Reverse chronological list of Octave releases.
All recent released versions going back to version 3.4.0 are tagged in the [http://hg.savannah.gnu.org/hgweb/octave hg archive] with a tag of the form release-MAJOR-MINOR-PATCH. So version 5.1.0 is tagged with "release-5-1-0". However, note that trying to build from an old tarball release isn't exactly the same thing as updating the hg archive to the corresponding hd id and trying to build from that. There are a number of generated files that are included in the tarball releases that are not stored in the hg
archvie. For old releases, using current tools to generate those files will likely result in some differences, unless you have installed the same old versions of tools like autoconf, bison, flex, gperf, etc. that were used to generate the old tarball release.
== 4.x and 5.x series ==