• Add support for sparse files inside the TAR.
• Automatically detect if the TAR file has grown since the last index creation.
• Add support for truncated TAR files, e.g., during downloading.
• Add support for concatenated TAR files.
• Add support for hardlinks in the TAR file.
• Add support for union mounting.
• Add support for accessing older versions of a file if the TAR contains multiple versions.
• Detect changes in TAR files and recreate the index if so.
• Remove support for old non-SQLite index backends.