I just noticed you have this on the 1st post
NOTE: Update in progress. XFX R9 290X benchmark done with new auto parameters from next release.
It has been a while since I checked the first post, has this released already happened or is it going to be a future release like 15.3.9 or 15.4
Thank you for continuing to support GCN2.
You can use 0.15.4 preview versions. Currently I'm working on rainforest there, but all other changes are included.