Can you recover data saved in NMM2.3 in NMM2.4?
Yes. NMM is backward compatible.
Also, any data that saved in 7.6.3 cannot be recovered in 8.1,that need to be aware of, that may require some precautions/workarounds/tweaks etc?
Data saved in 7.6 can be recovered in 8.1. NetWorker is backward compatible.
More info, you can read NetWorker 8.1 Release Notes and NetWorker Module for Microsoft Applications 2.4 SP1 Release Notes
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