[release] Prepare for next development iteration

Change-Id: Ie1ab73a78f95afef7183f97e51a9758a7ebba1aa
Fixed bug: could not recover "subscription" from KMS event

Change-Id: I7315039bd4d53aa068c9eb2bbf7563a04f16687b
[release] 4.2.2

Change-Id: Ifdbff07b75d3997ee6be46a27c09f2ecdaa72773