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Release v4.2.0 Notable changes =============== Switch to ed25519-zebra for consensus signature checks ------------------------------------------------------ This removes the zcashd dependency upon libsodium for ed25519 signature checks and instead uses the Rust implementation in ed25519-zebra, which has been active for signature verification since the Canopy upgrade. For more information on the conditions that led to this change see https://hdevalence.ca/blog/2020-10-04-its-25519am Update default fees according to ZIP-313 ---------------------------------------- Reduce default fees to 0.00001 ZEC as specified in ZIP-313 and ensure that transactions paying at least the new minimum fee meet the transaction relay threshold irrespective of transaction size. Improve getblocktemplate rpc performance when using shielded coinbase --------------------------------------------------------------------- This change precomputes future block templates to permit miners to begin working atop newly arrived blocks as quickly as possible, rather than waiting for a new template to be generated after a block has arrived. It also reduces the initial the wait time for incorporating new mempool transactions into a block from 1 minute to 10 seconds; the previous value was inherited from the upstream bitcoin codebase but is inappropriate for our block timing. Migrate from rpc-tests.sh to rpc-tests.py ----------------------------------------- This unifies and simplifies the RPC testing framework, as has been done in the upstream Bitcoin codebase. |
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README.md
Zcash 4.2.0
What is Zcash?
Zcash is an implementation of the "Zerocash" protocol. Based on Bitcoin's code, Zcash intends to offer a far higher standard of privacy through a sophisticated zero-knowledge proving scheme that preserves confidentiality of transaction metadata. More technical details are available in our Protocol Specification.
This software is the Zcash client. It downloads and stores the entire history of Zcash transactions; depending on the speed of your computer and network connection, the synchronization process could take a day or more once the blockchain has reached a significant size.
🔒 Security Warnings
See important security warnings on the Security Information page.
Zcash is experimental and a work in progress. Use it at your own risk.
📒 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.
Getting Started
Please see our user guide for joining the main Zcash network.
Need Help?
- 📘 See the documentation at the ReadTheDocs for help and more information.
- 📨 Ask for help on the Zcash forum.
- 💬 Chat with our support community on Discord
Participation in the Zcash project is subject to a Code of Conduct.
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 for detailed instructions.
License
For license information see the file COPYING.