In article <7f310$48bed46a$82a1d3bf$8521@news1.tudelft.nl>,
Patrick Vervoorn  <patrick.vervoorn@NOSPAM.perihelion.demon.nl> wrote:

During the install of that, I did notice a (very quick) notice flashing by 
which claimed something like 'migrating data to ....'. So it _looks_ like 
that BOINC 6.x installer does possibly include the moving/copying of the 
data to the new data-directory defined in the installer. However, I'm 
still flushing the caches on my primary machines, so I'll probably try 
another install with a few WUs left once I can do that... Taking no risks 
here. ;)

Update: I finally flushed the caches on my primary Q6600 machines. I then 
one-time enabled it to get more work, so it fetched 20 WU's.

I then quit BOINC, installed version 6.2.18, and noticed that same 'moving 
application data' messages.

After starting BOINC 6.2.18, I noticed it still had those 20 WU's, and was 
also still processing them with the optimzed App.

So... It seems no WUs are lost when upgrading from 5.x to 6.x.... I'll be 
upgrading my other machines during this weekend then...

Regards,

Patrick.