Hi, we have Letux-4.14 available:
http://projects.goldelico.com/p/gta04-kernel/
It mainly fixes the "OpenPandora blues" issue. And I have reset all DEBUG defconfigs that did creep into the letux_defconfigs over the years.
The result is a much smaller set of binary modules and that the devices boot a little faster (not much, but ca. 10-20%).
There is a new script in Letux/scripts/debug which allows to add useful DEBUG configs before compiling or remove them again.
Otherwise there haven't been many other fixes and improvements so that we still have a lot of open issues:
http://projects.goldelico.com/p/gta04-kernel/issues/
Some are even regressions. For example, Pandora WiFi did work a while ago and the OMAP5 screen rotation by TILER is now completely broken because the patches can't be rebased to latest linus/master any more. Other known topics (e.g. automatic µSD/eMMC-switch for the Pyra) are also waiting for being written...
Maybe someone finds more time to contribute than me.
BR, Nikolaus