2021-06-03 13:13:52 +02:00
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---
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title: What's new in 8.11
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---
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libvips 8.11 is almost now out, so here's a quick overview of what's new. Check
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the [ChangeLog](https://github.com/libvips/libvips/blob/master/ChangeLog)
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if you need more details.
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Credit to Zeranoe, DarthSim, Projkt-James, afontenot, erdmann, kleisauke
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and others for their great work on this release.
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[Lunaphore](https://www.lunaphore.ch/) kindly sponsored the development of
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the new JPEG2000 features, see below.
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# Loadable modules for some image format loaders
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- move openslide, libheif, poppler and magick to loadable modules [kleisauke]
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# Experimental JPEG-XL support
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2021-06-03 13:38:03 +02:00
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(JPEG-XL)[https://jpeg.org/jpegxl/] is a promising new iteration of the JPEG
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standard that's currently being developed. The Chrome web browser supports
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it, though behind a flag. It looks like it might be enabled by default this
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autumn in Chrome 89. libvips 8.11 includes experimental support for JPEG-XL
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load and save.
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There have been several attempts to replace JPEG with something better in the
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last few years. HEIC is perhaps the best known: it can compress files to
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about half the size of comparable JPEGs and supports a range of useful
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features, like animations, transparency and lossless
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compression. Unfortunately, it has some patent issues which may limit its
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usefulness.
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AVIF is rather like HEIC, but has no patents attached to it. Sadly the
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available load and save libraries are extremely slow.
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JPEG-XL looks like it might avoid all these problems: it offers the same great
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compression and useful features as HEIC and AVIF, but has no problems with
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patents, and is fast enough for practical use.
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I made a sample image. You'll need to zoom in to check details:
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Compression and decompression is quite a bit quicker than HEIC:
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```
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$ time vips copy astronauts.png x.jxl
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real 0m0.218s
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user 0m0.291s
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sys 0m0.204s
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$ time vips copy astronauts.png x.heic
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real 0m0.413s
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user 0m1.273s
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sys 0m0.048s
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```
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2021-06-03 13:13:52 +02:00
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# Thread recycling
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- new threading model has a single threadpool shared by all
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pipelines [kleisauke]
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# Full-colour text rendering
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- add "rgba" flag to `vips_text()` to enable full colour text rendering
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# JPEG2000 support
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- add jp2kload, jp2ksave
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- add jp2k compression to tiff load and save
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# More loaders and savers moved to the new source / target framework
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- add `vips_jpegload_source()` and `vips_svgload_source()` to public C API
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- add `vips_source_g_input_stream_new()` to load images from a GInputStream
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- add `openslideload_source()`, `vipsload_source()`, `vipssave_target()`
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- vipsthumbnail supports stdin / stdout thumbnailing
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- add `vips_fitsload_source()`, `vips_niftiload_source()`
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- add source load support for pdfium
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# C++ API improments
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- integrate doxygen in build system to generate C++ API docs
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- improve C++ API doc comments
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- add VipsInterpolate and guint64 support to C++ API
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- add `VImage::new_from_memory_steal` [Zeranoe]
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# New and improved image processing operations
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- add "seed" param to perlin, worley and gaussnoise
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- add hist path to rank for large windows on uchar images
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- `hist_find` outputs a double histogram for large images [erdmann]
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- add `black_point_compensation` flag for icc transforms
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- better detection of invalid ICC profiles, better fallback paths
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# Other
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- better 8/16-bit choice for pngsave
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- png and gif load note background colour as metadata [781545872]
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- add GIF load with libnsgif
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- add "premultiply" flag to tiffsave
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- have a lock just for pdfium [DarthSim]
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- avoid NaN in mapim [afontenot]
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- fix ref leaks in mosaicing package
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- run libvips leak test in CI
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- get pdfium load building again [Projkt-James]
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As usual,
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the [ChangeLog](https://github.com/libvips/libvips/blob/master/ChangeLog)
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has more details, if you're interested.
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