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sharp/docs/changelog.md
Lovell Fuller 9c06df08a1 Docs: changelog entry for #2687
2021-05-03 10:01:17 +01:00

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# Changelog
## v0.28 - *bijou*
Requires libvips v8.10.6
### v0.28.2 - TBD
* Allow `withMetadata` to set `density`.
[#967](https://github.com/lovell/sharp/issues/967)
* Skip shrink-on-load where one dimension <4px.
[#2653](https://github.com/lovell/sharp/issues/2653)
* Allow escaped proxy credentials.
[#2664](https://github.com/lovell/sharp/pull/2664)
[@msalettes](https://github.com/msalettes)
* Detect empty input and throw a helpful error.
[#2687](https://github.com/lovell/sharp/pull/2687)
[@JakobJingleheimer](https://github.com/JakobJingleheimer)
### 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](https://github.com/lovell/sharp/issues/650)
* Add support for OME-TIFF Sub Image File Directories (subIFD).
[#2557](https://github.com/lovell/sharp/issues/2557)
* Allow `ensureAlpha` to set the alpha transparency level.
[#2634](https://github.com/lovell/sharp/issues/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](https://github.com/lovell/sharp/issues/2578)
* Ensure composite does not clip top and left offsets.
[#2594](https://github.com/lovell/sharp/pull/2594)
[@SHG42](https://github.com/SHG42)
* Improve error handling of network failure at install time.
[#2608](https://github.com/lovell/sharp/pull/2608)
[@abradley](https://github.com/abradley)
* Ensure `@id` attribute can be set for IIIF tile-based output.
[#2612](https://github.com/lovell/sharp/issues/2612)
[@edsilv](https://github.com/edsilv)
* Ensure composite replicates the correct number of tiles for centred gravities.
[#2626](https://github.com/lovell/sharp/issues/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](https://github.com/lovell/sharp/issues/2460)
* Linux (musl): Prevent use of prebuilt linuxmusl-x64 binaries with musl >= 1.2.0.
[#2570](https://github.com/lovell/sharp/issues/2570)
* Improve 16-bit grey+alpha support by using libvips' `has_alpha` detection.
[#2569](https://github.com/lovell/sharp/issues/2569)
* Allow the use of non lower case extensions with `toFormat`.
[#2581](https://github.com/lovell/sharp/pull/2581)
[@florian-busch](https://github.com/florian-busch)
* Allow use of `recomb` operation with single channel input.
[#2584](https://github.com/lovell/sharp/issues/2584)
### v0.27.1 - 27th January 2021
* Ensure TIFF is cast when using float predictor.
[#2502](https://github.com/lovell/sharp/pull/2502)
[@randyridge](https://github.com/randyridge)
* Add support for Uint8Array and Uint8ClampedArray input.
[#2511](https://github.com/lovell/sharp/pull/2511)
[@leon](https://github.com/leon)
* Revert: ensure all platforms use fontconfig for font rendering.
[#2515](https://github.com/lovell/sharp/issues/2515)
* Expose libvips gaussnoise operation to allow creation of Gaussian noise.
[#2527](https://github.com/lovell/sharp/pull/2527)
[@alza54](https://github.com/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](https://github.com/lovell/sharp/pull/2391)
[@CurosMJ](https://github.com/CurosMJ)
* Ensure all platforms use fontconfig for font rendering.
[#2399](https://github.com/lovell/sharp/issues/2399)
## v0.26 - *zoom*
Requires libvips v8.10.0
### v0.26.3 - 16th November 2020
* Expose libvips' affine operation.
[#2336](https://github.com/lovell/sharp/pull/2336)
[@guillevc](https://github.com/guillevc)
* Fallback to tar.gz for prebuilt libvips when Brotli not available.
[#2412](https://github.com/lovell/sharp/pull/2412)
[@ascorbic](https://github.com/ascorbic)
### v0.26.2 - 14th October 2020
* Add support for EXR input. Requires libvips compiled with OpenEXR.
[#698](https://github.com/lovell/sharp/issues/698)
* Ensure support for yarn v2.
[#2379](https://github.com/lovell/sharp/pull/2379)
[@jalovatt](https://github.com/jalovatt)
* Add centre/center option to tile-based output.
[#2397](https://github.com/lovell/sharp/pull/2397)
[@beig](https://github.com/beig)
### v0.26.1 - 20th September 2020
* Ensure correct pageHeight when verifying multi-page image dimensions.
[#2343](https://github.com/lovell/sharp/pull/2343)
[@derom](https://github.com/derom)
* Allow input density range up to 100000 DPI.
[#2348](https://github.com/lovell/sharp/pull/2348)
[@stefanprobst](https://github.com/stefanprobst)
* Ensure animation-related properties can be set for Stream-based input.
[#2369](https://github.com/lovell/sharp/pull/2369)
[@AcrylicShrimp](https://github.com/AcrylicShrimp)
* Ensure `stats` can be calculated for 1x1 input.
[#2372](https://github.com/lovell/sharp/issues/2372)
* Ensure animated GIF output is optimised.
[#2376](https://github.com/lovell/sharp/issues/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](https://github.com/lovell/sharp/issues/640)
* Add support for animated GIF (requires \*magick) and WebP output.
[#2012](https://github.com/lovell/sharp/pull/2012)
[@deftomat](https://github.com/deftomat)
* Add support for libvips ImageMagick v7 loaders.
[#2258](https://github.com/lovell/sharp/pull/2258)
[@vouillon](https://github.com/vouillon)
* Allow multi-page input via \*magick.
[#2259](https://github.com/lovell/sharp/pull/2259)
[@vouillon](https://github.com/vouillon)
* Add support to `withMetadata` for custom ICC profile.
[#2271](https://github.com/lovell/sharp/pull/2271)
[@roborourke](https://github.com/roborourke)
* Ensure prebuilt binaries for ARM default to v7 when using Electron.
[#2292](https://github.com/lovell/sharp/pull/2292)
[@diegodev3](https://github.com/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](https://github.com/lovell/sharp/pull/2217)
[@malice00](https://github.com/malice00)
* Enable PNG palette when setting quality, colours, colors or dither.
[#2226](https://github.com/lovell/sharp/pull/2226)
[@romaleev](https://github.com/romaleev)
* Add `level` constructor option to use a specific level of a multi-level image.
Expose `levels` metadata for multi-level images.
[#2222](https://github.com/lovell/sharp/issues/2222)
* Add support for named `alpha` channel to `extractChannel` operation.
[#2138](https://github.com/lovell/sharp/issues/2138)
* Add experimental `sharpness` calculation to `stats()` response.
[#2251](https://github.com/lovell/sharp/issues/2251)
* Emit `warning` event for non-critical processing problems.
[#2032](https://github.com/lovell/sharp/issues/2032)
### v0.25.3 - 17th May 2020
* Ensure libvips is initialised only once, improves worker thread safety.
[#2143](https://github.com/lovell/sharp/issues/2143)
* Ensure npm platform flag is respected when copying DLLs.
[#2188](https://github.com/lovell/sharp/pull/2188)
[@dimadeveatii](https://github.com/dimadeveatii)
* Allow SVG input with large inline images to be parsed.
[#2195](https://github.com/lovell/sharp/issues/2195)
### v0.25.2 - 20th March 2020
* Provide prebuilt binaries for Linux ARM64v8.
* Add IIIF layout support to tile-based output.
[#2098](https://github.com/lovell/sharp/pull/2098)
[@edsilv](https://github.com/edsilv)
* Ensure input options are consistently and correctly detected.
[#2118](https://github.com/lovell/sharp/issues/2118)
* Ensure N-API prebuilt binaries work on RHEL7 and its derivatives.
[#2119](https://github.com/lovell/sharp/issues/2119)
* Ensure AsyncWorker options are persisted.
[#2130](https://github.com/lovell/sharp/issues/2130)
### v0.25.1 - 7th March 2020
* Ensure prebuilt binaries are fetched based on N-API version.
[#2117](https://github.com/lovell/sharp/issues/2117)
### v0.25.0 - 7th March 2020
* Remove `limitInputPixels` and `sequentialRead` previously deprecated in v0.24.0.
* Migrate internals to N-API.
[#1282](https://github.com/lovell/sharp/issues/1282)
* Add support for 32-bit Windows.
[#2088](https://github.com/lovell/sharp/issues/2088)
* Ensure correct ordering of rotate-then-trim operations.
[#2087](https://github.com/lovell/sharp/issues/2087)
* Ensure composite accepts `limitInputPixels` and `sequentialRead` input options.
[#2099](https://github.com/lovell/sharp/issues/2099)
## v0.24 - "*wit*"
Requires libvips v8.9.0.
### v0.24.1 - 15<sup>th</sup> February 2020
* Prevent use of sequentialRead for EXIF-based rotate operation.
[#2042](https://github.com/lovell/sharp/issues/2042)
* Ensure RGBA LZW TIFF returns correct channel count.
[#2064](https://github.com/lovell/sharp/issues/2064)
### v0.24.0 - 16<sup>th</sup> January 2020
* Drop support for Node.js 8.
[#1910](https://github.com/lovell/sharp/issues/1910)
* Drop support for undefined input where options also provided.
[#1768](https://github.com/lovell/sharp/issues/1768)
* Move `limitInputPixels` and `sequentialRead` to input options, deprecating functions of the same name.
* Expose `delay` and `loop` metadata for animated images.
[#1905](https://github.com/lovell/sharp/issues/1905)
* Ensure correct colour output for 16-bit, 2-channel PNG input with ICC profile.
[#2013](https://github.com/lovell/sharp/issues/2013)
* Prevent use of sequentialRead for rotate operations.
[#2016](https://github.com/lovell/sharp/issues/2016)
* Correctly bind max width and height values when using withoutEnlargement.
[#2024](https://github.com/lovell/sharp/pull/2024)
[@BrychanOdlum](https://github.com/BrychanOdlum)
* Add support for input with 16-bit RGB profile.
[#2037](https://github.com/lovell/sharp/issues/2037)
## v0.23 - "*vision*"
Requires libvips v8.8.1.
### v0.23.4 - 5<sup>th</sup> December 2019
* Handle zero-length Buffer objects when using Node.js v13.2.0+.
* Expose raw TIFFTAG_PHOTOSHOP metadata.
[#1600](https://github.com/lovell/sharp/issues/1600)
* Improve thread safety by using copy-on-write when updating metadata.
[#1986](https://github.com/lovell/sharp/issues/1986)
### v0.23.3 - 17<sup>th</sup> November 2019
* Ensure `trim` operation supports images contained in the alpha channel.
[#1597](https://github.com/lovell/sharp/issues/1597)
* Ensure tile `overlap` option works as expected.
[#1921](https://github.com/lovell/sharp/pull/1921)
[@rustyguts](https://github.com/rustyguts)
* Allow compilation on FreeBSD and variants (broken since v0.23.0)
[#1952](https://github.com/lovell/sharp/pull/1952)
[@pouya-eghbali](https://github.com/pouya-eghbali)
* Ensure `modulate` and other colour-based operations can co-exist.
[#1958](https://github.com/lovell/sharp/issues/1958)
### v0.23.2 - 28<sup>th</sup> October 2019
* Add `background` option to tile output operation.
[#1924](https://github.com/lovell/sharp/pull/1924)
[@neave](https://github.com/neave)
* Add support for Node.js 13.
[#1932](https://github.com/lovell/sharp/pull/1932)
[@MayhemYDG](https://github.com/MayhemYDG)
### v0.23.1 - 26<sup>th</sup> September 2019
* Ensure `sharp.format.vips` is present and correct (filesystem only).
[#1813](https://github.com/lovell/sharp/issues/1813)
* Ensure invalid `width` and `height` provided as options to `resize` throw.
[#1817](https://github.com/lovell/sharp/issues/1817)
* Allow use of 'heic' and 'heif' identifiers with `toFormat`.
[#1834](https://github.com/lovell/sharp/pull/1834)
[@jaubourg](https://github.com/jaubourg)
* Add `premultiplied` option to `composite` operation.
[#1835](https://github.com/lovell/sharp/pull/1835)
[@Andargor](https://github.com/Andargor)
* Allow instance reuse with differing `toBuffer` options.
[#1860](https://github.com/lovell/sharp/pull/1860)
[@RaboliotTheGrey](https://github.com/RaboliotTheGrey)
* Ensure image is at least 3x3 pixels before attempting trim operation.
### v0.23.0 - 29<sup>th</sup> July 2019
* Remove `overlayWith` previously deprecated in v0.22.0.
* Add experimental support for HEIF images. Requires libvips compiled with libheif.
[#1105](https://github.com/lovell/sharp/issues/1105)
* Expose libwebp `smartSubsample` and `reductionEffort` options.
[#1545](https://github.com/lovell/sharp/issues/1545)
* Add experimental support for Worker Threads.
[#1558](https://github.com/lovell/sharp/issues/1558)
* Use libvips' built-in CMYK and sRGB profiles when required.
[#1619](https://github.com/lovell/sharp/issues/1619)
* Drop support for Node.js versions 6 and 11.
[#1674](https://github.com/lovell/sharp/issues/1674)
* Expose `skipBlanks` option for tile-based output.
[#1687](https://github.com/lovell/sharp/pull/1687)
[@RaboliotTheGrey](https://github.com/RaboliotTheGrey)
* Allow use of `failOnError` option with Stream-based input.
[#1691](https://github.com/lovell/sharp/issues/1691)
* Fix rotate/extract ordering for non-90 angles.
[#1755](https://github.com/lovell/sharp/pull/1755)
[@iovdin](https://github.com/iovdin)
## v0.22 - "*uptake*"
Requires libvips v8.7.4.
### v0.22.1 - 25<sup>th</sup> April 2019
* Add `modulate` operation for brightness, saturation and hue.
[#1601](https://github.com/lovell/sharp/pull/1601)
[@Goues](https://github.com/Goues)
* Improve help messaging should `require("sharp")` fail.
[#1638](https://github.com/lovell/sharp/pull/1638)
[@sidharthachatterjee](https://github.com/sidharthachatterjee)
* Add support for Node 12.
[#1668](https://github.com/lovell/sharp/issues/1668)
### v0.22.0 - 18<sup>th</sup> 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](https://github.com/lovell/sharp/issues/728)
* Add support for `pages` input option for multi-page input.
[#1566](https://github.com/lovell/sharp/issues/1566)
* Allow Stream-based input of raw pixel data.
[#1579](https://github.com/lovell/sharp/issues/1579)
* Add support for `page` input option to GIF and PDF.
[#1595](https://github.com/lovell/sharp/pull/1595)
[@ramiel](https://github.com/ramiel)
## v0.21 - "*teeth*"
Requires libvips v8.7.0.
### v0.21.3 - 19<sup>th</sup> 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](https://github.com/lovell/sharp/issues/1542)
### v0.21.2 - 13<sup>th</sup> January 2019
* Ensure all metadata is removed from PNG output unless `withMetadata` used.
* Ensure shortest edge is at least one pixel after resizing.
[#1003](https://github.com/lovell/sharp/issues/1003)
* Add `ensureAlpha` operation to add an alpha channel, if missing.
[#1153](https://github.com/lovell/sharp/issues/1153)
* Expose `pages` and `pageHeight` metadata for multi-page input images.
[#1205](https://github.com/lovell/sharp/issues/1205)
* Expose PNG output options requiring libimagequant.
[#1484](https://github.com/lovell/sharp/issues/1484)
* Expose underlying error message for invalid input.
[#1505](https://github.com/lovell/sharp/issues/1505)
* Prevent mutatation of options passed to `jpeg`.
[#1516](https://github.com/lovell/sharp/issues/1516)
* Ensure forced output format applied correctly when output chaining.
[#1528](https://github.com/lovell/sharp/issues/1528)
### v0.21.1 - 7<sup>th</sup> December 2018
* Install: support `sharp_dist_base_url` npm config, like existing `SHARP_DIST_BASE_URL`.
[#1422](https://github.com/lovell/sharp/pull/1422)
[@SethWen](https://github.com/SethWen)
* Ensure `channel` metadata is correct for raw, greyscale output.
[#1425](https://github.com/lovell/sharp/issues/1425)
* Add support for the "mitchell" kernel for image reductions.
[#1438](https://github.com/lovell/sharp/pull/1438)
[@Daiz](https://github.com/Daiz)
* Allow separate parameters for gamma encoding and decoding.
[#1439](https://github.com/lovell/sharp/pull/1439)
[@Daiz](https://github.com/Daiz)
* Build prototype with `Object.assign` to allow minification.
[#1475](https://github.com/lovell/sharp/pull/1475)
[@jaubourg](https://github.com/jaubourg)
* Expose libvips' recombination matrix operation.
[#1477](https://github.com/lovell/sharp/pull/1477)
[@fromkeith](https://github.com/fromkeith)
* Expose libvips' pyramid/tile options for TIFF output.
[#1483](https://github.com/lovell/sharp/pull/1483)
[@mbklein](https://github.com/mbklein)
### v0.21.0 - 4<sup>th</sup> 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](https://github.com/lovell/sharp/issues/1135)
* Deprecate the `background` function.
Per-operation `background` options added to `resize`, `extend` and `flatten` operations.
[#1392](https://github.com/lovell/sharp/issues/1392)
* Add `size` to `metadata` response (Stream and Buffer input only).
[#695](https://github.com/lovell/sharp/issues/695)
* Switch from custom trim operation to `vips_find_trim`.
[#914](https://github.com/lovell/sharp/issues/914)
* Add `chromaSubsampling` and `isProgressive` properties to `metadata` response.
[#1186](https://github.com/lovell/sharp/issues/1186)
* Drop Node 4 support.
[#1212](https://github.com/lovell/sharp/issues/1212)
* Enable SIMD convolution by default.
[#1213](https://github.com/lovell/sharp/issues/1213)
* Add experimental prebuilt binaries for musl-based Linux.
[#1379](https://github.com/lovell/sharp/issues/1379)
* Add support for arbitrary rotation angle via vips_rotate.
[#1385](https://github.com/lovell/sharp/pull/1385)
[@freezy](https://github.com/freezy)
## v0.20 - "*prebuild*"
Requires libvips v8.6.1.
### v0.20.8 - 5<sup>th</sup> September 2018
* Avoid race conditions when creating directories during installation.
[#1358](https://github.com/lovell/sharp/pull/1358)
[@ajhool](https://github.com/ajhool)
* Accept floating point values for input density parameter.
[#1362](https://github.com/lovell/sharp/pull/1362)
[@aeirola](https://github.com/aeirola)
### v0.20.7 - 21<sup>st</sup> August 2018
* Use copy+unlink if rename operation fails during installation.
[#1345](https://github.com/lovell/sharp/issues/1345)
### v0.20.6 - 20<sup>th</sup> August 2018
* Add removeAlpha operation to remove alpha channel, if any.
[#1248](https://github.com/lovell/sharp/issues/1248)
* Expose mozjpeg quant_table flag.
[#1285](https://github.com/lovell/sharp/pull/1285)
[@rexxars](https://github.com/rexxars)
* Allow full WebP alphaQuality range of 0-100.
[#1290](https://github.com/lovell/sharp/pull/1290)
[@sylvaindumont](https://github.com/sylvaindumont)
* Cache libvips binaries to reduce re-install time.
[#1301](https://github.com/lovell/sharp/issues/1301)
* Ensure vendor platform mismatch throws error at install time.
[#1303](https://github.com/lovell/sharp/issues/1303)
* Improve install time error messages for FreeBSD users.
[#1310](https://github.com/lovell/sharp/issues/1310)
* Ensure extractChannel works with 16-bit images.
[#1330](https://github.com/lovell/sharp/issues/1330)
* Expose depth option for tile-based output.
[#1342](https://github.com/lovell/sharp/pull/1342)
[@alundavies](https://github.com/alundavies)
* Add experimental entropy field to stats response.
### v0.20.5 - 27<sup>th</sup> June 2018
* Expose libjpeg optimize_coding flag.
[#1265](https://github.com/lovell/sharp/pull/1265)
[@tomlokhorst](https://github.com/tomlokhorst)
### v0.20.4 - 20<sup>th</sup> June 2018
* Prevent possible rounding error when using shrink-on-load and 90/270 degree rotation.
[#1241](https://github.com/lovell/sharp/issues/1241)
[@anahit42](https://github.com/anahit42)
* Ensure extractChannel sets correct single-channel colour space interpretation.
[#1257](https://github.com/lovell/sharp/issues/1257)
[@jeremychone](https://github.com/jeremychone)
### v0.20.3 - 29<sup>th</sup> May 2018
* Fix tint operation by ensuring LAB interpretation and allowing negative values.
[#1235](https://github.com/lovell/sharp/issues/1235)
[@wezside](https://github.com/wezside)
### v0.20.2 - 28<sup>th</sup> April 2018
* Add tint operation to set image chroma.
[#825](https://github.com/lovell/sharp/pull/825)
[@rikh42](https://github.com/rikh42)
* Add environment variable to ignore globally-installed libvips.
[#1165](https://github.com/lovell/sharp/pull/1165)
[@oncletom](https://github.com/oncletom)
* Add support for page selection with multi-page input (GIF/TIFF).
[#1204](https://github.com/lovell/sharp/pull/1204)
[@woolite64](https://github.com/woolite64)
* Add support for Group4 (CCITTFAX4) compression with TIFF output.
[#1208](https://github.com/lovell/sharp/pull/1208)
[@woolite64](https://github.com/woolite64)
### v0.20.1 - 17<sup>th</sup> March 2018
* Improve installation experience when a globally-installed libvips below the minimum required version is found.
[#1148](https://github.com/lovell/sharp/issues/1148)
* Prevent smartcrop error when cumulative rounding is below target size.
[#1154](https://github.com/lovell/sharp/issues/1154)
[@ralrom](https://github.com/ralrom)
* Expose libvips' median filter operation.
[#1161](https://github.com/lovell/sharp/pull/1161)
[@BiancoA](https://github.com/BiancoA)
### v0.20.0 - 5<sup>th</sup> March 2018
* Add support for prebuilt sharp binaries on common platforms.
[#186](https://github.com/lovell/sharp/issues/186)
## v0.19 - "*suit*"
Requires libvips v8.6.1.
### v0.19.1 - 24<sup>th</sup> February 2018
* Expose libvips' linear transform feature.
[#1024](https://github.com/lovell/sharp/pull/1024)
[@3epnm](https://github.com/3epnm)
* Expose angle option for tile-based output.
[#1121](https://github.com/lovell/sharp/pull/1121)
[@BiancoA](https://github.com/BiancoA)
* Prevent crop operation when image already at or below target dimensions.
[#1134](https://github.com/lovell/sharp/issues/1134)
[@pieh](https://github.com/pieh)
### v0.19.0 - 11<sup>th</sup> January 2018
* Expose offset coordinates of strategy-based crop.
[#868](https://github.com/lovell/sharp/issues/868)
[@mirohristov-com](https://github.com/mirohristov-com)
* PNG output now defaults to adaptiveFiltering=false, compressionLevel=9
[#872](https://github.com/lovell/sharp/issues/872)
[@wmertens](https://github.com/wmertens)
* Add stats feature for pixel-derived image statistics.
[#915](https://github.com/lovell/sharp/pull/915)
[@rnanwani](https://github.com/rnanwani)
* Add failOnError option to fail-fast on bad input image data.
[#976](https://github.com/lovell/sharp/pull/976)
[@mceachen](https://github.com/mceachen)
* Resize: switch to libvips' implementation, make fastShrinkOnLoad optional, remove interpolator and centreSampling options.
[#977](https://github.com/lovell/sharp/pull/977)
[@jardakotesovec](https://github.com/jardakotesovec)
* Attach finish event listener to a clone only for Stream-based input.
[#995](https://github.com/lovell/sharp/issues/995)
[@whmountains](https://github.com/whmountains)
* Add tilecache before smartcrop to avoid over-computation of previous operations.
[#1028](https://github.com/lovell/sharp/issues/1028)
[@coffeebite](https://github.com/coffeebite)
* Prevent toFile extension taking precedence over requested format.
[#1037](https://github.com/lovell/sharp/issues/1037)
[@tomgallagher](https://github.com/tomgallagher)
* Add support for gravity option to existing embed feature.
[#1038](https://github.com/lovell/sharp/pull/1038)
[@AzureByte](https://github.com/AzureByte)
* Expose IPTC and XMP metadata when available.
[#1079](https://github.com/lovell/sharp/pull/1079)
[@oaleynik](https://github.com/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<sup>th</sup> September 2017
* Ensure input Buffer really is marked as Persistent, prevents mark-sweep GC.
[#950](https://github.com/lovell/sharp/issues/950)
[@lfdoherty](https://github.com/lfdoherty)
### v0.18.3 - 13<sup>th</sup> September 2017
* Skip shrink-on-load when trimming.
[#888](https://github.com/lovell/sharp/pull/888)
[@kleisauke](https://github.com/kleisauke)
* Migrate from got to simple-get for basic auth support.
[#945](https://github.com/lovell/sharp/pull/945)
[@pbomb](https://github.com/pbomb)
### v0.18.2 - 1<sup>st</sup> July 2017
* Expose libvips' xres and yres properties for TIFF output.
[#828](https://github.com/lovell/sharp/pull/828)
[@YvesBos](https://github.com/YvesBos)
* Ensure flip and flop operations work with auto-rotate.
[#837](https://github.com/lovell/sharp/issues/837)
[@rexxars](https://github.com/rexxars)
* Allow binary download URL override via SHARP_DIST_BASE_URL env variable.
[#841](https://github.com/lovell/sharp/issues/841)
* Add support for Solus Linux.
[#857](https://github.com/lovell/sharp/pull/857)
[@ekremkaraca](https://github.com/ekremkaraca)
### v0.18.1 - 30<sup>th</sup> May 2017
* Remove regression from #781 that could cause incorrect shrink calculation.
[#831](https://github.com/lovell/sharp/issues/831)
[@suprMax](https://github.com/suprMax)
### v0.18.0 - 30<sup>th</sup> 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](https://github.com/lovell/sharp/issues/176)
[@stephanebachelier](https://github.com/stephanebachelier)
* Avoid costly (un)premultiply when using overlayWith without alpha channel.
[#573](https://github.com/lovell/sharp/issues/573)
[@strarsis](https://github.com/strarsis)
* Include pixel depth (e.g. "uchar") when reading metadata.
[#577](https://github.com/lovell/sharp/issues/577)
[@moedusa](https://github.com/moedusa)
* Add support for Buffer and Stream-based TIFF output.
[#587](https://github.com/lovell/sharp/issues/587)
[@strarsis](https://github.com/strarsis)
* Expose warnings from libvips via NODE_DEBUG=sharp environment variable.
[#607](https://github.com/lovell/sharp/issues/607)
[@puzrin](https://github.com/puzrin)
* Switch to the libvips implementation of "attention" and "entropy" crop strategies.
[#727](https://github.com/lovell/sharp/issues/727)
* Improve performance and accuracy of nearest neighbour integral upsampling.
[#752](https://github.com/lovell/sharp/issues/752)
[@MrIbby](https://github.com/MrIbby)
* Constructor single argument API: allow plain object, reject null/undefined.
[#768](https://github.com/lovell/sharp/issues/768)
[@kub1x](https://github.com/kub1x)
* Ensure ARM64 pre-built binaries use correct C++11 ABI version.
[#772](https://github.com/lovell/sharp/issues/772)
[@ajiratech2](https://github.com/ajiratech2)
* Prevent aliasing by using dynamic values for shrink(-on-load).
[#781](https://github.com/lovell/sharp/issues/781)
[@kleisauke](https://github.com/kleisauke)
* Expose libvips' "squash" parameter to enable 1-bit TIFF output.
[#783](https://github.com/lovell/sharp/pull/783)
[@YvesBos](https://github.com/YvesBos)
* Add support for rotation using any multiple of +/-90 degrees.
[#791](https://github.com/lovell/sharp/pull/791)
[@ncoden](https://github.com/ncoden)
* Add "jpg" alias to toFormat as shortened form of "jpeg".
[#814](https://github.com/lovell/sharp/pull/814)
[@jingsam](https://github.com/jingsam)
## v0.17 - "*quill*"
Requires libvips v8.4.2.
### v0.17.3 - 1<sup>st</sup> April 2017
* Allow toBuffer to optionally resolve a Promise with both info and data.
[#143](https://github.com/lovell/sharp/issues/143)
[@salzhrani](https://github.com/salzhrani)
* Create blank image of given width, height, channels and background.
[#470](https://github.com/lovell/sharp/issues/470)
[@pjarts](https://github.com/pjarts)
* Add support for the "nearest" kernel for image reductions.
[#732](https://github.com/lovell/sharp/pull/732)
[@alice0meta](https://github.com/alice0meta)
* Add support for TIFF compression and predictor options.
[#738](https://github.com/lovell/sharp/pull/738)
[@kristojorg](https://github.com/kristojorg)
### v0.17.2 - 11<sup>th</sup> February 2017
* Ensure Readable side of Stream can start flowing after Writable side has finished.
[#671](https://github.com/lovell/sharp/issues/671)
[@danhaller](https://github.com/danhaller)
* Expose WebP alpha quality, lossless and near-lossless output options.
[#685](https://github.com/lovell/sharp/pull/685)
[@rnanwani](https://github.com/rnanwani)
### v0.17.1 - 15<sup>th</sup> January 2017
* Improve error messages for invalid parameters.
[@spikeon](https://github.com/spikeon)
[#644](https://github.com/lovell/sharp/pull/644)
* Simplify expression for finding vips-cpp libdir.
[#656](https://github.com/lovell/sharp/pull/656)
* Allow HTTPS-over-HTTP proxy when downloading pre-compiled dependencies.
[@wangzhiwei1888](https://github.com/wangzhiwei1888)
[#679](https://github.com/lovell/sharp/issues/679)
### v0.17.0 - 11<sup>th</sup> 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](https://github.com/lovell/sharp/issues/568)
* Ensure support for embedded base64 PNG and JPEG images within an SVG.
[#601](https://github.com/lovell/sharp/issues/601)
[@dynamite-ready](https://github.com/dynamite-ready)
* Ensure premultiply operation occurs before box filter shrink.
[#605](https://github.com/lovell/sharp/issues/605)
[@CmdrShepardsPie](https://github.com/CmdrShepardsPie)
[@teroparvinen](https://github.com/teroparvinen)
* Add support for PNG and WebP tile-based output formats (in addition to JPEG).
[#622](https://github.com/lovell/sharp/pull/622)
[@ppaskaris](https://github.com/ppaskaris)
* Allow use of extend with greyscale input.
[#623](https://github.com/lovell/sharp/pull/623)
[@ppaskaris](https://github.com/ppaskaris)
* Allow non-RGB input to embed/extend onto background with an alpha channel.
[#646](https://github.com/lovell/sharp/issues/646)
[@DaGaMs](https://github.com/DaGaMs)
## v0.16 - "*pencil*"
Requires libvips v8.3.3
### v0.16.2 - 22<sup>nd</sup> October 2016
* Restrict readelf usage to Linux only when detecting global libvips version.
[#602](https://github.com/lovell/sharp/issues/602)
[@caoko](https://github.com/caoko)
### v0.16.1 - 13<sup>th</sup> October 2016
* C++11 ABI version is now auto-detected, remove sharp-cxx11 installation flag.
* Add experimental 'attention' crop strategy.
[#295](https://github.com/lovell/sharp/issues/295)
* Include .node extension for Meteor's require() implementation.
[#537](https://github.com/lovell/sharp/issues/537)
[@isjackwild](https://github.com/isjackwild)
* Ensure convolution kernel scale is clamped to a minimum value of 1.
[#561](https://github.com/lovell/sharp/issues/561)
[@abagshaw](https://github.com/abagshaw)
* Correct calculation of y-axis placement when overlaying image at a fixed point.
[#566](https://github.com/lovell/sharp/issues/566)
[@Nateowami](https://github.com/Nateowami)
### v0.16.0 - 18<sup>th</sup> August 2016
* Add pre-compiled libvips for OS X, ARMv7 and ARMv8.
[#312](https://github.com/lovell/sharp/issues/312)
* Ensure boolean, bandbool, extractChannel ops occur before sRGB conversion.
[#504](https://github.com/lovell/sharp/pull/504)
[@mhirsch](https://github.com/mhirsch)
* Recalculate factors after WebP shrink-on-load to avoid round-to-zero errors.
[#508](https://github.com/lovell/sharp/issues/508)
[@asilvas](https://github.com/asilvas)
* Prevent boolean errors during extract operation.
[#511](https://github.com/lovell/sharp/pull/511)
[@mhirsch](https://github.com/mhirsch)
* Add joinChannel and toColourspace/toColorspace operations.
[#513](https://github.com/lovell/sharp/pull/513)
[@mhirsch](https://github.com/mhirsch)
* Add support for raw pixel data with boolean and withOverlay operations.
[#516](https://github.com/lovell/sharp/pull/516)
[@mhirsch](https://github.com/mhirsch)
* Prevent bandbool creating a single channel sRGB image.
[#519](https://github.com/lovell/sharp/pull/519)
[@mhirsch](https://github.com/mhirsch)
* Ensure ICC profiles are removed from PNG output unless withMetadata used.
[#521](https://github.com/lovell/sharp/issues/521)
[@ChrisPinewood](https://github.com/ChrisPinewood)
* Add alpha channels, if missing, to overlayWith images.
[#540](https://github.com/lovell/sharp/pull/540)
[@cmtt](https://github.com/cmtt)
* Remove deprecated interpolateWith method - use resize(w, h, { interpolator: ... })
[#310](https://github.com/lovell/sharp/issues/310)
## v0.15 - "*outfit*"
Requires libvips v8.3.1
### v0.15.1 - 12<sup>th</sup> July 2016
* Concat Stream-based input in single operation for ~+3% perf and less GC.
[#429](https://github.com/lovell/sharp/issues/429)
[@papandreou](https://github.com/papandreou)
* Add alpha channel, if required, before extend operation.
[#439](https://github.com/lovell/sharp/pull/439)
[@frulo](https://github.com/frulo)
* Allow overlay image to be repeated across entire image via tile option.
[#443](https://github.com/lovell/sharp/pull/443)
[@lemnisk8](https://github.com/lemnisk8)
* Add cutout option to overlayWith feature, applies only the alpha channel of the overlay image.
[#448](https://github.com/lovell/sharp/pull/448)
[@kleisauke](https://github.com/kleisauke)
* Ensure scaling factors are calculated independently to prevent rounding errors.
[#452](https://github.com/lovell/sharp/issues/452)
[@puzrin](https://github.com/puzrin)
* Add --sharp-cxx11 flag to compile with gcc's new C++11 ABI.
[#456](https://github.com/lovell/sharp/pull/456)
[@kapouer](https://github.com/kapouer)
* Add top/left offset support to overlayWith operation.
[#473](https://github.com/lovell/sharp/pull/473)
[@rnanwani](https://github.com/rnanwani)
* Add convolve operation for kernel-based convolution.
[#479](https://github.com/lovell/sharp/pull/479)
[@mhirsch](https://github.com/mhirsch)
* Add greyscale option to threshold operation for colourspace conversion control.
[#480](https://github.com/lovell/sharp/pull/480)
[@mhirsch](https://github.com/mhirsch)
* Ensure ICC profiles are licenced for distribution.
[#486](https://github.com/lovell/sharp/issues/486)
[@kapouer](https://github.com/kapouer)
* Allow images with an alpha channel to work with LAB-colourspace based sharpen.
[#490](https://github.com/lovell/sharp/issues/490)
[@jwagner](https://github.com/jwagner)
* Add trim operation to remove "boring" edges.
[#492](https://github.com/lovell/sharp/pull/492)
[@kleisauke](https://github.com/kleisauke)
* Add bandbool feature for channel-wise boolean operations.
[#496](https://github.com/lovell/sharp/pull/496)
[@mhirsch](https://github.com/mhirsch)
* Add extractChannel operation to extract a channel from an image.
[#497](https://github.com/lovell/sharp/pull/497)
[@mhirsch](https://github.com/mhirsch)
* Add ability to read and write native libvips .v files.
[#500](https://github.com/lovell/sharp/pull/500)
[@mhirsch](https://github.com/mhirsch)
* Add boolean feature for bitwise image operations.
[#501](https://github.com/lovell/sharp/pull/501)
[@mhirsch](https://github.com/mhirsch)
### v0.15.0 - 21<sup>st</sup> May 2016
* Use libvips' new Lanczos 3 kernel as default for image reduction.
Deprecate interpolateWith method, now provided as a resize option.
[#310](https://github.com/lovell/sharp/issues/310)
[@jcupitt](https://github.com/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](https://github.com/lovell/sharp/issues/369)
* Remove unnecessary (un)premultiply operations when not resizing/compositing.
[#413](https://github.com/lovell/sharp/issues/413)
[@jardakotesovec](https://github.com/jardakotesovec)
## v0.14 - "*needle*"
Requires libvips v8.2.3
### v0.14.1 - 16<sup>th</sup> April 2016
* Allow removal of limitation on input pixel count via limitInputPixels. Use with care.
[#250](https://github.com/lovell/sharp/issues/250)
[#316](https://github.com/lovell/sharp/pull/316)
[@anandthakker](https://github.com/anandthakker)
[@kentongray](https://github.com/kentongray)
* Use final output image for metadata passed to callback.
[#399](https://github.com/lovell/sharp/pull/399)
[@salzhrani](https://github.com/salzhrani)
* Add support for writing tiled images to a zip container.
[#402](https://github.com/lovell/sharp/pull/402)
[@felixbuenemann](https://github.com/felixbuenemann)
* Allow use of embed with 1 and 2 channel images.
[#411](https://github.com/lovell/sharp/issues/411)
[@janaz](https://github.com/janaz)
* Improve Electron compatibility by allowing node-gyp rebuilds without npm.
[#412](https://github.com/lovell/sharp/issues/412)
[@nouh](https://github.com/nouh)
### v0.14.0 - 2<sup>nd</sup> April 2016
* Add ability to extend (pad) the edges of an image.
[#128](https://github.com/lovell/sharp/issues/128)
[@blowsie](https://github.com/blowsie)
* Add support for Zoomify and Google tile layouts. Breaks existing tile API.
[#223](https://github.com/lovell/sharp/issues/223)
[@bdunnette](https://github.com/bdunnette)
* Improvements to overlayWith: differing sizes/formats, gravity, buffer input.
[#239](https://github.com/lovell/sharp/issues/239)
[@chrisriley](https://github.com/chrisriley)
* Add entropy-based crop strategy to remove least interesting edges.
[#295](https://github.com/lovell/sharp/issues/295)
[@rightaway](https://github.com/rightaway)
* Expose density metadata; set density of images from vector input.
[#338](https://github.com/lovell/sharp/issues/338)
[@lookfirst](https://github.com/lookfirst)
* Emit post-processing 'info' event for Stream output.
[#367](https://github.com/lovell/sharp/issues/367)
[@salzhrani](https://github.com/salzhrani)
* Ensure output image EXIF Orientation values are within 1-8 range.
[#385](https://github.com/lovell/sharp/pull/385)
[@jtobinisaniceguy](https://github.com/jtobinisaniceguy)
* Ensure ratios are not swapped when rotating 90/270 and ignoring aspect.
[#387](https://github.com/lovell/sharp/issues/387)
[@kleisauke](https://github.com/kleisauke)
* Remove deprecated style of calling extract API. Breaks calls using positional arguments.
[#276](https://github.com/lovell/sharp/issues/276)
## v0.13 - "*mind*"
Requires libvips v8.2.2
### v0.13.1 - 27<sup>th</sup> February 2016
* Fix embedding onto transparent backgrounds; regression introduced in v0.13.0.
[#366](https://github.com/lovell/sharp/issues/366)
[@diegocsandrim](https://github.com/diegocsandrim)
### v0.13.0 - 15<sup>th</sup> February 2016
* Improve vector image support by allowing control of density/DPI.
Switch pre-built libs from Imagemagick to Graphicsmagick.
[#110](https://github.com/lovell/sharp/issues/110)
[@bradisbell](https://github.com/bradisbell)
* Add support for raw, uncompressed pixel Buffer/Stream input.
[#220](https://github.com/lovell/sharp/issues/220)
[@mikemorris](https://github.com/mikemorris)
* Switch from libvips' C to C++ bindings, requires upgrade to v8.2.2.
[#299](https://github.com/lovell/sharp/issues/299)
* Control number of open files in libvips' cache; breaks existing `cache` behaviour.
[#315](https://github.com/lovell/sharp/issues/315)
[@impomezia](https://github.com/impomezia)
* Ensure 16-bit input images can be normalised and embedded onto transparent backgrounds.
[#339](https://github.com/lovell/sharp/issues/339)
[#340](https://github.com/lovell/sharp/issues/340)
[@janaz](https://github.com/janaz)
* Ensure selected format takes precedence over any unknown output filename extension.
[#344](https://github.com/lovell/sharp/issues/344)
[@ubaltaci](https://github.com/ubaltaci)
* Add support for libvips' PBM, PGM, PPM and FITS image format loaders.
[#347](https://github.com/lovell/sharp/issues/347)
[@oaleynik](https://github.com/oaleynik)
* Ensure default crop gravity is center/centre.
[#351](https://github.com/lovell/sharp/pull/351)
[@joelmukuthu](https://github.com/joelmukuthu)
* Improve support for musl libc systems e.g. Alpine Linux.
[#354](https://github.com/lovell/sharp/issues/354)
[#359](https://github.com/lovell/sharp/pull/359)
[@download13](https://github.com/download13)
[@wjordan](https://github.com/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<sup>th</sup> 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](https://github.com/lovell/sharp/issues/325)
[@janaz](https://github.com/janaz)
* Allow compilation with gmake to provide FreeBSD support.
[#326](https://github.com/lovell/sharp/issues/326)
[@c0decafe](https://github.com/c0decafe)
* Attempt to remove temporary file after installation.
[#331](https://github.com/lovell/sharp/issues/331)
[@dtoubelis](https://github.com/dtoubelis)
### v0.12.1 - 12<sup>th</sup> December 2015
* Allow use of SIMD vector instructions (via liborc) to be toggled on/off.
[#172](https://github.com/lovell/sharp/issues/172)
[@bkw](https://github.com/bkw)
[@puzrin](https://github.com/puzrin)
* Ensure embedded ICC profiles output with perceptual intent.
[#321](https://github.com/lovell/sharp/issues/321)
[@vlapo](https://github.com/vlapo)
* Use the NPM-configured HTTPS proxy, if any, for binary downloads.
### v0.12.0 - 23<sup>rd</sup> November 2015
* Bundle pre-compiled libvips and its dependencies for 64-bit Linux and Windows.
[#42](https://github.com/lovell/sharp/issues/42)
* Take advantage of libvips v8.1.0+ features.
[#152](https://github.com/lovell/sharp/issues/152)
* Add support for 64-bit Windows. Drop support for 32-bit Windows.
[#224](https://github.com/lovell/sharp/issues/224)
[@sabrehagen](https://github.com/sabrehagen)
* Switch default interpolator to bicubic.
[#289](https://github.com/lovell/sharp/issues/289)
[@mahnunchik](https://github.com/mahnunchik)
* Pre-extract rotatation should not swap width/height.
[#296](https://github.com/lovell/sharp/issues/296)
[@asilvas](https://github.com/asilvas)
* Ensure 16-bit+alpha input images are (un)premultiplied correctly.
[#301](https://github.com/lovell/sharp/issues/301)
[@izaakschroeder](https://github.com/izaakschroeder)
* Add `threshold` operation.
[#303](https://github.com/lovell/sharp/pull/303)
[@dacarley](https://github.com/dacarley)
* Add `negate` operation.
[#306](https://github.com/lovell/sharp/pull/306)
[@dacarley](https://github.com/dacarley)
* Support `options` Object with existing `extract` operation.
[#309](https://github.com/lovell/sharp/pull/309)
[@papandreou](https://github.com/papandreou)
## v0.11 - "*knife*"
### v0.11.4 - 5<sup>th</sup> November 2015
* Add corners, e.g. `northeast`, to existing `gravity` option.
[#291](https://github.com/lovell/sharp/pull/291)
[@brandonaaron](https://github.com/brandonaaron)
* Ensure correct auto-rotation for EXIF Orientation values 2 and 4.
[#288](https://github.com/lovell/sharp/pull/288)
[@brandonaaron](https://github.com/brandonaaron)
* Make static linking possible via `--runtime_link` install option.
[#287](https://github.com/lovell/sharp/pull/287)
[@vlapo](https://github.com/vlapo)
### v0.11.3 - 8<sup>th</sup> September 2015
* Intrepret blurSigma, sharpenFlat, and sharpenJagged as double precision.
[#263](https://github.com/lovell/sharp/pull/263)
[@chrisriley](https://github.com/chrisriley)
### v0.11.2 - 28<sup>th</sup> August 2015
* Allow crop gravity to be provided as a String.
[#255](https://github.com/lovell/sharp/pull/255)
[@papandreou](https://github.com/papandreou)
* Add support for io.js v3 and Node v4.
[#246](https://github.com/lovell/sharp/issues/246)
### v0.11.1 - 12<sup>th</sup> August 2015
* Silence MSVC warning: "C4530: C++ exception handler used, but unwind semantics are not enabled".
[#244](https://github.com/lovell/sharp/pull/244)
[@TheThing](https://github.com/TheThing)
* Suppress gamma correction for input image with alpha transparency.
[#249](https://github.com/lovell/sharp/issues/249)
[@compeak](https://github.com/compeak)
### v0.11.0 - 15<sup>th</sup> July 2015
* Allow alpha transparency compositing via new `overlayWith` method.
[#97](https://github.com/lovell/sharp/issues/97)
[@gasi](https://github.com/gasi)
* Expose raw ICC profile data as a Buffer when using `metadata`.
[#129](https://github.com/lovell/sharp/issues/129)
[@homerjam](https://github.com/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](https://github.com/lovell/sharp/issues/189)
[@h2non](https://github.com/h2non)
* Tighten constructor parameter checks.
[#221](https://github.com/lovell/sharp/issues/221)
[@mikemorris](https://github.com/mikemorris)
* Allow one input Stream to be shared with two or more output Streams via new `clone` method.
[#235](https://github.com/lovell/sharp/issues/235)
[@jaubourg](https://github.com/jaubourg)
* Use `round` instead of `floor` when auto-scaling dimensions to avoid floating-point rounding errors.
[#238](https://github.com/lovell/sharp/issues/238)
[@richardadjogah](https://github.com/richardadjogah)
## v0.10 - "*judgment*"
### v0.10.1 - 1<sup>st</sup> June 2015
* Allow embed of image with alpha transparency onto non-transparent background.
[#204](https://github.com/lovell/sharp/issues/204)
[@mikemliu](https://github.com/mikemliu)
* Include C standard library for `atoi` as Xcode 6.3 appears to no longer do this.
[#228](https://github.com/lovell/sharp/issues/228)
[@doggan](https://github.com/doggan)
### v0.10.0 - 23<sup>rd</sup> April 2015
* Add support for Windows (x86).
[#19](https://github.com/lovell/sharp/issues/19)
[@DullReferenceException](https://github.com/DullReferenceException)
[@itsananderson](https://github.com/itsananderson)
* Add support for Openslide input and DeepZoom output.
[#146](https://github.com/lovell/sharp/issues/146)
[@mvictoras](https://github.com/mvictoras)
* Allow arbitrary aspect ratios when resizing images via new `ignoreAspectRatio` method.
[#192](https://github.com/lovell/sharp/issues/192)
[@skedastik](https://github.com/skedastik)
* Enhance output image contrast by stretching its luminance to cover the full dynamic range via new `normalize` method.
[#194](https://github.com/lovell/sharp/issues/194)
[@bkw](https://github.com/bkw)
[@codingforce](https://github.com/codingforce)
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