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⇱ IceWM 4.0 Improves Alt-Tab Window Switcher, Alpha Blending + 32-bit RGBA Default - Phoronix

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IceWM 4.0 Improves Alt-Tab Window Switcher, Alpha Blending + 32-bit RGBA Default

Written by Michael Larabel in Desktop on 1 January 2026 at 09:02 AM EST. 10 Comments
For fans of the IceWM X11 window manager, the project kicked off 2026 by releasing IceWM 4.0.

IceWM 4.0 is primarily focused on improvements to its Alt+Tab window switcher, which can now handle larger number of application windows for both the vertical and horizontal modes.

In addition to enhancing the Alt+Tab window switcher, there are BSD fixes, alpha blending and 32-bit RGBA support is now the default, support for high resolution icons in WM_ICON_SIZE, standardization of icon sizes from 16 to 256 px, and a variety of other minor updates and fixes. Plus a variety of language translation updates.

👁 IceWM


IceWM 4.0 downloads and more details on this lightweight X11 window manager still going strong in 2026 can be found via GitHub.

Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.