12-20-2011
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Join Date: Jul 2011
Last Activity: 11 September 2018, 9:15 AM EDT
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The major difference as I understand it :
Going from u6 to say u10, you have 3 choices:
a) rebuild with u10, I.e fresh install
b) liveupgrade
c) patch to alternate root, which is kind of what LU does.
The patch cluster install you did is simple, you just install on top of your existing u6. Its mostly a collection of security patches and bug fixes.