2.2.8a has build fixes for 2.2.8.
The major changes between version 2.2.7 and 2.2.8 are
* Resolution of some build problems with gettext.
* The environment variable INDENT_PROFILE can be used to specify a profile file.
* Bug fixes.
The major changes between version 2.2.6 and 2.2.7 are
* Support for I18N (internationalisation) with gettext.
* Tarball directory restructuring.
* Bug fixes