changelog.md

Changelog

v0.30 - dresser

Requires libvips v8.12.2

v0.30.6 - TBD

• Allow values for limitInputPixels larger than 32-bit. #3238

• Ensure brew-installed vips can be detected (regression in 0.30.5). #3239

v0.30.5 - 23rd May 2022

• Install: pass PKG_CONFIG_PATH via env rather than substitution. @dwisiswant0

• Add support for --libc flag to improve cross-platform installation. #3160 @joonamo

• Allow installation of prebuilt libvips binaries from filesystem. #3196 @ankurparihar

• Fix rotate-then-extract for EXIF orientation 2. #3218 @jakob0fischl

v0.30.4 - 18th April 2022

• Increase control over sensitivity to invalid images via failOn, deprecate failOnError (equivalent to failOn: 'warning').

• Ensure create input image has correct bit depth and colour space. #3139

• Add support for TypedArray input with byteOffset and length. #3146 @codepage949

• Improve error message when attempting to render SVG input greater than 32767x32767. #3167

• Add missing file name to 'Input file is missing' error message. #3178 @Brodan

v0.30.3 - 14th March 2022

• Allow sharpen options to be provided more consistently as an Object. #2561

• Expose x1, y2 and y3 parameters of sharpen operation. #2935

• Prevent double unpremultiply with some composite blend modes (regression in 0.30.2). #3118

v0.30.2 - 2nd March 2022

• Improve performance and accuracy when compositing multiple images. #2286

• Expand pkgconfig search path for wider BSD support. #3106

• Ensure Windows C++ runtime is linked statically (regression in 0.30.0). #3110 @kleisauke

• Temporarily ignore greyscale ICC profiles to workaround lcms bug. #3112

v0.30.1 - 9th February 2022

• Allow use of toBuffer and toFile on the same instance. #3044

• Skip shrink-on-load for known libjpeg rounding errors. #3066 @kleisauke

• Ensure withoutReduction does not interfere with contain/crop/embed. #3081 @kleisauke

• Ensure affine interpolator is correctly finalised. #3083 @kleisauke

v0.30.0 - 1st February 2022

• Add support for GIF output to prebuilt binaries.

• Reduce minimum Linux ARM64v8 glibc requirement to 2.17.

• Verify prebuilt binaries with a Subresource Integrity check.

• Standardise WebP effort option name, deprecate reductionEffort.

• Standardise HEIF effort option name, deprecate speed.

• Add support for IIIF v3 tile-based output.

• Expose control over CPU effort for palette-based PNG output. #2541

• Improve animated (multi-page) image resize and extract. #2789 @kleisauke

• Expose platform and architecture of vendored binaries as sharp.vendor. #2928

• Ensure 16-bit PNG output uses correct bitdepth. #2958 @gforge

• Properly emit close events for duplex streams. #2976 @driannaude

• Expose unlimited option for SVG and PNG input, switches off safety features. #2984

• Add withoutReduction option to resize operation. #3006 @christopherbradleybanks

• Add resolutionUnit as tiff option and expose in metadata. #3023 @ompal-sisodiya

• Ensure rotate-then-extract works with EXIF mirroring. #3024

v0.29 - circle

Requires libvips v8.11.3

v0.29.3 - 14th November 2021

• Ensure correct dimensions when containing image resized to 1px. #2951

• Impute TIFF xres/yres from density provided to withMetadata. #2952 @mbklein

v0.29.2 - 21st October 2021

• Add timeout function to limit processing time.

• Ensure sharp.versions is populated from vendored libvips.

• Remove animation properties from single page images. #2890

• Allow use of 'tif' to select TIFF output. #2893 @erf

• Improve error message on Windows for version conflict. #2918 @dkrnl

• Throw error rather than exit when invalid binaries detected. #2931

v0.29.1 - 7th September 2021

• Add lightness option to modulate operation. #2846

• Ensure correct PNG bitdepth is set based on number of colours. #2855

• Ensure background is always premultiplied when compositing. #2858

• Ensure images with P3 profiles retain full gamut. #2862

• Add support for libvips compiled with OpenJPEG. #2868

• Remove unsupported animation properties from AVIF output. #2870

• Resolve paths before comparing input/output filenames. #2878 @rexxars

• Allow use of speed 9 (fastest) for HEIF encoding. #2879 @rexxars

v0.29.0 - 17th August 2021

• Drop support for Node.js 10, now requires Node.js >= 12.13.0.

• Add background property to PNG and GIF image metadata.

• Add compression property to HEIF image metadata. #2504

• AVIF encoding now defaults to 4:4:4 chroma subsampling. #2562

• Allow multiple platform-arch binaries in same node_modules installation tree. #2575

• Default to single-channel b-w space when extractChannel is used. #2658

• Allow installation directory to contain spaces (regression in v0.26.0). #2777

• Add pipelineColourspace operator to set the processing space. #2704 @Daiz

• Allow bit depth to be set when using raw input and output. #2762 @mart-jansink

• Allow negate to act only on non-alpha channels. #2808 @rexxars

v0.28 - bijou

Requires libvips v8.10.6

v0.28.3 - 24th May 2021

• Ensure presence of libvips, vendored or global, before invoking node-gyp.

• Skip shrink-on-load for multi-page WebP. #2714

• Add contrast limiting adaptive histogram equalization (CLAHE) operator. #2726 @baparham

v0.28.2 - 10th May 2021

• Allow withMetadata to set density. #967

• Skip shrink-on-load where one dimension <4px. #2653

• Allow escaped proxy credentials. #2664 @msalettes

• Add premultiplied flag for raw pixel data input. #2685 @mnutt

• Detect empty input and throw a helpful error. #2687 @JakobJingleheimer

• Add install-time flag to skip version compatibility checks. #2692 @xemle

v0.28.1 - 5th April 2021

• Ensure all installation errors are logged with a more obvious prefix.

• Allow withMetadata to set and update EXIF metadata. #650

• Add support for OME-TIFF Sub Image File Directories (subIFD). #2557

• Allow ensureAlpha to set the alpha transparency level. #2634

v0.28.0 - 29th March 2021

• Prebuilt binaries now include mozjpeg and libimagequant (BSD 2-Clause).

• Prebuilt binaries limit AVIF support to the most common 8-bit depth.

• Add mozjpeg option to jpeg method, sets mozjpeg defaults.

• Reduce the default PNG compressionLevel to the more commonly used 6.

• Reduce concurrency on glibc-based Linux when using the default memory allocator to help prevent fragmentation.

• Default missing edge properties of extend operation to zero. #2578

• Ensure composite does not clip top and left offsets. #2594 @SHG42

• Improve error handling of network failure at install time. #2608 @abradley

• Ensure @id attribute can be set for IIIF tile-based output. #2612 @edsilv

• Ensure composite replicates the correct number of tiles for centred gravities. #2626

v0.27 - avif

Requires libvips v8.10.5

v0.27.2 - 22nd February 2021

• macOS: Prevent use of globally-installed ARM64 libvips with Rosetta x64 emulation. #2460

• Linux (musl): Prevent use of prebuilt linuxmusl-x64 binaries with musl >= 1.2.0. #2570

• Improve 16-bit grey+alpha support by using libvips' has_alpha detection. #2569

• Allow the use of non lower case extensions with toFormat. #2581 @florian-busch

• Allow use of recomb operation with single channel input. #2584

v0.27.1 - 27th January 2021

• Ensure TIFF is cast when using float predictor. #2502 @randyridge

• Add support for Uint8Array and Uint8ClampedArray input. #2511 @leon

• Revert: ensure all platforms use fontconfig for font rendering. #2515

• Expose libvips gaussnoise operation to allow creation of Gaussian noise. #2527 @alza54

v0.27.0 - 22nd December 2020

• Add support for AVIF to prebuilt binaries.

• Remove experimental status from heif output, defaults are now AVIF-centric.

• Allow negative top/left offsets for composite operation. #2391 @CurosMJ

• Ensure all platforms use fontconfig for font rendering. #2399

v0.26 - zoom

Requires libvips v8.10.0

v0.26.3 - 16th November 2020

• Expose libvips' affine operation. #2336 @guillevc

• Fallback to tar.gz for prebuilt libvips when Brotli not available. #2412 @ascorbic

v0.26.2 - 14th October 2020

• Add support for EXR input. Requires libvips compiled with OpenEXR. #698

• Ensure support for yarn v2. #2379 @jalovatt

• Add centre/center option to tile-based output. #2397 @beig

v0.26.1 - 20th September 2020

• Ensure correct pageHeight when verifying multi-page image dimensions. #2343 @derom

• Allow input density range up to 100000 DPI. #2348 @stefanprobst

• Ensure animation-related properties can be set for Stream-based input. #2369 @AcrylicShrimp

• Ensure stats can be calculated for 1x1 input. #2372

• Ensure animated GIF output is optimised. #2376

v0.26.0 - 25th August 2020

• Prebuilt libvips binaries are now statically-linked and Brotli-compressed, requiring Node.js 10.16.0+.

• TIFF output squash is replaced by bitdepth to reduce to 1, 2 or 4 bit.

• JPEG output quality >= 90 no longer automatically sets chromaSubsampling to 4:4:4.

• Add most dominant colour to image stats. #640

• Add support for animated GIF (requires *magick) and WebP output. #2012 @deftomat

• Add support for libvips ImageMagick v7 loaders. #2258 @vouillon

• Allow multi-page input via *magick. #2259 @vouillon

• Add support to withMetadata for custom ICC profile. #2271 @roborourke

• Ensure prebuilt binaries for ARM default to v7 when using Electron. #2292 @diegodev3

v0.25 - yield

Requires libvips v8.9.1

v0.25.4 - 12th June 2020

• Allow libvips binary location override where version is appended. #2217 @malice00

• Enable PNG palette when setting quality, colours, colors or dither. #2226 @romaleev

• Add level constructor option to use a specific level of a multi-level image. Expose levels metadata for multi-level images. #2222

• Add support for named alpha channel to extractChannel operation. #2138

• Add experimental sharpness calculation to stats() response. #2251

• Emit warning event for non-critical processing problems. #2032

v0.25.3 - 17th May 2020

• Ensure libvips is initialised only once, improves worker thread safety. #2143

• Ensure npm platform flag is respected when copying DLLs. #2188 @dimadeveatii

• Allow SVG input with large inline images to be parsed. #2195

v0.25.2 - 20th March 2020

• Provide prebuilt binaries for Linux ARM64v8.

• Add IIIF layout support to tile-based output. #2098 @edsilv

• Ensure input options are consistently and correctly detected. #2118

• Ensure N-API prebuilt binaries work on RHEL7 and its derivatives. #2119

• Ensure AsyncWorker options are persisted. #2130

v0.25.1 - 7th March 2020

• Ensure prebuilt binaries are fetched based on N-API version. #2117

v0.25.0 - 7th March 2020

• Remove limitInputPixels and sequentialRead previously deprecated in v0.24.0.

• Migrate internals to N-API. #1282

• Add support for 32-bit Windows. #2088

• Ensure correct ordering of rotate-then-trim operations. #2087

• Ensure composite accepts limitInputPixels and sequentialRead input options. #2099

v0.24 - "wit"

Requires libvips v8.9.0.

v0.24.1 - 15^th February 2020

• Prevent use of sequentialRead for EXIF-based rotate operation. #2042

• Ensure RGBA LZW TIFF returns correct channel count. #2064

v0.24.0 - 16^th January 2020

• Drop support for Node.js 8. #1910

• Drop support for undefined input where options also provided. #1768

• Move limitInputPixels and sequentialRead to input options, deprecating functions of the same name.

• Expose delay and loop metadata for animated images. #1905

• Ensure correct colour output for 16-bit, 2-channel PNG input with ICC profile. #2013

• Prevent use of sequentialRead for rotate operations. #2016

• Correctly bind max width and height values when using withoutEnlargement. #2024 @BrychanOdlum

• Add support for input with 16-bit RGB profile. #2037

v0.23 - "vision"

Requires libvips v8.8.1.

v0.23.4 - 5^th December 2019

• Handle zero-length Buffer objects when using Node.js v13.2.0+.

• Expose raw TIFFTAG_PHOTOSHOP metadata. #1600

• Improve thread safety by using copy-on-write when updating metadata. #1986

v0.23.3 - 17^th November 2019

• Ensure trim operation supports images contained in the alpha channel. #1597

• Ensure tile overlap option works as expected. #1921 @rustyguts

• Allow compilation on FreeBSD and variants (broken since v0.23.0) #1952 @pouya-eghbali

• Ensure modulate and other colour-based operations can co-exist. #1958

v0.23.2 - 28^th October 2019

• Add background option to tile output operation. #1924 @neave

• Add support for Node.js 13. #1932 @MayhemYDG

v0.23.1 - 26^th September 2019

• Ensure sharp.format.vips is present and correct (filesystem only). #1813

• Ensure invalid width and height provided as options to resize throw. #1817

• Allow use of 'heic' and 'heif' identifiers with toFormat. #1834 @jaubourg

• Add premultiplied option to composite operation. #1835 @Andargor

• Allow instance reuse with differing toBuffer options. #1860 @RaboliotTheGrey

• Ensure image is at least 3x3 pixels before attempting trim operation.

v0.23.0 - 29^th July 2019

• Remove overlayWith previously deprecated in v0.22.0.

• Add experimental support for HEIF images. Requires libvips compiled with libheif. #1105

• Expose libwebp smartSubsample and reductionEffort options. #1545

• Add experimental support for Worker Threads. #1558

• Use libvips' built-in CMYK and sRGB profiles when required. #1619

• Drop support for Node.js versions 6 and 11. #1674

• Expose skipBlanks option for tile-based output. #1687 @RaboliotTheGrey

• Allow use of failOnError option with Stream-based input. #1691

• Fix rotate/extract ordering for non-90 angles. #1755 @iovdin

v0.22 - "uptake"

Requires libvips v8.7.4.

v0.22.1 - 25^th April 2019

• Add modulate operation for brightness, saturation and hue. #1601 @Goues

• Improve help messaging should require("sharp") fail. #1638 @sidharthachatterjee

• Add support for Node 12. #1668

v0.22.0 - 18^th March 2019

• Remove functions previously deprecated in v0.21.0: background, crop, embed, ignoreAspectRatio, max, min and withoutEnlargement.

• Add composite operation supporting multiple images and blend modes; deprecate overlayWith. #728

• Add support for pages input option for multi-page input. #1566

• Allow Stream-based input of raw pixel data. #1579

• Add support for page input option to GIF and PDF. #1595 @ramiel

v0.21 - "teeth"

Requires libvips v8.7.0.

v0.21.3 - 19^th January 2019

• Input image decoding now fails fast, set failOnError to change this behaviour.

• Failed filesystem-based input now separates missing file and invalid format errors. #1542

v0.21.2 - 13^th January 2019

• Ensure all metadata is removed from PNG output unless withMetadata used.

• Ensure shortest edge is at least one pixel after resizing. #1003

• Add ensureAlpha operation to add an alpha channel, if missing. #1153

• Expose pages and pageHeight metadata for multi-page input images. #1205

• Expose PNG output options requiring libimagequant. #1484

• Expose underlying error message for invalid input. #1505

• Prevent mutatation of options passed to jpeg. #1516

• Ensure forced output format applied correctly when output chaining. #1528

v0.21.1 - 7^th December 2018

• Install: support sharp_dist_base_url npm config, like existing SHARP_DIST_BASE_URL. #1422 @SethWen

• Ensure channel metadata is correct for raw, greyscale output. #1425

• Add support for the "mitchell" kernel for image reductions. #1438 @Daiz

• Allow separate parameters for gamma encoding and decoding. #1439 @Daiz

• Build prototype with Object.assign to allow minification. #1475 @jaubourg

• Expose libvips' recombination matrix operation. #1477 @fromkeith

• Expose libvips' pyramid/tile options for TIFF output. #1483 @mbklein

v0.21.0 - 4^th October 2018

• Deprecate the following resize-related functions: crop, embed, ignoreAspectRatio, max, min and withoutEnlargement. Access to these is now via options passed to the resize function. For example: embed('north') is now resize(width, height, { fit: 'contain', position: 'north' }), crop('attention') is now resize(width, height, { fit: 'cover', position: 'attention' }), max().withoutEnlargement() is now resize(width, height, { fit: 'inside', withoutEnlargement: true }). #1135

• Deprecate the background function. Per-operation background options added to resize, extend and flatten operations. #1392

• Add size to metadata response (Stream and Buffer input only). #695

• Switch from custom trim operation to vips_find_trim. #914

• Add chromaSubsampling and isProgressive properties to metadata response. #1186

• Drop Node 4 support. #1212

• Enable SIMD convolution by default. #1213

• Add experimental prebuilt binaries for musl-based Linux. #1379

• Add support for arbitrary rotation angle via vips_rotate. #1385 @freezy

v0.20 - "prebuild"

Requires libvips v8.6.1.

v0.20.8 - 5^th September 2018

• Avoid race conditions when creating directories during installation. #1358 @ajhool

• Accept floating point values for input density parameter. #1362 @aeirola

v0.20.7 - 21^st August 2018

• Use copy+unlink if rename operation fails during installation. #1345

v0.20.6 - 20^th August 2018

• Add removeAlpha operation to remove alpha channel, if any. #1248

• Expose mozjpeg quant_table flag. #1285 @rexxars

• Allow full WebP alphaQuality range of 0-100. #1290 @sylvaindumont

• Cache libvips binaries to reduce re-install time. #1301

• Ensure vendor platform mismatch throws error at install time. #1303

• Improve install time error messages for FreeBSD users. #1310

• Ensure extractChannel works with 16-bit images. #1330

• Expose depth option for tile-based output. #1342 @alundavies

• Add experimental entropy field to stats response.

v0.20.5 - 27^th June 2018

• Expose libjpeg optimize_coding flag. #1265 @tomlokhorst

v0.20.4 - 20^th June 2018

• Prevent possible rounding error when using shrink-on-load and 90/270 degree rotation. #1241 @anahit42

• Ensure extractChannel sets correct single-channel colour space interpretation. #1257 @jeremychone

v0.20.3 - 29^th May 2018

• Fix tint operation by ensuring LAB interpretation and allowing negative values. #1235 @wezside

v0.20.2 - 28^th April 2018

• Add tint operation to set image chroma. #825 @rikh42

• Add environment variable to ignore globally-installed libvips. #1165 @oncletom

• Add support for page selection with multi-page input (GIF/TIFF). #1204 @woolite64

• Add support for Group4 (CCITTFAX4) compression with TIFF output. #1208 @woolite64

v0.20.1 - 17^th March 2018

• Improve installation experience when a globally-installed libvips below the minimum required version is found. #1148

• Prevent smartcrop error when cumulative rounding is below target size. #1154 @ralrom

• Expose libvips' median filter operation. #1161 @BiancoA

v0.20.0 - 5^th March 2018

• Add support for prebuilt sharp binaries on common platforms. #186

v0.19 - "suit"

Requires libvips v8.6.1.

v0.19.1 - 24^th February 2018

• Expose libvips' linear transform feature. #1024 @3epnm

• Expose angle option for tile-based output. #1121 @BiancoA

• Prevent crop operation when image already at or below target dimensions. #1134 @pieh

v0.19.0 - 11^th January 2018

• Expose offset coordinates of strategy-based crop. #868 @mirohristov-com

• PNG output now defaults to adaptiveFiltering=false, compressionLevel=9 #872 @wmertens

• Add stats feature for pixel-derived image statistics. #915 @rnanwani

• Add failOnError option to fail-fast on bad input image data. #976 @mceachen

• Resize: switch to libvips' implementation, make fastShrinkOnLoad optional, remove interpolator and centreSampling options. #977 @jardakotesovec

• Attach finish event listener to a clone only for Stream-based input. #995 @whmountains

• Add tilecache before smartcrop to avoid over-computation of previous operations. #1028 @coffeebite

• Prevent toFile extension taking precedence over requested format. #1037 @tomgallagher

• Add support for gravity option to existing embed feature. #1038 @AzureByte

• Expose IPTC and XMP metadata when available. #1079 @oaleynik

• TIFF output: switch default predictor from 'none' to 'horizontal' to match libvips' behaviour.

v0.18 - "ridge"

Requires libvips v8.5.5.

v0.18.4 - 18^th September 2017

• Ensure input Buffer really is marked as Persistent, prevents mark-sweep GC. #950 @lfdoherty

v0.18.3 - 13^th September 2017

• Skip shrink-on-load when trimming. #888 @kleisauke

• Migrate from got to simple-get for basic auth support. #945 @pbomb

v0.18.2 - 1^st July 2017

• Expose libvips' xres and yres properties for TIFF output. #828 @YvesBos

• Ensure flip and flop operations work with auto-rotate. #837 @rexxars

• Allow binary download URL override via SHARP_DIST_BASE_URL env variable. #841

• Add support for Solus Linux. #857 @ekremkaraca

v0.18.1 - 30^th May 2017

• Remove regression from #781 that could cause incorrect shrink calculation. #831 @suprMax

v0.18.0 - 30^th May 2017

• Remove the previously-deprecated output format "option" functions: quality, progressive, compressionLevel, withoutAdaptiveFiltering, withoutChromaSubsampling, trellisQuantisation, trellisQuantization, overshootDeringing, optimiseScans and optimizeScans.

• Ensure maximum output dimensions are based on the format to be used. #176 @stephanebachelier

• Avoid costly (un)premultiply when using overlayWith without alpha channel. #573 @strarsis

• Include pixel depth (e.g. "uchar") when reading metadata. #577 @moedusa

• Add support for Buffer and Stream-based TIFF output. #587 @strarsis

• Expose warnings from libvips via NODE_DEBUG=sharp environment variable. #607 @puzrin

• Switch to the libvips implementation of "attention" and "entropy" crop strategies. #727

• Improve performance and accuracy of nearest neighbour integral upsampling. #752 @MrIbby

• Constructor single argument API: allow plain object, reject null/undefined. #768 @kub1x

• Ensure ARM64 pre-built binaries use correct C++11 ABI version. #772 @ajiratech2

• Prevent aliasing by using dynamic values for shrink(-on-load). #781 @kleisauke

• Expose libvips' "squash" parameter to enable 1-bit TIFF output. #783 @YvesBos

• Add support for rotation using any multiple of +/-90 degrees. #791 @ncoden

• Add "jpg" alias to toFormat as shortened form of "jpeg". #814 @jingsam

v0.17 - "quill"

Requires libvips v8.4.2.

v0.17.3 - 1^st April 2017

• Allow toBuffer to optionally resolve a Promise with both info and data. #143 @salzhrani

• Create blank image of given width, height, channels and background. #470 @pjarts

• Add support for the "nearest" kernel for image reductions. #732 @alice0meta

• Add support for TIFF compression and predictor options. #738 @kristojorg

v0.17.2 - 11^th February 2017

• Ensure Readable side of Stream can start flowing after Writable side has finished. #671 @danhaller

• Expose WebP alpha quality, lossless and near-lossless output options. #685 @rnanwani

v0.17.1 - 15^th January 2017

• Improve error messages for invalid parameters. @spikeon #644

• Simplify expression for finding vips-cpp libdir. #656

• Allow HTTPS-over-HTTP proxy when downloading pre-compiled dependencies. @wangzhiwei1888 #679

v0.17.0 - 11^th December 2016

• Drop support for versions of Node prior to v4.

• Deprecate the following output format "option" functions: quality, progressive, compressionLevel, withoutAdaptiveFiltering, withoutChromaSubsampling, trellisQuantisation, trellisQuantization, overshootDeringing, optimiseScans and optimizeScans. Access to these is now via output format functions, for example quality(n) is now jpeg({quality: n}) and/or webp({quality: n}).

• Autoconvert GIF and SVG input to PNG output if no other format is specified.

• Expose libvips' "centre" resize option to mimic *magick's +0.5px convention. #568

• Ensure support for embedded base64 PNG and JPEG images within an SVG. #601 @dynamite-ready

• Ensure premultiply operation occurs before box filter shrink. #605 @CmdrShepardsPie @teroparvinen

• Add support for PNG and WebP tile-based output formats (in addition to JPEG). #622 @ppaskaris

• Allow use of extend with greyscale input. #623 @ppaskaris

• Allow non-RGB input to embed/extend onto background with an alpha channel. #646 @DaGaMs

v0.16 - "pencil"

Requires libvips v8.3.3

v0.16.2 - 22^nd October 2016

• Restrict readelf usage to Linux only when detecting global libvips version. #602 @caoko

v0.16.1 - 13^th October 2016

• C++11 ABI version is now auto-detected, remove sharp-cxx11 installation flag.

• Add experimental 'attention' crop strategy. #295

• Include .node extension for Meteor's require() implementation. #537 @isjackwild

• Ensure convolution kernel scale is clamped to a minimum value of 1. #561 @abagshaw

• Correct calculation of y-axis placement when overlaying image at a fixed point. #566 @Nateowami

v0.16.0 - 18^th August 2016

• Add pre-compiled libvips for OS X, ARMv7 and ARMv8. #312

• Ensure boolean, bandbool, extractChannel ops occur before sRGB conversion. #504 @mhirsch

• Recalculate factors after WebP shrink-on-load to avoid round-to-zero errors. #508 @asilvas

• Prevent boolean errors during extract operation. #511 @mhirsch

• Add joinChannel and toColourspace/toColorspace operations. #513 @mhirsch

• Add support for raw pixel data with boolean and withOverlay operations. #516 @mhirsch

• Prevent bandbool creating a single channel sRGB image. #519 @mhirsch

• Ensure ICC profiles are removed from PNG output unless withMetadata used. #521 @ChrisPinewood

• Add alpha channels, if missing, to overlayWith images. #540 @cmtt

• Remove deprecated interpolateWith method - use resize(w, h, { interpolator: ... }) #310

v0.15 - "outfit"

Requires libvips v8.3.1

v0.15.1 - 12^th July 2016

• Concat Stream-based input in single operation for ~+3% perf and less GC. #429 @papandreou

• Add alpha channel, if required, before extend operation. #439 @frulo

• Allow overlay image to be repeated across entire image via tile option. #443 @lemnisk8

• Add cutout option to overlayWith feature, applies only the alpha channel of the overlay image. #448 @kleisauke

• Ensure scaling factors are calculated independently to prevent rounding errors. #452 @puzrin

• Add --sharp-cxx11 flag to compile with gcc's new C++11 ABI. #456 @kapouer

• Add top/left offset support to overlayWith operation. #473 @rnanwani

• Add convolve operation for kernel-based convolution. #479 @mhirsch

• Add greyscale option to threshold operation for colourspace conversion control. #480 @mhirsch

• Ensure ICC profiles are licenced for distribution. #486 @kapouer

• Allow images with an alpha channel to work with LAB-colourspace based sharpen. #490 @jwagner

• Add trim operation to remove "boring" edges. #492 @kleisauke

• Add bandbool feature for channel-wise boolean operations. #496 @mhirsch

• Add extractChannel operation to extract a channel from an image. #497 @mhirsch

• Add ability to read and write native libvips .v files. #500 @mhirsch

• Add boolean feature for bitwise image operations. #501 @mhirsch

v0.15.0 - 21^st May 2016

• Use libvips' new Lanczos 3 kernel as default for image reduction. Deprecate interpolateWith method, now provided as a resize option. #310 @jcupitt

• Take advantage of libvips v8.3 features. Add support for libvips' new GIF and SVG loaders. Pre-built binaries now include giflib and librsvg, exclude *magick. Use shrink-on-load for WebP input. Break existing sharpen API to accept sigma and improve precision. #369

• Remove unnecessary (un)premultiply operations when not resizing/compositing. #413 @jardakotesovec

v0.14 - "needle"

Requires libvips v8.2.3

v0.14.1 - 16^th April 2016

• Allow removal of limitation on input pixel count via limitInputPixels. Use with care. #250 #316 @anandthakker @kentongray

• Use final output image for metadata passed to callback. #399 @salzhrani

• Add support for writing tiled images to a zip container. #402 @felixbuenemann

• Allow use of embed with 1 and 2 channel images. #411 @janaz

• Improve Electron compatibility by allowing node-gyp rebuilds without npm. #412 @nouh

v0.14.0 - 2^nd April 2016

• Add ability to extend (pad) the edges of an image. #128 @blowsie

• Add support for Zoomify and Google tile layouts. Breaks existing tile API. #223 @bdunnette

• Improvements to overlayWith: differing sizes/formats, gravity, buffer input. #239 @chrisriley

• Add entropy-based crop strategy to remove least interesting edges. #295 @rightaway

• Expose density metadata; set density of images from vector input. #338 @lookfirst

• Emit post-processing 'info' event for Stream output. #367 @salzhrani

• Ensure output image EXIF Orientation values are within 1-8 range. #385 @jtobinisaniceguy

• Ensure ratios are not swapped when rotating 90/270 and ignoring aspect. #387 @kleisauke

• Remove deprecated style of calling extract API. Breaks calls using positional arguments. #276

v0.13 - "mind"

Requires libvips v8.2.2

v0.13.1 - 27^th February 2016

• Fix embedding onto transparent backgrounds; regression introduced in v0.13.0. #366 @diegocsandrim

v0.13.0 - 15^th February 2016

• Improve vector image support by allowing control of density/DPI. Switch pre-built libs from Imagemagick to Graphicsmagick. #110 @bradisbell

• Add support for raw, uncompressed pixel Buffer/Stream input. #220 @mikemorris

• Switch from libvips' C to C++ bindings, requires upgrade to v8.2.2. #299

• Control number of open files in libvips' cache; breaks existing cache behaviour. #315 @impomezia

• Ensure 16-bit input images can be normalised and embedded onto transparent backgrounds. #339 #340 @janaz

• Ensure selected format takes precedence over any unknown output filename extension. #344 @ubaltaci

• Add support for libvips' PBM, PGM, PPM and FITS image format loaders. #347 @oaleynik

• Ensure default crop gravity is center/centre. #351 @joelmukuthu

• Improve support for musl libc systems e.g. Alpine Linux. #354 #359 @download13 @wjordan

• Small optimisation when reducing by an integral factor to favour shrink over affine.

• Add support for gamma correction of images with an alpha channel.

v0.12 - "look"

Requires libvips v8.2.0

v0.12.2 - 16^th January 2016

• Upgrade libvips to v8.2.0 for improved vips_shrink.

• Add pre-compiled libvips for ARMv6+ CPUs.

• Ensure 16-bit input images work with embed option. #325 @janaz

• Allow compilation with gmake to provide FreeBSD support. #326 @c0decafe

• Attempt to remove temporary file after installation. #331 @dtoubelis

v0.12.1 - 12^th December 2015

• Allow use of SIMD vector instructions (via liborc) to be toggled on/off. #172 @bkw @puzrin

• Ensure embedded ICC profiles output with perceptual intent. #321 @vlapo

• Use the NPM-configured HTTPS proxy, if any, for binary downloads.

v0.12.0 - 23^rd November 2015

• Bundle pre-compiled libvips and its dependencies for 64-bit Linux and Windows. #42

• Take advantage of libvips v8.1.0+ features. #152

• Add support for 64-bit Windows. Drop support for 32-bit Windows. #224 @sabrehagen

• Switch default interpolator to bicubic. #289 @mahnunchik

• Pre-extract rotatation should not swap width/height. #296 @asilvas

• Ensure 16-bit+alpha input images are (un)premultiplied correctly. #301 @izaakschroeder

• Add threshold operation. #303 @dacarley

• Add negate operation. #306 @dacarley

• Support options Object with existing extract operation. #309 @papandreou

v0.11 - "knife"

v0.11.4 - 5^th November 2015

• Add corners, e.g. northeast, to existing gravity option. #291 @brandonaaron

• Ensure correct auto-rotation for EXIF Orientation values 2 and 4. #288 @brandonaaron

• Make static linking possible via --runtime_link install option. #287 @vlapo

v0.11.3 - 8^th September 2015

• Intrepret blurSigma, sharpenFlat, and sharpenJagged as double precision. #263 @chrisriley

v0.11.2 - 28^th August 2015

• Allow crop gravity to be provided as a String. #255 @papandreou
• Add support for io.js v3 and Node v4. #246

v0.11.1 - 12^th August 2015

• Silence MSVC warning: "C4530: C++ exception handler used, but unwind semantics are not enabled". #244 @TheThing

• Suppress gamma correction for input image with alpha transparency. #249 @compeak

v0.11.0 - 15^th July 2015

• Allow alpha transparency compositing via new overlayWith method. #97 @gasi

• Expose raw ICC profile data as a Buffer when using metadata. #129 @homerjam

• Allow image header updates via a parameter passed to existing withMetadata method. Provide initial support for EXIF Orientation tag, which if present is now removed when using rotate, flip or flop. #189 @h2non

• Tighten constructor parameter checks. #221 @mikemorris

• Allow one input Stream to be shared with two or more output Streams via new clone method. #235 @jaubourg

• Use round instead of floor when auto-scaling dimensions to avoid floating-point rounding errors. #238 @richardadjogah

v0.10 - "judgment"

v0.10.1 - 1^st June 2015

• Allow embed of image with alpha transparency onto non-transparent background. #204 @mikemliu

• Include C standard library for atoi as Xcode 6.3 appears to no longer do this. #228 @doggan

v0.10.0 - 23^rd April 2015

• Add support for Windows (x86). #19 @DullReferenceException @itsananderson

• Add support for Openslide input and DeepZoom output. #146 @mvictoras

• Allow arbitrary aspect ratios when resizing images via new ignoreAspectRatio method. #192 @skedastik

• Enhance output image contrast by stretching its luminance to cover the full dynamic range via new normalize method. #194 @bkw @codingforce