Paint.NET 5.2 has been available since November 10, 2026. The developer calls the version a comprehensive update: the image editor for Windows gets eight new effects, a newly written renderer for layers, and a new system for file format plug-ins. According to the announcement, much of this prepares the way for version 6.0.
Three changes stand out in everyday use. HDR files open without blown-out colors. Documents with many layers are calculated more accurately. According to the developer, copying to the clipboard is up to 95 percent faster. There is also a new hardware hurdle: on Intel and AMD processors, the program now requires the processor extension SSE4.2.
What changes when opening and calculating?
When opening, Paint.NET 5.2 converts HDR images into the normal brightness range (SDR) using tone mapping. This applies to AVIF, HEIC, JPEG XL, JPEG XR, and PNG. Earlier versions clipped all values above 1.0, so colors usually appeared blown out.
Paint.NET 5.2 in numbers
Developer information on the version from November 10, 2026
- 8new effects in four menus
- 32 bitfloating point per channel in the new layer renderer
- 95 %faster copying to the clipboard, up to
- 50 %less temporary memory when pasting as a new image
The percentages come from the developer; TutKit did not measure the values.
Source: Paint.NET Blog
The second major change concerns layers. The old renderer calculated with 8-bit integers per channel. With many layers, rounding errors add up to wrong colors or banding, as the announcement explains. The new renderer works with 32-bit floating point per channel (FP32) and uses the processor instruction sets AVX2, AVX512, and ARM64 NEON.
FP32 requires significantly more memory bandwidth. According to the developer, optimizations compensate for this, so there is no noticeable slowdown. Processors with AVX512, such as AMD Zen 5, benefit the most. Our assessment: you are most likely to notice the difference with smooth gradients, because rounding errors show up there as stripes.
The eight new effects are spread across four menus:
- Artistic: Linocut, Mosaic, Pointilism, and Stained Glass
- Color: Ordered Dither with Bayer, spiral, and noise patterns
- Distort: Spherize with a true spherical shape and Waves for waves, rings, and spirals
- Stylize: Halftone as a print screen made of CMYK or black-and-white dots
The Move Pixels tool has the mode "Nearest Neighbor (Antialiased)": if an image is to grow to 632 percent, it first scales to 700 percent and then bilinearly back down to 632. Pixel art thus keeps its hard blocks but gets smoothed edges. In addition, PNG text information is preserved, including the prompt data of images from Stable Diffusion.
"Copy Merged" (now "Copy Flattened"), the tool "Move Selected Pixels" (now "Move Pixels"), and the dialog "Save Configuration" (now "Save Options") have been renamed. Guides using the old names will therefore lead you nowhere. The announcement does not mention German menu names.
What changes for plug-ins and system requirements?
In addition to SSE4.2, version 5.2 now requires .NET 11. The plug-in system for file formats supports many pixel formats, including RGBA64, CMYK, and HDR formats such as RGBA FP16. The bundled plug-ins for AVIF, DDS, JPEG XL, and WebP already run on it.
Classic effect plug-ins are considered deprecated. According to the developer, existing ones continue to work, but new ones can no longer be compiled. Classic file format plug-ins can still be compiled but produce a warning that will become an error in the next major update. Version 6.0 is supposed to bring a new PDN file format; the announcement does not name a date.
What this means for you
Before updating, check your processor's technical specifications to see whether it supports SSE4.2. Also test an HDR file on a copy: the conversion to SDR happens on loading, but the announcement does not say whether the saved file retains HDR information.
If you use plug-ins, check whether the author offers a version for the new system. Also make a note of the new menu names.
According to the developer, the Classic desktop version will offer the update by itself in the next few days. You can get the update immediately in the settings under Updates with "Check Now". The Store version updates automatically as soon as Microsoft releases the update, usually within a day. The announcement does not state a price.
The developer announced Paint.NET 5.2 on November 10, 2026.
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