LibRaw 0.15.2 fixes two more problems:

• Fixed possible double call to free() on error recovery on damaged full-color (Foveon, sRAW) files.
• wchar_t* file interface disabled for MinGW32 compilation

LibRaw 0.15 Release available for download and use
New camera/format support

• Adobe DNG: fast Load DNG (LightRoom 4.x), support for
  lossy-compressed DNG (LR 4.x, requires libjpeg 6+)
• Canon: G1 X, SX220 HS, EOS 5D Mark III, EOS 650D, EOS 1D-X,
  100D (Rebel SL1), 700D (Rebel T5i), 6D, EOS M, G15, S110, SX50
• Casio: X-S1, HS30EXR, X1-Pro, EX-ZR100,EX-Z8
• Fujifilm: X-E1, X20, X100S, SL1000, HS50EXR, F800EXR, XF1
• Leica: D-LUX6 and V-LUX4
• Nikon: D4, D3200, D800, D800E, 1 J2, 1 V2, D600, 1 J3, 1 S1, Coolpix A,
  Coolpix P330, Coolpix P7700, D7100
• Olympus: E-M5, XZ-2, XZ-10, E-PL5, E-PM2
• Panasonic: G5, G6, DMC-GF5, FZ200, GH3, LX7
• Pentax: MX-1, K-5 II, K-5 IIs, K-30, Q10
• Samsung: EX2F, NX20, NX210, support for the new firmware for NX100
• Sigma: SD15, SD1, SD1 Merill, DP1, DP1S, DP1X, DP2, DP2S, DP2X
  (only with Demosaic-pack-GPL2)
• Sony: SLT-A58, RX-1, SLT-A99, NEX-5R, NEX-6, NEX-F3, SLT-A37, SLT-A57
• Multishot files: Imacon Ixpress 39Mpix

API changes

1. dcraw_process() can now be called several times with different parameters
   without re-opening and unpacking the file for second and consecutive
   calls to dcraw_process
2. Deleted (nobody uses those)
   • LibRaw::dcraw_document_mode_processing (and respective C-API)
   • imgdata.color.color_flags data field
3. LibRaw::unpack() now decodes data into different buffers, the buffer
   depends on the raw data type
   • imgdata.rawdata.raw_image - 1 color component per pixel,
     for b/w and Bayer type sensors
   • imgdata.rawdata.color3_image - 3 color components per pixel,
     sRAW/mRAW files, RawSpeed decoding
   • imgdata.rawdata.color4_image - 4 components per pixel, the 4th
     component can be void
4. Support for compiling with RawSpeed library, http://rawstudio.org/blog/?p=800
   details are in README.RawSpeed
5. Suppression of banding
6. New API calls
   • recycle_datastream(),
   • open_file(wchar_t*) (Win32)

LibRaw 0.15 Beta4 changes:

• Fixed possible buffer overrun when RawSpeed library used
• Added new C++ API Call LibRaw::recycle_datastream(), C API call
  libraw_recycle_datastream() and new errorcode LIBRAW_INPUT_CLOSED
  for unpack/unpack_thumb() calls.

  These new API calls may be used to free file handle (and associated
  file buffer) if your application will not call unpack*() on this
  LibRaw handle, so file may be unlocked.

• Support for Imacon Ixpress 39Mpix Multi-shot files

• Preliminary support for new cameras:
  • Canon: G15, S110, SX50
  • Fujifilm: F800EXR, XF1
  • Nikon: 1 J2, 1 V2, D600
  • Olympus: E-PL5, E-PM2
  • Panasonic: FZ200, GH3, LX7
  • Pentax: K-5 II, K-5 IIs, K-30, Q10
  • Sony: SLT-A99, NEX-5R, NEX-6
• LibRaw::subtract_black() return type is now integer. Function returns errorcode according to libraw error conversion.
• New processing stage LIBRAW_PROGRESS_RAW2_IMAGE (this flag is set by LibRaw::raw2image() call)
• New warning flag LIBRAW_WARN_RAWSPEED_PROCESSED
  - not really a warning, but information that RawSpeed library was used for image decoding.
• imgdata.rawdata.color_image is now split to two pointers:
  - ushort (*)[3] color3_image for 3-component RAW images (color DNGs, sRAW)
  - ushort (*)[4] color4_image for 4-component color raws (Sinar 4shot, Kodak RAWs and so on).
• imgdata.idata.sizes.raw_pitch is now in *bytes* This value should be used for access rows in imgdata.rawdata.*_image buffers.

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LibRaw 0.15-Alpha4 introduces a lot of changes:

• Alpha-quality (i.e. untested) RawSpeed library support (http://rawstudio.org/blog/?p=800) Decoding (LibRaw::unpack()) of supported formats is 1.5-3x times faster.
• OpenMP speedup for linear interpolation
• Disabled decoding JPEG (lossy DNG) data from memory buffer for libjpeg version less than 8. Use -DUSE_JPEG8 if your jpeg is v8+
• hotspots moved to virtual functions
• is_phaseone_compressed() call
• PhaseOne RAWs: for user-specified black level(s) black subtraction works as expected.
• ABI and API changed, all programs using 0.15-Alpha1-3 should be recompiled!

More on RawSpeed support: