# ZIP.tools — Zcash Improvement Proposals

Read proposals and drafts, follow their citations, and inspect network upgrades. Public reference access is free.

[Agent guide](https://zips.tools/docs) · [About](https://zips.tools/about) · [Contact](https://zips.tools/contact) · [Privacy](https://zips.tools/privacy)

Snapshot: a34cfc091434275120ff017c92c3b50d3cef623a

Source date: 2026-10-16T02:56:04+01:00

[Source revision](https://github.com/zcash/zips/commit/a34cfc091434275120ff017c92c3b50d3cef623a)

## Proposals

- [ZIP 0: ZIP Process](https://zips.tools/zip/0)
- [ZIP 1: Network Upgrade Policy and Scheduling](https://zips.tools/zip/1)
- [ZIP 2: Design Considerations for Network Upgrades](https://zips.tools/zip/2)
- [ZIP 32: Shielded Hierarchical Deterministic Wallets](https://zips.tools/zip/32)
- [ZIP 48: Transparent Multisig Wallets](https://zips.tools/zip/48)
- [ZIP 68: Relative lock-time using consensus-enforced sequence numbers](https://zips.tools/zip/68)
- [ZIP 76: Transaction Signature Validation before Overwinter](https://zips.tools/zip/76)
- [ZIP 112: CHECKSEQUENCEVERIFY](https://zips.tools/zip/112)
- [ZIP 113: Median Time Past as endpoint for lock-time calculations](https://zips.tools/zip/113)
- [ZIP 129: Zcash Transparent Multisig Setup](https://zips.tools/zip/129)
- [ZIP 143: Transaction Signature Validation for Overwinter](https://zips.tools/zip/143)
- [ZIP 155: addrv2 message](https://zips.tools/zip/155)
- [ZIP 173: Bech32 Format](https://zips.tools/zip/173)
- [ZIP 200: Network Upgrade Mechanism](https://zips.tools/zip/200)
- [ZIP 201: Network Peer Management for Overwinter](https://zips.tools/zip/201)
- [ZIP 202: Version 3 Transaction Format for Overwinter](https://zips.tools/zip/202)
- [ZIP 203: Transaction Expiry](https://zips.tools/zip/203)
- [ZIP 204: Zcash P2P Network Protocol](https://zips.tools/zip/204)
- [ZIP 205: Deployment of the Sapling Network Upgrade](https://zips.tools/zip/205)
- [ZIP 206: Deployment of the Blossom Network Upgrade](https://zips.tools/zip/206)
- [ZIP 207: Funding Streams](https://zips.tools/zip/207)
- [ZIP 208: Shorter Block Target Spacing](https://zips.tools/zip/208)
- [ZIP 209: Prohibit Out-of-Range Chain Value Pool Balances](https://zips.tools/zip/209)
- [ZIP 210: Sapling Anchor Deduplication within Transactions](https://zips.tools/zip/210)
- [ZIP 211: Disabling Addition of New Value to the Sprout Chain Value Pool](https://zips.tools/zip/211)
- [ZIP 212: Allow Recipient to Derive Ephemeral Secret from Note Plaintext](https://zips.tools/zip/212)
- [ZIP 213: Shielded Coinbase](https://zips.tools/zip/213)
- [ZIP 214: Consensus rules for a Zcash Development Fund](https://zips.tools/zip/214)
- [ZIP 215: Explicitly Defining and Modifying Ed25519 Validation Rules](https://zips.tools/zip/215)
- [ZIP 216: Require Canonical Jubjub Point Encodings](https://zips.tools/zip/216)
- [ZIP 217: Aggregate Signatures](https://zips.tools/zip/217)
- [ZIP 218: 25-second Block Target Spacing](https://zips.tools/zip/218)
- [ZIP 219: Disabling Addition of New Value to the Sapling Chain Value Pool](https://zips.tools/zip/219)
- [ZIP 220: Zcash Shielded Assets](https://zips.tools/zip/220)
- [ZIP 221: FlyClient - Consensus-Layer Changes](https://zips.tools/zip/221)
- [ZIP 222: Transparent Zcash Extensions](https://zips.tools/zip/222)
- [ZIP 224: Orchard Shielded Protocol](https://zips.tools/zip/224)
- [ZIP 225: Version 5 Transaction Format](https://zips.tools/zip/225)
- [ZIP 226: Transfer and Burn of Zcash Shielded Assets](https://zips.tools/zip/226)
- [ZIP 227: Issuance of Zcash Shielded Assets](https://zips.tools/zip/227)
- [ZIP 228: Asset Swaps for Zcash Shielded Assets](https://zips.tools/zip/228)
- [ZIP 229: Version 6 Transaction Format](https://zips.tools/zip/229)
- [ZIP 230: Withdrawn Version 6 Transaction Format](https://zips.tools/zip/230)
- [ZIP 231: Memo Bundles](https://zips.tools/zip/231)
- [ZIP 233: Network Sustainability Mechanism: Removing Funds From Circulation](https://zips.tools/zip/233)
- [ZIP 234: Network Sustainability Mechanism: Issuance Smoothing](https://zips.tools/zip/234)
- [ZIP 235: Remove 60% of Transaction Fees From Circulation](https://zips.tools/zip/235)
- [ZIP 236: Blocks should balance exactly](https://zips.tools/zip/236)
- [ZIP 237: Network Sustainability Mechanism: Halving-Preserving Issuance](https://zips.tools/zip/237)
- [ZIP 239: Relay of Version 5 Transactions](https://zips.tools/zip/239)
- [ZIP 240: Standard Transaction Rules](https://zips.tools/zip/240)
- [ZIP 243: Transaction Signature Validation for Sapling](https://zips.tools/zip/243)
- [ZIP 244: Transaction Identifier Non-Malleability](https://zips.tools/zip/244)
- [ZIP 245: Transaction Identifier Digests & Signature Validation for Transparent Zcash Extensions](https://zips.tools/zip/245)
- [ZIP 246: Digests for the Withdrawn Version 6 Transaction Format](https://zips.tools/zip/246)
- [ZIP 248: Extensible Transaction Format](https://zips.tools/zip/248)
- [ZIP 250: Deployment of the Heartwood Network Upgrade](https://zips.tools/zip/250)
- [ZIP 251: Deployment of the Canopy Network Upgrade](https://zips.tools/zip/251)
- [ZIP 252: Deployment of the NU5 Network Upgrade](https://zips.tools/zip/252)
- [ZIP 253: Deployment of the NU6 Network Upgrade](https://zips.tools/zip/253)
- [ZIP 254: Deployment of the NU7 Network Upgrade (Withdrawn)](https://zips.tools/zip/254)
- [ZIP 255: Deployment of the NU6.1 Network Upgrade](https://zips.tools/zip/255)
- [ZIP 256: Deployment of Consensus Bug Fixes Between NU6.1 and NU6.2](https://zips.tools/zip/256)
- [ZIP 257: Deployment of the Orchard Temporary Vulnerability Mitigation and NU6.2 Network Upgrade](https://zips.tools/zip/257)
- [ZIP 258: Deployment of the NU6.3 Network Upgrade](https://zips.tools/zip/258)
- [ZIP 259: Deployment of the NU7 Network Upgrade](https://zips.tools/zip/259)
- [ZIP 260: Extending Block Messages with Additional Authentication Data](https://zips.tools/zip/260)
- [ZIP 270: Key Rotation for Tracked Signing Keys](https://zips.tools/zip/270)
- [ZIP 271: Dev Fund Extension and One-Time Disbursement](https://zips.tools/zip/271)
- [ZIP 300: Cross-chain Atomic Transactions](https://zips.tools/zip/300)
- [ZIP 301: Zcash Stratum Protocol](https://zips.tools/zip/301)
- [ZIP 302: Standardized Memo Field Format](https://zips.tools/zip/302)
- [ZIP 303: Sprout Payment Disclosure](https://zips.tools/zip/303)
- [ZIP 304: Sapling Address Signatures](https://zips.tools/zip/304)
- [ZIP 305: Best Practices for Hardware Wallets supporting Sapling](https://zips.tools/zip/305)
- [ZIP 306: Security Considerations for Anchor Selection](https://zips.tools/zip/306)
- [ZIP 307: Light Client Protocol for Payment Detection](https://zips.tools/zip/307)
- [ZIP 308: Sprout to Sapling Migration](https://zips.tools/zip/308)
- [ZIP 309: Blind Off-chain Lightweight Transactions (BOLT)](https://zips.tools/zip/309)
- [ZIP 310: Security Properties of Sapling Viewing Keys](https://zips.tools/zip/310)
- [ZIP 311: Zcash Payment Disclosures](https://zips.tools/zip/311)
- [ZIP 312: FROST for Spend Authorization Multisignatures](https://zips.tools/zip/312)
- [ZIP 313: Reduce Conventional Transaction Fee to 1000 zatoshis](https://zips.tools/zip/313)
- [ZIP 314: Privacy upgrades to the Zcash light client protocol](https://zips.tools/zip/314)
- [ZIP 315: Best Practices for Wallet Implementations](https://zips.tools/zip/315)
- [ZIP 316: Unified Addresses and Unified Viewing Keys](https://zips.tools/zip/316)
- [ZIP 317: Proportional Transfer Fee Mechanism](https://zips.tools/zip/317)
- [ZIP 318: Orchard to Ironwood Migration](https://zips.tools/zip/318)
- [ZIP 319: Options for Shielded Pool Retirement](https://zips.tools/zip/319)
- [ZIP 320: Defining an Address Type to which funds can only be sent from Transparent Addresses](https://zips.tools/zip/320)
- [ZIP 321: Payment Request URIs](https://zips.tools/zip/321)
- [ZIP 322: Generic Signed Message Format](https://zips.tools/zip/322)
- [ZIP 323: Specification of getblocktemplate for Zcash](https://zips.tools/zip/323)
- [ZIP 324: URI-Encapsulated Payments](https://zips.tools/zip/324)
- [ZIP 325: Account Metadata Keys](https://zips.tools/zip/325)
- [ZIP 326: NU6.3 Consequences for Wallets](https://zips.tools/zip/326)
- [ZIP 332: Wallet Recovery from zcashd HD Seeds](https://zips.tools/zip/332)
- [ZIP 339: Wallet Recovery Words](https://zips.tools/zip/339)
- [ZIP 350: Bech32m](https://zips.tools/zip/350)
- [ZIP 374: Partially Created Zcash Transaction Format](https://zips.tools/zip/374)
- [ZIP 400: Wallet.dat format](https://zips.tools/zip/400)
- [ZIP 401: Addressing Mempool Denial-of-Service](https://zips.tools/zip/401)
- [ZIP 402: New Wallet Database Format](https://zips.tools/zip/402)
- [ZIP 403: Verification Behaviour of zcashd](https://zips.tools/zip/403)
- [ZIP 416: Spending Key Derivation in the `zcashd` wallet](https://zips.tools/zip/416)
- [ZIP 1001: Keep the Block Distribution as Initially Defined — 90% to Miners](https://zips.tools/zip/1001)
- [ZIP 1002: Opt-in Donation Feature](https://zips.tools/zip/1002)
- [ZIP 1003: 20% Split Evenly Between the ECC and the Zcash Foundation, and a Voting System Mandate](https://zips.tools/zip/1003)
- [ZIP 1004: Miner-Directed Dev Fund](https://zips.tools/zip/1004)
- [ZIP 1005: Zcash Community Funding System](https://zips.tools/zip/1005)
- [ZIP 1006: Development Fund of 10% to a 2-of-3 Multisig with Community-Involved Third Entity](https://zips.tools/zip/1006)
- [ZIP 1007: Enforce Development Fund Commitments with a Legal Charter](https://zips.tools/zip/1007)
- [ZIP 1008: Fund ECC for Two More Years](https://zips.tools/zip/1008)
- [ZIP 1009: Five-Entity Strategic Council](https://zips.tools/zip/1009)
- [ZIP 1010: Compromise Dev Fund Proposal With Diverse Funding Streams](https://zips.tools/zip/1010)
- [ZIP 1011: Decentralize the Dev Fee](https://zips.tools/zip/1011)
- [ZIP 1012: Dev Fund to ECC + ZF + Major Grants](https://zips.tools/zip/1012)
- [ZIP 1013: Keep It Simple, Zcashers: 10% to ECC, 10% to ZF](https://zips.tools/zip/1013)
- [ZIP 1014: Establishing a Dev Fund for ECC, ZF, and Major Grants](https://zips.tools/zip/1014)
- [ZIP 1015: Block Subsidy Allocation for Non-Direct Development Funding](https://zips.tools/zip/1015)
- [ZIP 1016: Community and Coinholder Funding Model](https://zips.tools/zip/1016)
- [ZIP 2001: Lockbox Funding Streams](https://zips.tools/zip/2001)
- [ZIP 2002: Explicit Fees](https://zips.tools/zip/2002)
- [ZIP 2003: Disallow version 4 transactions](https://zips.tools/zip/2003)
- [ZIP 2004: Remove the dependency of consensus on note encryption](https://zips.tools/zip/2004)
- [ZIP 2005: Ironwood Quantum Recoverability](https://zips.tools/zip/2005)
- [ZIP 2006: Restricting Transfers into the Orchard Pool](https://zips.tools/zip/2006)
- [ZIP 2007: Quantum Recoverability for a Subset of Transparent Addresses](https://zips.tools/zip/2007)
- [ZIP 2008: Update to `FS_FPF_ZCG_H3` address list](https://zips.tools/zip/2008)
- [ZIP 2009: Reduce Marginal Fee to 1000 Zatoshis and Raise the Weight Ratio Cap to 10](https://zips.tools/zip/2009)
- [Draft: Disabling Addition of New Value to the Transparent Chain Value Pool](https://zips.tools/draft/draft-arya-dairaemma-disable-addition-of-transparent-chain-value)
- [Draft: Version 2 Zcash P2P Network Protocol](https://zips.tools/draft/draft-arya-jvff-p2p-quic-transport)
- [Draft: Authenticated Reply Addresses](https://zips.tools/draft/draft-ecc-authenticated-reply-addrs)
- [Draft: On-chain Accountable Voting](https://zips.tools/draft/draft-ecc-onchain-accountable-voting)
- [Draft: Update to ZIP 1016 & ZIP 271: Key-Holder Organizations](https://zips.tools/draft/draft-mcgee-keyholders-organizations)
- [Draft: Air drops, Proof-of-Balance, and Stake-weighted Polling](https://zips.tools/draft/draft-str4d-orchard-balance-proof)