Cardano DB Sync 3.1.0

This minor release adds incremental additional functionality to support the GraphQL component, wallet implementations based on the DB Sync, and to cover more parts of the Shelley chain data.

This release requires the database to be dropped and recreated.

Compatible with Cardano Node 1.18.0.

Deployed on the mainnet 28 July 2020.

Added

• payment_cred column to the tx_out table for the benefit of wallet implementations (#208)
• slot_in_epoch column to the block table. Slot numbers become more complicated to calculate once there are multiple eras with different slot lengths, so we now store it instead (#214)
• Support for storing the on-chain parameter update proposals (#217)

Improved

• MIR certs now go into their own table(s) rather than the reward table (#218)

Documentation

Cardano DB Sync Overview
Building and Running the Cardano DB Sync Node
Schema Management
Validation
The Plug-in System

Platforms

• Linux 64-bit
• Docker

Sign off

Role	Approval
Technical Lead	✔️
QA Engineer	✔️
Ops	✔️
Release Manager	✔️