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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

[1.0.0-3.2]

Added

  • Lock Contention Resolution: Allow resuming clients to immediately release upload locks held by stalled upload requests via HEAD requests. Supports both single-instance and multi-replica/Kubernetes deployments without breaking backward compatibility of the locking interfaces.
  • File Deduplication by Hash: Implemented optional, space-saving duplicate file detection and linking based on file checksums.
    • Added withUploadDeduplication(boolean) builder method on TusFileUploadService (default: false for backward compatibility).
    • Introduced index system under <storagePath>/checksums/<algorithm>/<checksum_value> for mapping file checksums to their original completed upload IDs.
    • Implemented safe read-only recursion in DiskStorageService for child uploads: read operations (getUploadedBytes, copyUploadTo) recursively resolve to the parent upload, while write/truncate operations (append, removeLastNumberOfBytes) remain strictly bounded to the child ID to avoid accidental parent modifications.
    • Added parent-child expiration coordination: parent upload's expiration timestamp is automatically updated to be greater than or equal to any linked child upload's expiration.
    • Self-cleaning index system: dangling index entries resulting from parent deletion/expiration are automatically detected and removed on the fly.
    • Added new duplicatesUploadId, checksum, and checksumAlgorithm fields to UploadInfo.
  • Backward Compatibility: Explicitly declared serialVersionUID = -8751200491586638308L inside UploadInfo to prevent serialization version mismatches for pre-existing upload data on disk.
  • Deduplication of Parsing Logic: Introduced Utils.ChecksumInfo and Utils.parseUploadChecksumHeader to completely centralize header validation and parsing.