issue where Unix file mode was not applied correctly if the file wasn’t explicitly supplied during archive composition.

👉 You can view the full list of updates by visiting Aspose.ZIP for .NET 25.5 Release Notes

uuencode detection | tar.lz4 archive creation | lz4 block checksum | unix file mode fix