--- title: Six Labors : Beta-Six Labors. | daily.dev description: ImageSharp beta 6 is now on NuGet, bringing major performance improvements (resizer ~2.5x faster, 30% less memory during resizing, optimized pixel format... canonical: https://daily.dev/posts/six-labors-beta-six-labors--ykfzpd96c twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Six Labors : Beta-Six Labors. | daily.dev og:description: ImageSharp beta 6 is now on NuGet, bringing major performance improvements (resizer ~2.5x faster, 30% less memory during resizing, optimized pixel format... og:url: https://daily.dev/posts/six-labors-beta-six-labors--ykfzpd96c og:image: https://api.daily.dev/og/posts/yKFZpd96C.png og:image:alt: Six Labors : Beta-Six Labors. og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Six Labors : Beta-Six Labors. **[Six Labors : ImageSharp](https://daily.dev/sources/sixlabors)** · 5 min read · 0 upvotes · 0 comments ## Summary ImageSharp beta 6 is now on NuGet, bringing major performance improvements (resizer ~2.5x faster, 30% less memory during resizing, optimized pixel format pipeline, faster jpeg decoding and gif encoding), new features (14-colorspace conversion API, format-specific metadata APIs, new Gray8/Gray16 pixel formats, fluent affine/projective transform builders, expanded PNG and BMP subtype support), and expanded test coverage. A release candidate is planned before the end of Q1 2019. Notably, beta 6 will be the last release under the Apache License; starting with RC1, ImageSharp, ImageSharp.Drawing, and ImageSharp.Web will move to a dual AGPLv3/Commercial licensing model, with commercial subscription and perpetual license options planned, plus free licenses for non-profits and cheap licenses for indie developers. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Questions this post answers ### Is ImageSharp still free to use under the Apache License? Beta 6 is the last ImageSharp release distributed under the Apache License. Starting with release candidate 1, ImageSharp, ImageSharp.Drawing, and ImageSharp.Web switch to a dual AGPLv3/Commercial licensing model, with the AGPLv3 version including exceptions for bundling with common open source licenses like Apache 2.0 and MIT. _daily.dev helps developers track licensing changes before they affect a dependency they rely on._ ### How much faster is ImageSharp beta 6 at resizing images compared to earlier versions? ImageSharp beta 6 speeds up its resizer by roughly 2.5x compared to beta 5, and on .NET Core 2.1 it now downscales images faster than System.Drawing. It also reduces memory used during resizing by 30%, with further memory optimizations planned for the release candidate. _developers benchmarking image libraries can follow performance updates like this on daily.dev._ ### What commercial licensing options is SixLabors planning for ImageSharp? SixLabors plans two commercial license models for ImageSharp starting with the release candidate: a per-developer, per-year subscription with unlimited usage that converts to a perpetual license after three years, and a one-time payment for a perpetual license covering unlimited developers and usage. Free licenses are planned for non-profits and discounted licenses for indie developers. _daily.dev keeps teams evaluating dependency licensing costs informed as terms evolve._ ## Similar posts on daily.dev - [Six Labors : Security Support and License Enforcement](https://daily.dev/posts/six-labors-security-support-and-license-enforcement-xf9cl8fn2) · Six Labors : ImageSharp · 0 upvotes · 0 comments - [SkiaSharp 4.0 is here: announcing the first stable release](https://daily.dev/posts/skiasharp-4-0-is-here-announcing-the-first-stable-release-i6cab6h9v) · .NET Blog · 30 upvotes · 4 comments - [SkiaSharp 4.0 Establishes Milestone-Aligned Release Cadence](https://daily.dev/posts/skiasharp-4-0-establishes-milestone-aligned-release-cadence-cnqoznuu4) · InfoQ · 4 upvotes · 0 comments - [Announcing SkiaSharp 4.0](https://daily.dev/posts/announcing-skiasharp-4-0-1jg4xwdz1) · We Are .NET · 47 upvotes · 0 comments - [Explore What’s New in SkiaSharp 4.0](https://daily.dev/posts/explore-what-s-new-in-skiasharp-4-0-pbe3w4yhs) · Uno Platform · 17 upvotes · 1 comments --- Tags: [#performance](https://daily.dev/tags/performance), [#c#](https://daily.dev/tags/c#), [#image-processing](https://daily.dev/tags/image-processing), [#licensing](https://daily.dev/tags/licensing) [View this post on daily.dev](https://daily.dev/posts/six-labors-beta-six-labors--ykfzpd96c) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Six Labors : Beta-Six Labors.","url":"https://daily.dev/posts/six-labors-beta-six-labors--ykfzpd96c","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/six-labors-beta-six-labors--ykfzpd96c"},"datePublished":"2026-08-23T12:21:29.455Z","dateModified":"2026-08-23T12:54:09.780Z","description":"ImageSharp beta 6 is now on NuGet, bringing major performance improvements (resizer ~2.5x faster, 30% less memory during resizing, optimized pixel format...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ed93cf7072b44b9819d59ae82552406f?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/ed93cf7072b44b9819d59ae82552406f?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Six Labors : ImageSharp","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Six Labors : ImageSharp","logo":"https://media.daily.dev/image/upload/logos/placeholder.jpg","url":"https://daily.dev/sources/sixlabors"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/six-labors-beta-six-labors--ykfzpd96c","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"performance,c#,image-processing,licensing","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Six Labors : ImageSharp","item":"https://daily.dev/sources/sixlabors"},{"@type":"ListItem","position":3,"name":"Six Labors : Beta-Six Labors."}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/six-labors-beta-six-labors--ykfzpd96c#faq","mainEntity":[{"@type":"Question","name":"Is ImageSharp still free to use under the Apache License?","acceptedAnswer":{"@type":"Answer","text":"Beta 6 is the last ImageSharp release distributed under the Apache License. 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