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title: MrSID Raster SDK Release Notes | Extensis
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## MrSID Raster SDK Release Notes

[System Requirements are here.](https://www.extensis.com/support/developers/mrsid-raster-sdk/system-requirements/?hsLang=en)

**Current version:** 9.5.4 (released 11 January 2018)

### Version 9.5.4

- On Windows, the library is built without `/Zc:wchar_t-` so `wchar_t` is now a compile defined type, which is the VS default behavior. The `/Zc:wchar_t-` option is not required to link with wide string methods in LTFileSpec.
- Added `LTIImage::getMetadataBlob(type, stream)` to get XMP or EXIF metadata stored in MrSID, JPEG, and TIFF files.
- BMPImageWriter supports writing images with an alpha band.
- TIFFImageWriter now allows the the user to set the “endianness” of the output file.
- Added utility methods: 
    - In `LIIImage`: Added `getNumBandsWithoutAlpha()`
    - In `LTIPixel`: Added `setNonAlphaSampleValuesFromDouble()`, `setSampleValuesFromPixel()`, and `setNonAlphaSampleValuesFromPixel()`
    - In `LTIOStreamInf`: Added `readString()`

### Version 9.1

###### Floating Point Support for MrSID Generation 4

- Added support for reading floating point images saved to the MrSID Generation 4 format. These images are created with the quantization compression type, a lossy compression method that reduces the precision of pixel values in the image.
- Added metadata tags for images created with the quantization compression method.

### Version 9.0

###### Multi-Processor Support:

See the User Manual for information about multi-processor support. The TBB shared object must be distributed.

- In `MrSIDImageReader`, `MG3SingleImageReader`, `MG4SingleImageReader`, `MrSIDImageStageManager`: Added `getMaxWorkerThreads()` and `setMaxWorkerThreads()`. See the User Manual for information about the multi-processor support.
- In `J2KImageReader`: Added support for reading GMLJP2 files.
- Removed support for Solaris.
- In `mrsiddecode` and `mrsidinfo`: On Unix, `lib/libgeos.so` must be in `LD_LIBRARY_PATH`.
- In `LTIImageStage`: Added `getPipelineInfo()` to query the pipeline for its properties. This will only affect persons that have derived subclasses of `LTIImageStage`, `LTIImageFilter`, or `LTIImageReader`.
- In `LTIImageReader`: Added `getSourceName()` to improve some error messages. This will only affect persons that have derived subclasses of `LTIImageReader`.
- In `LTIScene`: Added constructor that takes `LTIGeomIntRect` and magnification.

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