Type     

Status     

Hiero Review     

Hedera Review     

Draft

Number Title Author Needs Hiero Review Needs Hedera Review

Last call

Number Title Author Needs Hiero Review Needs Hedera Review Review Period Ends
1028 Metadata management via SmartContracts Mustafa Uzun, Luke Lee Yes Yes Wed, 23 Apr 2025 07:00:00 +0000

Accepted

Number Title Author Needs Hiero Review Needs Hedera Review Release
1126 Delete Allowance without Token Association Michael Heinrichs Yes Yes
1084 Zero Cost EthereumTransaction on Success Nana Essilfie-Conduah, Richard Bair Yes Yes
1064 Daily Rewards For Active Nodes Neeharika Sompalli Yes Yes
1049 Deleted flag in ConsensusGetTopic Michael Heinrichs No No
1046 Adding support for gRPC-Web proxy endpoints to the Address Book Joseph Sinclair, Mark Blackman, Simi Hunjan Yes Yes
1037 Protocol Buffer API Specification Joseph Sinclair Yes Yes
1021 Improve Assignment of Auto-Renew Account ID for Topics Michael Kantor No Yes
980 Enhance mirror node entity rest APIs with timestamp query parameter Ivan Kavaldzhiev No Yes
945 Improvements to Hedera DID Method Keith Kowal No No
820 Integration of Wallet Connect 2.0 Protocol for Wallets and dApps on Hedera Jason Fabritz No No
796 Lockable Fractional Amounts of Fungible Tokens on Hedera Sam Wood, Stephanie Yi, Eleonora Odorizzi, Vicky Lio No Yes
775 Filter API in JSON-RPC Relay Georgi Lazarov No No
745 Optionally send transaction data without required transaction fields Greg Scullard No No
694 Real-time events in JSON-RPC Relay Ivo Yankov No No
679 Bucket restructuring for changing stream data folder structure Mugdha Goel No Yes
639 Errata records Michael Tinker No Yes
632 Hedera Account Service (HAS) System Contract Nana Essilfie-Conduah, Luke Lee No Yes
631 Account Virtual Addresses Nana Essilfie-Conduah No Yes
551 Batch transactions Piotr Swierzy No Yes
482 JSON-RPC Relay Mitchell Martin, Steven Sheehy No No
478 Interoperability Between Smart Contracts and HCS John Conway, Walter Hernandez, Mohsin Qamar, Michael Garber, Pathorn Tengkiattrakul No No
394 Add Expected Decimal Information to TokenMint, TokenBurn, and TokenWipeAccount Ryan Leckey No Yes
338 Signature and Wallet Providers Daniel Akhterov No No
323 C SDK Greg Scullard, Romain Menetrier No No
254 Swift SDK Soochul Yang No No
198 Ledger ID Leemon Baird No Yes
179 External Transaction Signing for SDK and other clients Danno Ferrin No No
173 Opt-in merged scheduling Michael Tinker, Anirudh Ghanta No Yes
30 CAIP Identifiers for the Hedera Network Danno Ferrin No No
27 DID improvements to offer a broader support and interoperability for the Hedera DID method Jo Vercammen No No
13 Hedera Name Service H. Bart No No
11 Layer-2 Smart Contract Network Bryce Doganer, Lucas Henning No No

Active

Number Title Author Needs Hiero Review Needs Hedera Review Release
920 NFT Music Metadata JSON Schema Brandon Davenport No No
766 NFT Collection Metadata JSON Schema Ashe Oro No No
412 NFT Token Metadata JSON Schema v2 May Chan No No
405 Fungible Token Metadata JSON Schema Paul Madsen, Cooper Kunz No No
213 Application Signs for End User Justin Atwell, Greg Scullard No No
1 Hiero Improvement Proposal Process Ken Anderson, Serg Metelin, Simi Hunjan, Michael Garber No No

Final

Number Title Author Needs Hiero Review Needs Hedera Review Release
1010 Update Token Custom Fee Schedules via Smart Contracts Stanimir Stoyanov No Yes v0.54.2
1008 Enhance Mirror Node Contract Log REST API with transaction hash query parameter Georgi Lazarov No Yes v0.110.2
993 Improve record stream legibility and extensibility Michael Tinker No Yes v0.53.0
991 Permissionless revenue-generating Topic Ids for Topic Operators Michael Kantor, Ty Smith No Yes 0.59.5
968 Enhance mirror node rest API to query by token name Simi Hunjan, Ali Nikan No Yes v0.110.2
906 Proxy Redirect Contract for Hbar Allowance and Approval Luke Lee, Michael Kantor No Yes v0.52.0
904 Frictionless Airdrops Richard Bair, Nana Essilfie-Conduah No Yes v0.56.0
874 Enhancing Topic Metadata Accessibility in the Hedera REST API Michael Kantor, Ty Smith No Yes v0.106.0
873 Adding Decimal Information to Token Balance Calls in the Hedera REST API Houdini NFT, Ty Smith No Yes v0.99.0
869 Dynamic Address Book - Stage 1 - HAPI Endpoints Iris Simon No Yes v0.56.0
868 Support Cancun Self-Destruct Semantics in Smart Contract Services Danno Ferrin No Yes 0.50.1
867 Add Smart Contract Services Support for KZG Point Evaluation Precompiled Function Danno Ferrin No Yes 0.50.1
866 Add EVM compatibility for non-supported Cancun blob features. Danno Ferrin No Yes 0.50.1
865 Add EVM Support for transient storage and memory copy Cancun opcodes Danno Ferrin No Yes 0.50.1
859 Add support for gasConsumed field in REST APIs related to contract results Ivan Kavaldzhiev, Stoyan Panayotov No Yes v0.100.0
857 NFT Allowances REST API Mugdha Goel No Yes v0.106.0
850 Enhancing Supply Key Functionality for NFT Updates in Treasury Account Patches No Yes 0.53.5
844 Handling and externalisation improvements for account nonce updates Stoyan Panayotov No Yes v0.47.0
830 Event Serialization With Round Number, EventDescriptors, and Multiple Other Parents. Edward Wertz No Yes v0.46.0
801 Add support for debug_traceTransaction RPC API Ivan Kavaldzhiev, Stoyan Panayotov No No v0.108.0
794 Sunsetting Balance File Michael Heinrichs No Yes v0.42.0
786 Enriched staking metadata exports Michael Tinker No Yes v0.43.0
782 Smoothing Staking Rewards Leemon Baird No Yes v0.40.0
765 NFT Collection Token Metadata Field Mike Abrams No Yes v0.49.0
756 Contract Scheduled Token Create Nana Essilfie-Conduah, Luke Lee No Yes v0.59.0
755 Schedule Service System Contract Nana Essilfie-Conduah No Yes v0.57.0
729 Contract Accounts Nonce Externalization Miroslav Gatsanoga No Yes v0.40.0
721 Add Software Version to Events Edward Wertz, Nick Poorman No Yes v0.39.0
719 Associate and Dissociate Tokens via Facade Contract Luke Lee No Yes v0.53.0
657 Mutable metadata fields for dynamic NFTs Patches Punks No Yes v0.49.0
646 Fungible Token Metadata Field May Chan No Yes v0.49.0
584 Mirror EVM Archive Node Ivan Kavaldzhiev, Mustafa Uzun No Yes v0.79.0
583 Expand alias support in CryptoCreate & CryptoTransfer Transactions Nana Essilfie-Conduah, Richard Bair, Luke Lee No Yes v0.37.0
573 Blanket exemptions for custom fee collectors Michael Tinker No Yes v0.31.0
564 Zero unit token operations in smart contracts Matthew DeLorenzo, Vae Vecturne No Yes v0.31.0
542 Payer-sponsored auto-account creation with HTS assets Michael Tinker No Yes v0.31.0
540 Change Or Remove Existing Keys From A Token Cooper Kunz, Justyn Spooner No Yes 0.50.1
514 Hedera Token Service Precompiled Contract Token Management Functions Nana Essilfie-Conduah No Yes v0.29.0
513 Smart Contract Traceability Extension Stoyan Panayotov, Mustafa Uzun, Steven Sheehy No Yes v0.36.0
475 Exchange rate system contract Michael Tinker No Yes v0.26.0
449 Record stream specification for expiring smart contracts Michael Tinker, Steven Sheehy No Yes v0.29.0
435 Record Stream V6 Stoyan Panayotov No Yes v0.28.0
423 Long Term Scheduled Transactions Patrick Staton No Yes v0.57.0
415 Introduction Of Blocks Daniel Ivanov, Ivan Kavaldzhiev, Steven Sheehy No Yes v0.26.0
410 Wrapping Ethereum Transaction Bytes in a Hedera Transaction Danno Ferrin No Yes v0.26.0
406 Staking Leemon Baird No Yes v0.27.0
376 Support Approve/Allowance/transferFrom standard calls from ERC20 and ERC721 Stoyan Panayotov No Yes v0.26.0
372 Entity Auto-Renewals and Expiry Window Leemon Baird, Nosh Mody, Quan Nguyen No Yes
367 Unlimited Token Associations Per Account Anirudh Ghanta No Yes v0.25.0
358 Allow Token Create Through Hedera Token Service Precompiled Contract Stoyan Panayotov, Dimitar Dinev No Yes v0.25.0
351 Add UtilPrngTransaction Jaewook Kim, Leemon Baird No Yes v0.28.0
336 Approval and Allowance API for Tokens Albert Tam No Yes v0.25.0
331 Mirror REST NFT info balance endpoint May Chan No Yes v0.52.0
329 Support CREATE2 opcode Michael Tinker No Yes v0.23.0
227 Mirror Node Search Contract Execution Log REST API Nana Essilfie-Conduah No Yes v0.47.0
226 Mirror Node Contract Execution Results REST API Nana Essilfie-Conduah No Yes v0.46.0
222 Support ECDSA(secp256k1) keys Michael Tinker No Yes v0.21.0
218 Smart Contract interactions with Hedera Token Accounts Danno Ferrin No Yes v0.24.0
206 Hedera Token Service Precompiled Contract for Hedera SmartContract Service Danno Ferrin No Yes v0.22.0
185 Smart Contract Service Gas Based Throttling Danno Ferrin No Yes v0.22.0
171 Add Message Sender's Account Id to Mirror Node API Response John Conway No Yes v0.49.0
33 Add Network ID Field to Info Responses Simi Hunjan, David Matusevich, Leemon Baird, Mark Williamson, Alex Popowycz No Yes v0.22.0
32 Auto Account Creation Leemon Baird No Yes v0.21.0
31 Add Token Transfer Decimal Information Chris Campbell No Yes v0.22.0
29 JavaScript DID SDK Daniel Norkin No No
28 Guardian Type Solution Matthew Smithies, Wes Geisenberger, Serg Metelin, Ken Anderson, Daniel Norkin, Prernaa Agarwal No No
26 Migrate Smart Contract Service EVM to Hyperledger Besu EVM Daniel Ivanov, Danno Ferrin No Yes v0.22.0
25 On-disk Virtual Merkle Tree Richard Bair, Jasper Potts No Yes
24 Pause feature on Hedera Token Service [email protected], [email protected], [email protected] No Yes v0.19.0
23 Make the need for token association opt-in Gerbert Vandenberghe No Yes v0.19.0
21 Free network info query Simi Hunjan No Yes v0.54.0
19 Decentralized Identifiers in Memo Fields Nick White, Jonathan Padilla, Atticus Francken, Steve Frenkel, Alex McComb, Daniel Norkin No No
18 Custom Hedera Token Service Fees Cooper Kunz, Rahul Kothari No Yes v0.16.0
17 Non-Fungible Tokens Daniel Ivanov No Yes v0.17.2
16 Entity Auto-Renewal Leemon Baird, Nosh Mody, Quan Nguyen No Yes
15 Address Checksum Leemon Baird No Yes

Review

Number Title Author Needs Hiero Review Needs Hedera Review Release
762 AnonCreds Verifiable Data Registry Sumabala Nair No No

Stagnant

Number Title Author Needs Hiero Review Needs Hedera Review Release
791 Hedera Name Protocol Taylor Nielson, Boston McClary No No
534 REGISTRY CONTRACT for naming structure Som Kirann([email protected]), Rahul Pandey([email protected]) No No
22 ZKP-based Selective Attribute Disclosure in the DID SDK Maurizio Binello, Tim McHale No No

Withdrawn

Number Title Author Needs Hiero Review Needs Hedera Review Release
777 Pending Token Transfers Nana Essilfie-Conduah No Yes
655 Token airdrops without explicit associations Nick Poorman No Yes

Rejected

Number Title Author Needs Hiero Review Needs Hedera Review Release
690 Identify Community Nodes in Address Book and Related API Kim Rader No Yes

Replaced

Number Title Author Needs Hiero Review Needs Hedera Review Release
260 Smart Contract Traceability Danno Ferrin No Yes
20 Standardized URI scheme to reference Hedera data Khoa Luong, Sam Wood, Stephanie Yi, Declan Fox No Yes
14 Token Hold Functionality Fernando Paris, Fernando Paris No Yes
10 Token Metadata JSON Schema Sam Wood, Susan Chan, Stephanie Yi, Khoa Luong No No