haincode upgrade process</strong> In the previous chaincode
lifecycle, the upgrade transaction could be issued by a single organization,
creating a risk for a channel member that had not yet installed the new
chaincode. The new model allows for a chaincode to be upgraded only after
a sufficient number of organizations have approved the upgrade.</p></li>
<li><p><strong>Simpler endorsement policy and private data collection updates</strong>
Fabric lifecycle allows you to change an endorsement policy or privat