![block7.jpg__740x380_q85_crop_subsampling-2.jpg](https://cdn.steemitimages.com/DQmV5SBMC8eUuwsK4iqCXoEwitdkv9tvA7PLPV2gSHWCHt5/block7.jpg__740x380_q85_crop_subsampling-2.jpg)mgsc The ZCesh network aims to privatize transactions between shielded accounts. ZCesh uses zero knowledge proofs known as zk snarks, which allow for secure transactions between two parties  whilst providing a mathematical proof that this transaction exists and is verifiable.  At block 347,500, the  Overwinter  upgrade will go live and according to ZCash, users will have three months to upgrade their ZCash software. The main features of the update are improvements in replay protection, higher speed of transfers and masking of version numbers