If you use our xulrunner builds, you know we provide builds for xulrunner on the 1.9.0, 1.9.1, 1.9.2, mozilla-central and lorentz branches. Almost all of these xulrunner builds are produced through the same pool-of-slaves that are used for Firefox – except for the oldest xulrunner1.9.0 which are still being produced the old way – on dedicated unique machines.

This blog post, as well as mfinkle’s blog post here, the dev.platform newsgroup posting here and the discussion in the Platform meeting on 27jan2010, are to let people know we’re planning to stop xulrunner builds and releases on the 1.9.0.x branch. This would only affect Mozilla building and releasing xulrunner 1.9.0.x. Mozilla will continue to build and release xulrunner from the 1.9.1, 1.9.2, mozilla-central and lorentz branches. Obviously, the source code to xulrunner 1.9.0.x would remain available and developers could always build and release their own xulrunner 1.9.0 packages from the source code if they wish.

While considering this, we realized that we don’t know how many people are using which branch of xulrunner; further, we have no idea if people are using pre-built xulrunner or building their own. If you are using xulrunner1.9.0, please let us know in the newsgroups if this will impact you either way. Meanwhile, unless there are objections, we’ll continue preparations to stop xulrunner 1.9.0 builds in bug#544678.