0.51.0

Multi-Storage Client (MSC)

New Features

• Add a Python API compatibility guardrail.

Bug Fixes

• Make delete_many() idempotent when missing keys are included.
• Retry transient GCS delete_many() failures.
• Reject unsafe cache delete paths.
• Reject unknown top-level config keys correctly.
• Normalize duplicate slashes in MSC URLs.
• Preserve symlink chains.
• Refresh sync progress totals immediately.
• Upgrade vulnerable dependencies from security scans.

Multi-Storage File System (MSFS)

New Features

• Support multi-bucket and multi-backend CSI volumes.
• Add a no-credentials anonymous CSI connection mode.
• Reload AIStore authn_token_file credentials after token rotation.
• Add per-workload IRSA support with CSIDriver tokenRequests and requiresRepublish.
• Add a per-inode disk cache backend.
• Mark MSFS packages with pre-release version metadata.

Bug Fixes

• Use optimistic-lock copy operations to remove warm-read serialization.
• Align manifest directory listings.