What is ZCash?
In simple terminology, if you consider Bitcoin to be HTTP, ZCash is HTTPS. This clearly indicates that ZCash is an extra layer for privacy. This also makes it much more secure. Moreover, it makes it difficult for the hackers or for anyone else to know about the origin of the transaction.
There is 0 knowledge proof involved in ZCash. As a result, it is not easy to find the origin of the transaction or the parties which are involved in the transaction.
Overwinter is the name of the ZCash hard fork which is coming by. It will be a network upgrade for the cryptocurrency. The entire network will have a period of 90 days in order to update the software after the launch of the fork. Also, it is up to the users to find out whether the cryptocurrency exchange in which they are holding ZCash will support the new protocol or not. It was announced on May 2nd and it is slated to be launched somewhere in June. It is slated to reach the market probably on June 25. In July as well, there will be another update by the name of the sapling. However, this will not be a hard fork.
Owing to the recent developments, the popularity of ZCash is also increasing. It remains to be seen how it appears after the hard fork.