[release] Prepare for next development iteration

Change-Id: Ibd1bf22872b1a0d62ea2e19edbc5b0f005e85de5
Added base exceptions

Change-Id: I0d821d3416f8eaca56b9115f899ff7302bf156b0
[release] 4.2.1

Change-Id: I57ba9d26a71017d921d1243bd37be545c289bd0f