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.

Last Call

NumberTitleAuthorNeeds Council Approval Last Call Date Time
372 Entity Auto-Renewals and Expiry Window Leemon Baird, Nosh Mody, Quan Nguyen Yes Mon, 21 Mar 2022 07:00:00 +0000

Accepted

NumberTitleAuthorNeeds Council Approval
173 Opt-in merged scheduling Michael Tinker, Anirudh Ghanta Yes
185 Smart Contract Service Gas Based Throttling Danno Ferrin Yes
206 Hedera Token Service Precompiled Contract for Hedera SmartContract Service Danno Ferrin Yes
218 Smart Contract interactions with Hedera Token Accounts Danno Ferrin Yes
222 Support ECDSA(secp256k1) keys Michael Tinker Yes
260 Smart Contract Traceability Danno Ferrin Yes
31 Add Token Transfer Decimal Information Chris Campbell Yes
32 Auto Account Creation Leemon Baird Yes
329 Support CREATE2 opcode Michael Tinker Yes
33 Add Network ID Field to Info Responses Simi Hunjan, David Matusevich, Leemon Baird, Mark Williamson, Alex Popowycz Yes

Final

NumberTitleAuthorNeeds Council Approval
16 Entity Auto-Renewal Leemon Baird, Nosh Mody, Quan Nguyen Yes
17 Non-Fungible Tokens Daniel Ivanov Yes
18 Custom Hedera Token Service Fees Cooper Kunz, Rahul Kothari Yes
23 Make the need for token association opt-in Gerbert Vandenberghe Yes
24 Pause feature on Hedera Token Service chung@xfers.com, junhao@xfers.com, zhikai@xfers.com Yes
26 Migrate Smart Contract Service EVM to Hyperledger Besu EVM Daniel Ivanov, Danno Ferrin Yes

Replaced

NumberTitleAuthorNeeds Council Approval
14 Token Hold Functionality Fernando Paris, Fernando Paris Yes
20 Standardized URI scheme to reference Hedera data Khoa Luong, Sam Wood, Stephanie Yi, Declan Fox Yes