One Developer Keeps the 1989 Motif UI Toolkit Alive, Alone

Motif, the widget toolkit that defined how Unix applications looked and behaved through the 1990s, has an active maintainer again. Tim Hentenaar has been patching his own fork at github.com/thentenaar/motif since July 8, 2025, and has shipped five tagged releases, with v2.5.2 on April 17, 2026 the newest, according to an Aug. 24, 2026 writeup by Thom Holwerda on OSnews that resurfaced in a Lobsters discussion on Sept. 20.

Why the original project needed a fork

Motif's canonical home was a SourceForge project that, per Holwerda's reporting, had gone more than two years without activity by the time Hentenaar started his fork. None of the project's admins had been active for at least that long, its official bug tracker had disappeared, and its user forum closed in 2017. That left a toolkit still linked into working software with no one merging fixes upstream. In his own project description, Hentenaar writes that the fork "was born of a desire to keep Motif (and other X11 technologies) alive and well," and frames the effort as advocacy as much as maintenance: he says he intends to keep maintaining it "and in doing so advocate for the continued use of the user interface toolkit that defined an era, and influenced many of the user interfaces that came after it." The release history backs the maintenance half of that claim: v2.3.9 shipped July 25, 2025, followed by v2.4.0 on Dec. 28, 2025 and three more releases through the spring, v2.5.0 and v2.5.1 both on March 28, 2026 and v2.5.2 on April 17.

What the fork actually contains

Hentenaar's changes are not a rewrite. Per his own project description, the fork pulls in "fixes from upstream that have laid dormant for years," patches sourced from Gentoo's own packaging of Motif, and original fixes on top of both. The README lists specific additions: Unicode support for Motif's XmString text type, Xcursor support with SVG and PNG cursor loading, Xrandr and Xinerama multi-monitor support, transparent handling of the Xdnd drag-and-drop protocol, a Mesa-backed OpenGL drawing-area widget, and JPEG and PNG image support turned on by default rather than left as a compile-time option. Two build macros were also renamed for clarity, JPEG_SUPPORTED became XM_WITH_JPEG and PNG_SUPPORTED became XM_WITH_PNG. The repository carries the LGPL-2.1 license Motif adopted when the Open Group opened its source in 2012, and as of Sept. 21, 2026 has drawn 66 stars on GitHub, a small number next to major toolkits but a nonzero one for software most developers assumed was frozen. The fork's scope, per Hentenaar's own description, extends past Motif itself to the broader X11 stack the toolkit depends on, meaning fixes can touch libraries Motif applications call into as well as Motif's own widget code.

Who is still running Motif in 2026

Neither Hentenaar's repository nor Holwerda's OSnews piece names a current production user of Motif, and that absence is itself informative: the toolkit's audience today is almost certainly legacy Unix software still deployed somewhere, plus retrocomputing hobbyists running Common Desktop Environment setups for their own sake, rather than anyone shipping new Motif applications. That makes the fork's value less about enabling new development and more about ensuring existing Motif-linked binaries keep building against current compilers and X11 libraries as the rest of the Unix world moves on without them. The project's build system, autoconf and automake, is itself decades old, and its test suite depends on the Check library plus a running X server, so even verifying a patch requires a working X11 display rather than a headless CI runner alone.

Release	Date
v2.3.9	July 25, 2025
v2.4.0	Dec. 28, 2025
v2.5.0	March 28, 2026
v2.5.1	March 28, 2026
v2.5.2	April 17, 2026

Source: GitHub release history for thentenaar/motif, accessed Sept. 21, 2026.

Motif's revival fits a pattern this site has tracked in other corners of the Unix desktop world. GNOME 51 shipped Sept. 16 with passkey login and a dropped Nvidia driver path, showing that even actively corporate-backed desktop environments still carry old compatibility debt to shed, while Ubuntu 26.10 finished replacing its core utilities with Rust equivalents after a security audit turned up 70 CVEs in the C code the rewrite replaced. Motif's situation is the inverse of both: a toolkit with no corporate backer and no rewrite budget, kept alive by one person's spare time instead of an audit or a release cycle.