importantly quickly and trivially fixable. Every now and
then, a "feature release" is cut from the tip of this branch and
they typically are named with three dotted decimal digits. The
-last such release was 1.5.5 done on Apr 7th this year. You
+last such release was 1.5.6 done on Jun 18th this year. You
can expect that the tip of the "master" branch is always more
stable than any of the released versions.
after a feature release are applied to this branch and
maintenance releases are cut from it. The maintenance releases
are named with four dotted decimal, named after the feature
-release they are updates to; the last such release was 1.5.4.5.
+release they are updates to; the last such release was 1.5.5.4.
New features never go to this branch. This branch is also
merged into "master" to propagate the fixes forward.