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libmp4tag Change Log

2.0.3 2026-2-8

• Bug Fixes:
  • Fix compilation of user libmp4tag.h file.
  • Fix build for Cygwin.

2.0.2 2026-1-20

• Bug Fixes:
  • Fix build with recent Msys2.
  • Fix build with [[nodiscard]].

2.0.1 2025-10-27

• Bug Fixes:
  • Update incorrect instructions in README.

2.0.1 2025-10-6

• Bug Fixes:
  • Windows: Fix ftell/fseek for large files.
• Changes
  • Added helper routines: mp4tag_ftell, mp4tag_fseek
  • mp4tagcli: Add --preserve option
• Internal
  • Code Cleanup (modernization)

2.0.0.1 2025-6-30

Maintenance Release

• Bug Fixes:
  • Fix compiler warnings.
  • Improve cmake configuration.

2.0.0 2024-12-19

• Bug Fixes:
  • Fix duration when hint tracks are present.
  • Fix handling of arrays of strings.
  • Fix issue with free block handling.
  • Fix processing track name box when track data is shortened.
• Changes:
  • mp4tagpub_t: 'coveridx' has been renamed to 'dataidx'.
• New Features:
  • Open stream interface re-written to use callbacks.
  • Support arrays of strings.

1.3.0 2024-6-9

• New Features:
  • Stream processing (beta)

1.2.13 2024-2-4

• Bug Fixes:
  • Windows: Fix installation.

1.2.12 2023-12-25

• Bug Fixes:
  • Better 3gp and 3g2 file recognition.

1.2.11 2023-11-29

• Bug Fixes:
  • mp4tagcli: Fix --dump filename
• Changes:
  • Make cover image type (jpg, png) available to caller.
  • mp4tagcli: also display type of cover image.
• New Features:
  • Added manual page for mp4tagcli.
  • Added manual page for libmp4tag.

1.2.10 beta 2023-11-28

• Bug Fixes:
  • Windows: mp4tagcli fixed to properly handle windows command line arguments.
  • Fix test scripts to work on windows.
  • Windows: mp4tag_towide and mp4tag_fromwide changed to public interfaces.
  • Fix extension check for cover images to handle upper case.

1.2.9 beta 2023-10-31

• Bug Fixes:
  • Fix installation of mp4tagcli executable.
  • Re-work build & installation to match cmake methods.

1.2.8 beta 2023-10-30

• Bug Fixes:
  • Makefile cleanup; fix static library name on windows.

1.2.7 beta 2023-9-20

• Bug Fixes:
  • Fix pkg-config file to install in correct library location.

1.2.6 beta 2023-9-7

• Bug Fixes:
  • Fix writing 4-byte numeric values (typo).
  • Fix parse of cover image name.
  • Fix cover image processing.

1.2.5 beta 2023-9-6

• Bug Fixes:
  • Fix parsing issues.
  • Fix update of parent container lengths.
  • Fix re-writing bugs.

1.2.4 beta 2023-9-4

• Bug Fixes:
  • Windows: Allow for linking with UCRT.
  • Fix tag box length on re-write.
  • Fix stco/co64 update.
  • Fix parent box update.
• Changes:
  • Update mp4tag_read_file api.

1.2.3 beta 2023-9-2

• Bug Fixes:
  • Fix windows installation.
  • Install pkgconfig file.

1.2.2 beta 2023-8-31

• Bug Fixes:
  • Prevent possible crashes.
  • Fix various internal bugs.
  • Fix windows build.
  • Fix windows file handling on re-write.

1.2.1 beta 2023-8-29

• Bug Fixes:
  • Fix disc/track output when total is zero.
  • Fix disc/track parsing issues.
  • Fix memory leak.
  • Fix bug setting new disk/track tag.
  • Fix mp4tag_clean_tags.
• Changes:
  • Create and install pkgconfig file.

1.2.0 beta 2023-8-28

• Bug Fixes:
  • Fix crash when taglist is present but empty.
  • Recognize more files as mp4.
• New Features:
  • New mp4tag_set_binary_tag() routine.
  • Added wiki documentation.

1.1.1 beta 2023-8-27

• Bug Fixes:
  • Build now works on FreeBSD.
• New Features:
  • mp4tag_preserve_tags, mp4tag_restore_tags are now implemented.
  • mp4tagcli: Added --copyfrom/--copyto to test preserve/restore.

1.1.0 beta 2023-8-24

• Notes:
  • Initial Release