This question already has an answer here:

Based on the release note https://bitcoincore.org/en/2016/02/23/release-0.12.0/. Users will be able to run a full node while only storing around 2GB of data.

What should I do to enable this feature to reduce storage consumption of my wallet?

merged by Murch Aug 26 '16 at 16:05

This question was merged with How can I run bitcoind in pruning mode? because it is an exact duplicate of that question.