Hedera services sit on top of the Core node software and provide the functionalities that are accessed by users. These currently include the File Service, Consensus Service, Token Service, and Smart Contract Service. HIPs in the "Service" category are used to add to or improve the service-layer of Hedera. These types of features are implemented on Hedera consensus nodes.
Accepted ⓘ
Final ⓘ
| Number | Title | Author | Needs Council Approval |
Release |
|---|
| 583 |
Expand alias support in CryptoCreate & CryptoTransfer Transactions |
Nana Essilfie-Conduah, Richard Bair, Luke Lee |
Yes
|
v0.37.0 |
| 573 |
Blanket exemptions for custom fee collectors |
Michael Tinker |
Yes
|
v0.31.0 |
| 564 |
Zero unit token operations in smart contracts |
Matthew DeLorenzo, Vae Vecturne |
Yes
|
v0.31.0 |
| 542 |
Payer-sponsored auto-account creation with HTS assets |
Michael Tinker |
Yes
|
v0.31.0 |
| 514 |
Hedera Token Service Precompiled Contract Token Management Functions |
Nana Essilfie-Conduah |
Yes
|
v0.29.0 |
| 513 |
Smart Contract Traceability Extension |
Stoyan Panayotov, Mustafa Uzun, Steven Sheehy |
Yes
|
v0.36.0 |
| 475 |
Exchange rate system contract |
Michael Tinker |
Yes
|
v0.26.0 |
| 449 |
Record stream specification for expiring smart contracts |
Michael Tinker, Steven Sheehy |
Yes
|
v0.29.0 |
| 435 |
Record Stream V6 |
Stoyan Panayotov |
Yes
|
v0.28.0 |
| 376 |
Support Approve/Allowance/transferFrom standard calls from ERC20 and ERC721 |
Stoyan Panayotov |
Yes
|
v0.26.0 |
| 372 |
Entity Auto-Renewals and Expiry Window |
Leemon Baird, Nosh Mody, Quan Nguyen |
Yes
|
|
| 367 |
Unlimited Token Associations Per Account |
Anirudh Ghanta |
Yes
|
v0.25.0 |
| 358 |
Allow Token Create Through Hedera Token Service Precompiled Contract |
Stoyan Panayotov, Dimitar Dinev |
Yes
|
v0.25.0 |
| 351 |
Add UtilPrngTransaction |
Jaewook Kim, Leemon Baird |
Yes
|
v0.28.0 |
| 336 |
Approval and Allowance API for Tokens |
Albert Tam |
Yes
|
v0.25.0 |
| 329 |
Support CREATE2 opcode |
Michael Tinker |
Yes
|
v0.23.0 |
| 222 |
Support ECDSA(secp256k1) keys |
Michael Tinker |
Yes
|
v0.21.0 |
| 218 |
Smart Contract interactions with Hedera Token Accounts |
Danno Ferrin |
Yes
|
v0.24.0 |
| 206 |
Hedera Token Service Precompiled Contract for Hedera SmartContract Service |
Danno Ferrin |
Yes
|
v0.22.0 |
| 185 |
Smart Contract Service Gas Based Throttling |
Danno Ferrin |
Yes
|
v0.22.0 |
| 33 |
Add Network ID Field to Info Responses |
Simi Hunjan, David Matusevich, Leemon Baird, Mark Williamson, Alex Popowycz |
Yes
|
v0.22.0 |
| 32 |
Auto Account Creation |
Leemon Baird |
Yes
|
v0.21.0 |
| 31 |
Add Token Transfer Decimal Information |
Chris Campbell |
Yes
|
v0.22.0 |
| 26 |
Migrate Smart Contract Service EVM to Hyperledger Besu EVM |
Daniel Ivanov, Danno Ferrin |
Yes
|
v0.22.0 |
| 24 |
Pause feature on Hedera Token Service |
[email protected], [email protected], [email protected] |
Yes
|
v0.19.0 |
| 23 |
Make the need for token association opt-in |
Gerbert Vandenberghe |
Yes
|
v0.19.0 |
| 18 |
Custom Hedera Token Service Fees |
Cooper Kunz, Rahul Kothari |
Yes
|
v0.16.0 |
| 17 |
Non-Fungible Tokens |
Daniel Ivanov |
Yes
|
v0.17.2 |
| 16 |
Entity Auto-Renewal |
Leemon Baird, Nosh Mody, Quan Nguyen |
Yes
|
|
Replaced ⓘ