ODFileSystem v0.7.0

Highlights

ODFileSystem v0.7.0 significantly improves large-disc support, audio CD
handling, Workbench integration, and AmigaOS 4 compatibility.

• Correctly reads large, fragmented, and sparse UDF files.
• Supports reads beyond 4 GiB on devices without TD64.
• Exposes CD-Text titles and adds cue/WAV audio-image support.
• Improves mounting, media changes, and stale-volume handling.
• Adds resident filesystem metadata and restores the 32 KiB ROM profile.

Filesystem and large-media support

• Walk the complete UDF allocation-descriptor chain, fixing corrupted reads
  from files larger than approximately 1 GiB, fragmented files, sparse files,
  and multi-extent directories.
• Read beyond 4 GiB using TD64, NSD, or SCSI READ(10), automatically
  selecting a method supported by the device.
• Report usable saturated sizes for files too large for classic AmigaDOS size
  fields.
• Consolidate ISO 9660 and Joliet handling, substantially reducing duplicated
  code and ROM usage.
• Share and harden UDF directory traversal and Macintosh timestamp conversion.

Audio CD support

• Show CD-Text track titles as comments on virtual WAV and AIFF files
  (#10).
• Use the CD-Text album title as the volume name for pure audio CDs.
• Correct CD-TEXT.txt generation so every decoded string appears on the
  proper track line.
• Support audio cue sheets backed by raw or RIFF/WAVE files, including
  synthesized CD-Text from cue-sheet titles and performers.
• Allow imgls, imgcat, and imginfo to mount, inspect, and extract pure
  audio and mixed-mode images.
• Add a configurable Workbench icon for audio CDs through
  ENV:Sys/def_cdda.info or ENVARC:Sys/def_cdda.info.

AmigaOS handler and Workbench integration

• Raise the minimum handler stack to 16 KiB and update the packaged DOSDriver
  and mountlist examples accordingly.
• Continue startup on the supplied stack if the private stack allocation
  fails, avoiding a hung startup packet.
• Add ForceLoad = 1 to the packaged DOSDriver and examples so the disk
  filesystem is not silently replaced by an older ROM implementation
  (#4).
• Reference-count shared library bases across handler instances, fixing
  failures after duplicate mounts.
• Validate startup messages and produce useful diagnostics for malformed
  mountlists.
• Keep handlers resident when drives are empty and mount media when it is
  subsequently inserted (#8).
• Return the correct responses for unknown packets and operations attempted
  without mounted media.
• Report an empty drive as “no disk” instead of “not enough memory”
  (#13).
• Correct multi-component paths inside the virtual CDDA directory
  (#12).
• Present normal write/delete protection bits for files copied from read-only
  media, avoiding unnecessarily protected destination files
  (#14).
• Retain inactive volume nodes while applications still hold locks or file
  handles, allowing Workbench to release .backdrop locks after media removal
  (#15).
• Retry deferred DOS volume publication when the volume-list lock is busy,
  ensuring Workbench eventually receives the volume icon.
• Add resident/RomTag support and expose synchronized version information in
  the handler banner, resident metadata, and FileSystem.resource creator.

AmigaOS 4

• Resolve Rock Ridge and UDF symbolic links through the native filesystem
  vector interface.
• Run device I/O through caller-owned requests when invoked from vector
  callbacks, preventing hangs during remounts and audio reads.
• Support longer filenames through a 256-byte OS4 node-name buffer.
• Honor the DismountDevice() keep-device flag during shutdown.
• Use GetFileSize() instead of the obsolete Seek() API when loading the
  audio CD icon.

Build, size, and tests

• Enable LTO for ROM builds and restore the enforced 32 KiB ROM size limit.
• Remove unused formatting, logging, and CDDA code from feature-reduced ROM
  builds.
• Derive resident version fields from the release tag.
• Add a conventional distclean target.
• Consolidate duplicated cache, CDDA, lock, SCSI, UDF, and mount-finalization
  code.
• Expand regression coverage for UDF extents and directory traversal, cache
  failures and read-ahead, CD-Text, audio images, virtual audio files, and
  plain ISO 9660 versus Joliet filename behavior.

Full Changelog: v0.6.0...v0.7.0