XQuartz 2.6.1_beta1 is ready for download. This is primarily a maintenance release aimed at picking up a handful of bug fixes and addressing some regressions (like the hotplugging displays issues). One important thing to note is the addition of libpng-1.5.1. With this release, I've removed the libpng-1.2 and libpng-1.4 SDKs (but the libs are still present so as to not break existing applications). libpng-1.5.1 has removed API from libpng that had been deprecated for years. There may be a few applications that need to be updated to build with the new version. If this is a huge problem, I can go back to providing both SDKs, so please be vocal if you have problems. As always, grab the update by checking for updates in XQuartz or directly from this link: http://xquartz.macosforge.org/downloads/SL/XQuartz-2.6.1_beta1.dmg Thanks, Jeremy