I finished ensuring iceberg will work on 64 bits.
Now, I needed to make some fixes for UFFI, which I put in Case 20198 (it is imperative to include this to be able to backport 0.5 into Pharo 6.0). Also, I will need to promote a new VM as stable.
I'm not sure I want to backport this into Pharo 6. I know I promised but complications are... more than benefits, I think: You will need a new VM. People will not know that and they will download a P6 image with the older VM and this will cause problems.
Maybe is better to move all this to P7?