What are ZIPs? 
Zcash Improvement Proposals (ZIPs) are the way to:
- propose new features for the Zcash cryptocurrency and their rationale,
- specify the implementation details of the feature,
- collect community input on the proposal, and
- document design decisions.
Contributing
The authors of a ZIP are responsible for building consensus within the community and documenting / addressing dissenting opinions.
Anyone can write a ZIP! We encourage community contributions and decentralization of work on the Zcash protocol. If you’d like to bounce ideas off people before formally writing a ZIP, we encourage it! Visit the ZcashCommunity Discord chat to talk about your idea.
Participation in the Zcash project is subject to a Code of Conduct.
The Zcash protocol is documented in its Protocol Specification.
To start contributing, first read ZIP 0 which documents the ZIP process. Then clone this repo from GitHub, and start adding your draft ZIP, formatted either as reStructuredText or as Markdown, into the zips/ directory.
For example, if using reStructuredText, use a filename matching zips/draft-*.rst. Use make to check that you are using correct reStructuredText or Markdown syntax, and double-check the generated rendered/draft-*.html file before filing a Pull Request. See here for the project dependencies.
NU7 Candidate ZIPs
The following ZIPs are under consideration for inclusion in NU7:
- ZIP 226: Transfer and Burn of Zcash Shielded Assets
- ZIP 227: Issuance of Zcash Shielded Assets
- ZIP 230: Version 6 Transaction Format
- ZIP 231: Memo Bundles
- ZIP 233: Network Sustainability Mechanism: Burning
- ZIP 234: Network Sustainability Mechanism: Issuance Smoothing
- ZIP 235: Network Sustainability Mechanism: Burn 60% of Transaction Fees
- ZIP 2002: Explicit Fees
- ZIP 2003: Disallow version 4 transactions
- ZIP 2004: Remove the dependency of consensus on note encryption
In addition, ZIP 317: Proportional Transfer Fee Mechanism may be updated.
This list is only provided here for easy reference; no decision has been made on whether to include each of these ZIPs.
ZIP 254: Deployment of the NU7 Network Upgrade will define which ZIPs are included in NU7.
License
Unless otherwise stated in this repository’s individual files, the contents of this repository are released under the terms of the MIT license. See COPYING for more information or see https://opensource.org/licenses/MIT .
Released ZIPs
Draft ZIPs
These are works-in-progress that have been assigned ZIP numbers. These will eventually become either Proposed (and thus Released), or one of Withdrawn, Rejected, or Obsolete.
In some cases a ZIP number is reserved by the ZIP Editors before a draft is written.
Drafts without assigned ZIP numbers
These are works-in-progress, and may never be assigned ZIP numbers if their ideas become obsoleted or abandoned. Do not assume that these drafts will exist in perpetuity; instead assume that they will either move to a numbered ZIP, or be deleted.