er</code>, and
<code>maint</code>. Your change will be placed into <code>pu</code> fairly early on by the maintainer
while it is still in the review process; from there, when it is ready for wider
testing, it will be merged into <code>next</code>. Plenty of early testers use <code>next</code> and
may report issues. Eventually, changes in <code>next</code> will make it to <code>master</code>,
which is typically considered stable. Finally, when a new release is cut,
<code>maint</code> is used to base bugfixes