zcash

Zcash 6.20.0 =========== > ## ⚠️ `zcashd` has reached its End of Life > > `zcashd` reached its final End-of-Support halt on July 18th 2026 at block > height 3417100, and every unmodified `zcashd` 6.20.0 node shut down at that > height. > > The `zcashd` node software is succeeded by the [Zebra](https://github.com/ZcashFoundation/zebra) > and [Zakura](https://zakura.com/) consensus node implementations, along with the > [Zallet](https://zcash.github.io/zallet/) full node wallet. Users of the `zcashd` > node and wallet implementation should migrate to these alternatives. > > See the [End of Life](https://zcash.github.io/zcash/user/end-of-life.html) > page for the full timeline of the zcashd wind-down and migration guidance. What is Zcash? -------------- [Zcash](https://z.cash/) is HTTPS for money. Initially based on Bitcoin's design, Zcash has been developed from the Zerocash protocol to offer a far higher standard of privacy and anonymity. It uses a sophisticated zero-knowledge proving scheme to preserve confidentiality and hide the connections between shielded transactions. More technical details are available in our [Protocol Specification](https://zips.z.cash/protocol/protocol.pdf). ## The `zcashd` Full Node This repository was the home of the original `zcashd` software, a Zcash consensus node implementation.

The `zcashd` code was derived from a source fork of [Bitcoin Core](https://github.com/bitcoin/bitcoin). The code was forked initially from Bitcoin Core v0.11.2, and the two codebases diverged substantially. #### :lock: Security Warnings See important security warnings on the [Security Information page](https://z.cash/support/security/). **Zcash is experimental and a work in progress.** Use it at your own risk. #### :ledger: Deprecation Policy This release is considered deprecated 16 weeks after the release day. There is an automatic deprecation shutdown feature which will halt the node some time after this 16-week period. The automatic feature is based on block height. ## Other Zcash Implementations The [Zebra](https://github.com/ZcashFoundation/zebra) project offers a different Zcash consensus node implementation, written largely from the ground up. ## Getting Started Please see our [user guide](https://zcash.readthedocs.io/en/latest/rtd_pages/rtd_docs/user_guide.html) for instructions on joining the main Zcash network. ### Need Help? * :blue_book: See the documentation at the [ReadTheDocs](https://zcash.readthedocs.io) for help and more information. * :incoming_envelope: Ask for help on the [Zcash forum](https://forum.zcashcommunity.com/). * :speech_balloon: Join our community on the [Zcash Global Discord](https://discord.com/invite/zcash). * ‍: Learn at [ZecHub](https://zechub.wiki/) Participation in the Zcash project is subject to a [Code of Conduct](code_of_conduct.md). ### Building Build Zcash along with most dependencies from source by running the following command: ``` ./zcutil/build.sh -j$(nproc) ``` Currently, Zcash is only officially supported on Debian and Ubuntu. See the [Debian / Ubuntu build page](https://zcash.readthedocs.io/en/latest/rtd_pages/Debian-Ubuntu-build.html) for detailed instructions. License ------- For license information see the file [COPYING](COPYING).