Backwards Compatibility Question

[camerk]

I am an intern writing an implementation plan to add impersonation features to an existing EWS program. This existing program was writting using the 2.1 snapshot of EWS JAVA API. Have the patches since then been backwards combatible with code written for older snapshots of the API? This would mean old code written for EWS JAVA API v2.1, will still work with the latest build.

The team I am working with would like to upgrade, as long as it does not introduce new issues with the old code.

[pkropachev]

The current version is still 2.1-SNAPSHOT. So, this will depend on when you have started using version 2.1-SNAPSHOT.
Perhaps since you've started use this version some changes (fixing issues or implementation of new functionality) have been done.
In any case, such changes shouldn't break backward compatibility. From my point of view, backward compatibility is main goal of this API.