LibRaw 0.22.0 Release is just published in our Github repository and this site download section.

Here are changes list relative to version 0.21:

Raw format support

• Panasonic encoding 8
• Sony YCC (Medium/Small compression) pseudo-RAW support:
  • normal processing (3-channel RGB output)
  • or YCbCr output if LIBRAW_RAWSPECIAL_SRAW_NO_RGB bit is set in imgdata.rawparams.specials (one may specify the LIBRAW_RAWSPECIAL_SRAW_NO_INTERPOLATE flag too avoid Cb/Cr interpolation) Note: if YCbCr is selected, Cb/Cr neutral points are adjusted to 8192 (to fit histogram/range area of the Y channel)
  • RAW (pseudo-RAW) data is already white balanced, so imgdata.color.as_shot_wb_applied is set to LIBRAW_ASWB_APPLIED | LIBRAW_ASWB_SONY
• DNG 1.7 (including JPEG-XL compression) support via Adobe DNG SDK 1.7.x integration
• Canon CRN files: embedded RAW extracted
• New implementation for Samsung V3 decoder (NX1, NX500, etc)
• OM System 14-bit high-resolution files.
  Note: the new decoder supports old (12-bit) Olympus/OM-System files too and slightly faster (about 5%), so the old one is removed.
• Nikon NEFX (4/8/16/32 shots in PixelShift mode merged via Nikon software)

Camera support

• Canon EOS R1, EOS R5 Mark II, EOS R5 C, EOS R6 Mark II, EOS R8, EOS R50, EOS R100, EOS Ra
• Fujifilm X-T50, GFX 100S II, GFX100-II, X-T5, X-S20, X-H2
  X-H2S: support of files with wrong metadata (pre 1.03 fw)
• GoPro HERO11, HERO12 (via GoPro SDK)
• Hasselblad CFV-50c, CFV-100c, X2D-100c
• Leica Q3 43, D-Lux8, SL3, Q3, M11 Monochrom
• Nikon (standard compression only): Z6-III, Z f, Z30, Z8
• Olympus/OM System OM-1 Mark II, TG-7, OM-5
• Panasonic GH7, S9, DC-G9 II, DC-ZS200D / ZS220D, DC-TZ200D / TZ202D / TZ220D, DC-S5-II, DC-GH6
• Pentax KF, K III Monochrome
• Sony ZV-E10M2, UMC-R10C, A9-III, ILX-LR1, A7C-II, A7CR, ILCE-6700, ZV-1M2, ZV-E1, ILCE-7RM5 (A7R-V), ILME-FX30
  A1: support for files damaged by exiftool
• Multiple DJI and Skydio drones
• Tested with multiple smartphones with DNG format recorded.
• As planned in LibRaw snapshot 202101 release notes, OLD_VIDEOCAMS support is dropped. These cameras are no longer supported:
  • old RED Cine cameras
  • Canon C500
  • ARRI video/digital cinema cameras

Total supported camera count: 1284 (if compiled with all features)

Preview format support

• JPEG-XL previews (DNG 1.7) support:
  • new bit for imgdata.rawparams.options: LIBRAW_RAWOPTIONS_ALLOW_JPEGXL_PREVIEWS (not set by default)
  • if the bit is set, LibRaw will perceive such previews in the same way as JPEG ones (largest preview is selected by default, etc).
  • tformat field for such preview is set to LIBRAW_THUMBNAIL_JPEGXL
  • image metadata (width/height/channels count) is not parsed for JPEG-XL previews
• H265 (Canon) and JPEG-XL thumbnail support for dcraw_make_mem_thumb
  Note: libraw_processed_image_t.type is set to LIBRAW_IMAGE_H265 or LIBRAW_IMAGE_JPEGXL respectively
• Jpeg XL preview file writer
• Jpeg XL preview support in simple_dcraw -E/-e

API/ABI changes

• New rawoptions/processing flag for DNG processing if compiled with Adobe DNG SDK:
  LIBRAW_RAWOPTIONS_DNG_STAGE23_IFPRESENT_JPGJXL
  Similar to
  LIBRAW_RAWOPTIONS_DNG_STAGE2_IFPRESENT,LIBRAW_RAWOPTIONS_DNG_STAGE3_IFPRESENT flags but applied to JPEG/JPEG-XL compressed images only: If OpcodeList2/OpcodeList3 tags are present in the input DNG file, these tags will be processed via Adobe DNG SDK, producing corrected (de-bayered) image.
• DNG OpcodeList1/2/3: opcode list(s) are read (as is) into imgdata.color.dng_levels.rawopcodes[3]
• Exif callback is called from CR3 parser before calling parse_makernotes() parameters are the same as usual, except tag parameter value.
  tag values:
  (0x70000 | 0x927c) - if called from CMT3 tag
  (__type << 20) | 0x80000 | 0x927c - if called from CTMD record with type __type
• Exif callback is called for Sony SR2 tag with tag parameter set to 0x60000 | tagID
• Makernotes callback implemented for TIFF-like (IFD structure makernotes)
  Callback is very similar to exif_callback.
  To set callback use LibRaw::set_makernotes_handler(exif_parser_callback cb, void *data)
  Callback is called (if set) with tag value set to (uptag << 16)|makernotes_tag
  where uptag is
  EXIF tag: if called from EXIF makernotes parser
  0: if called from CR3 metadata parser
  tag-ID if parse_makernotes() is called from some specific tag context (see parse_makernotes calls in source
  code).
• New metadata field makernotes.pentax.DynamicRangeExpansion[4]
  if DynamicRangeExpansion[1] is non-zero, DynamicRangeExpansion[0] should be added to BaselineExposure
• New API call (static) int LibRaw::simplify_make_model(unsigned * mkindex, char *mkbuf, unsigned mkbuf_size, char *modelbuf, unsigned modelbuf_size):
  This call can be used to simplify/standardize vendor name/model received from external source (e.g. EXIF block in JPEG file).
  mkindex: pointer to received maker index (LibRaw_CAMERAMAKER_...)
  mkbuf, mkbuf_size: buffer with make string, buffer size
  modelbuf, modelbuf_size: buffer with model string.
  simplify_make_model(..) simplifies/re-writes vendor name/model in place, in provided buffers. return values:
  0 - mkindex is set (if non-null pointer provided), data simplified;
  1 - mkindex is not set, while some data processing is done;
  -1 - incorrect parameters;
  
• All file offsets are 64-bit now; Note: data callback signature has changed
• New LibRaw_abstract_datastream (and derived classes) methods:
  bool is_buffered() - returns current buffering mode (if implemented);
  void buffering_on() - turns buffering on.
  These methods complement the (existing) buffering_off() method.
• New bits in imgdata.process_warnings:
  LIBRAW_WARN_DNG_NOT_PROCESSED - RAW file was passed to DNG SDK, but not processed.
  LIBRAW_WARN_DNG_NOT_PARSED - DNG parse error or non-valid DNG at valid_for_dngsdk() stage
• New compile-time define: LIBRAW_MAX_CR3_RAW_FILE_SIZE
  Default: value of LIBRAW_MAX_NONDNG_RAW_FILE_SIZE
  CR3 file size is limited by 4GB (max MP4 container size), so it may be needed to set the limit above non-DNG 2GB file size limit.
• New imgdata.params.use_p1_correction parameter
  If set to non-zero (default): PhaseOne compressed files will be corrected (linearization; defect mapping) based on metadata contained in file.
• New possible bit in imgdata.process_warnings: LIBRAW_WARN_VENDOR_CROP_SUGGESTED
  If set: unknown/untested RAW image frame size passed to LibRaw, cropping may be incorrect.
  It is suggested to use LibRaw::adjust_to_raw_inset_crop(1) for vendor specified crop.
• LibRaw::adjust_to_raw_inset_crop exposed via C-API call:
  libraw_adjust_to_raw_inset_crop(libraw_data_t *lr, unsigned mask, float maxcrop);
  Note: default maxcrop value for C++ API is 0.55f
• Added imgdata.makernotes.sony.AspectRatio field
  - if parsed: contains aspect ratio (width to height)
  - if not parsed: initialized to -999.f
• Canon AutoRotate mode detection for several cameras.
  If LIBRAW_RAWOPTIONS_CANON_CHECK_CAMERA_AUTO_ROTATION_MODE bit is set in imgdata.rawparams: for shots with AutoRotate is Off TIFF::Orientation tag wil be used for imgdata.sizes.flip (and Makernotes rotation tag for other AutoRotate modes).
  Note: AutoRotate is detected for limited set of Canon cameras, namely: EOS 6D, 5D Mark IV, 5DS, 5DS R
  To extend this list: we need specially shot samples to detect AutoRotate field location in metadata. Contact us for details if you need to add your camera to list and have such camera on hands
• Most small buffer allocations: malloc changed to calloc to prevent uninitialized heap data leaks
• Large buffer allocation (RAW backing store, thumbnails store):
  If LIBRAW_CALLOC_RAWSTORE is defined on build: large buffers will be allocated via calloc

Minor Improvements

• Fixed issue 712: mistype in MIN/MAX that loosens camera WB preset checks
• Updated libraw_types.h to fix calling C++ files in external C -- main includes cannot be in extern C for the library to correctly compile under Swift Modules. This small change lets the compiler finish when compiling the library inside a module.
• Read known parts of the X3F 4.X (Quattro) header
• Rollei loader: more realistic limits
• Additional metadata checks in PhaseOne files processing
• Minor fixes to improve stability and special crafted files handling
• Multiple minor fixes to better handling of specially crafted files
• Fixed regression in Fujufilm S6000/S6500 support
• Improved damaged/incorrect files handling
• Support for 4-color lossy-compressed DNG files
• Improved damaged/incorrect/modified CR3 files handling
• Colordata updated for several Fujifilm cameras
• Improved byte order detection for PowerPC
• Minor fix: NOMINMAX defined before #include winsock2.h in LibRaw public header to not provide min/max macros to the code that includes libraw.h
• RawSpeed1/3: do not pass files larger then 2GB
• DNG 1.7 JpegXL DNG/GoPro DNG: do not refuse files at open_file() if LibRaw is not built with DNG SDK/GoPro SDK
  Note: LibRaw::get_decoder_info() will return decoder flag bit set to LIBRAW_DECODER_UNSUPPORTED_FORMAT if LibRaw is not built with corresponding SDK.
• All implicit type conversion *excluding INT64<=>int/uint* conversions are made explicit to remove C++ compiler type conversion warnings.
• Sony DSC-HX95: improved metadata parsing
• Better support for cropped images from latest Fujifilm cameras (X-H2, X-H2S, X-T5)
• New patch for RawSpeed3: 05.no-phase-one-correction.patch
  this patch disables RawSpeed's PhaseOne flat field correction (not needed because LibRaw uses own P1-metadata based correction)
• RawSpeed3/PhaseOne compressed files: scale unpacked data to match camer black level data.
• Better handling of DNG RAW Previews with Stage2 opcodes
• Nikon Z8/HLG mode: do not add 10 bit/unknown format thumbnails to the thumb_list
• Canon CR2 16-bit bitmap previes: do not convert from Kodak colorspace
• New compile-defined limit LIBRAW_MAX_PROFILE_SIZE_MB: limits allocation/read size for embedded color profile (default: 256Mb)
• Embedded color profile allocation/read size: limited by input file size.
• Check against corrupted LJPEG header in Canon sRAW decoder
• Better support for Sony metadata
• Better handling of memory allocation errors in unpack_thumb()
• Support for 8bit/Monochrome DNG Previews
• Placeholder for DNG/YCC preview decoding: such previews are recorded by Samsung S21 Ultra smartfone, while all present samples contains broken data; Right now 'no preview' returned for such files.
• Support for BW bitmap previews in LibRaw::dcraw_thumb_writer
• Phase One: explicitly switch to monochrome mode if firmware string contains 'Achromatic' word
• tiff parser: check for IFD offset before parsing it
• LibRaw::thumbOK(): return 0 for YCbCr thumbnails (because unpack_thumb() will always return error: no correct thumbnails with this format found in the image samples yet)
• Improved Sigma X3F files model recognition

Bug/problem fixes

• Fix for PanasonicV8 decoder compile with OpenMP
• Fix for incorrect 32-bit shift in Pana8 decoder generated by gcc11+
• DNG SDK Integration: clear imdata.color.linear_max[] if Stage3 opcodes are applied.
• Fixed possible buffer overrun in LibRaw::remove_trailing_spaces call
• CR3 decoder: workaround for possible incorrect generation of 64-bit code
• Improved Sony metadata processing
• fixed possible static table read overrun (if specially crafted image data passed to LibRaw)
• Fix for monochrome DNG files compressed as 2-color component LJPEG
• Fixed integer overflow in largest DNG frame selection code
• Additional out-of range checks to better handle specially crafted files
• Prevent out-of-buffer access in phase_one_correct()
• Prevent one-off read in Fuji WB table parsing
• Prevent one-off read in phase_one_correct()
• Do not apply Canon metadata crop values to DNG files
• Adjust profile_length to allocated data size.
• libraw_dng_stream: underlying LibRaw_abstract_datastream buffering restored in destructor call.
• Fixed possible buffer overrun in old panasonic decoder