Difference between 4.6 and 5.1 couchbase


#1

We are using Couchbase 4.6 enterprise edition in our PAAS and now we have move it to 5.1 version.
Can you please suggest what is the major difference between 4.6 and 5.1 couchbase.


#2

https://developer.couchbase.com/documentation/server/5.0/introduction/whats-new.html
https://developer.couchbase.com/documentation/server/5.1/introduction/whats-new.html