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Welcome to the Cardano Playground Repository

Cardano is a decentralized third-generation proof-of-stake blockchain platform and home to the ada cryptocurrency. It is the first blockchain platform to evolve out of a scientific philosophy and a research-first driven approach.

Things you'll find here:

Documentation

Use the nagivation panel on the left to explore The Cardano Book.

Environments

The official Cardano Environment configuration files.

Environment description and configuration files available are:

Environment: Sanchonet Testnet

Usage: Testing Conway era functionality.

The Sanchonet chain will be rolled back with each new node release for testing new features and fixes. When respun the chain will be restored from slot 12009585. Any Sanchonet chain participants, stakepools, integrators, etc, will need to clear their chain state to re-sync from that point forward when the chain is respun.

Epoch length of 1 day. Development flags allowed in configuration files.

Upgrade Strategy: Deploy all nodes with every upgrade request

Responsible: IOG SRE

Accountable: SRE Director

Consulted: Core Tech Head of Product

Informed: Cardano Core Tribe

Configuration files

Compatible with cardano-node pre-release 8.7.1-pre

Environment: Preview Testnet

Usage: Testing release candidates and mainnet releases. Leads mainnet hard forks by at least 4 weeks.

Ideally stays long running. Only if an issue is found after it forks that's breaking should it be respun.

Epoch length of 1 day. Development flags allowed in configuration files.

Upgrade Strategy:

  • Release Candidates - 1/3 of nodes
  • Official Releases - 2/3 of nodes
  • Hard forks - all nodes
  • Community requested to only deploy release candidates and official releases

Changes Requested by: Release Squad Lead

Approvals Required: SRE Tribe Lead, Cardano Head of Engineering, Cardano Head of Architecture

Responsible: IOG SRE

Accountable: Head of SRE/Release Squad Lead

Consulted: SPOs

Informed: Cardano Core Tribe, COO, Director of Engineering

Configuration files

Compatible with cardano-node release 8.1.2

Environment: Pre-Production Testnet

Usage: Testing release candidates and mainnet releases. Forks at approximately same time as mainnet (within an epoch of each other).

Long running. Since this parallels mainnet, if a bug occurs here, it needs fixed properly and can not be respun.

Upgrade Strategy:

  • Release Candidates - 1/3 of nodes
  • Official Releases - 2/3 of nodes
  • Hard forks - all nodes
  • Community requested to only deploy release candidates and official releases

Changes Requested by: Release Squad Lead

Approvals Required: SRE Tribe Lead, Cardano Head of Engineering, Cardano Head of Architecture, CF Representative

Responsible: IOG SRE

Accountable: Head of SRE/Release Squad Lead

Consulted: SPOs, IOG Tribes

Informed: Cardano Core Tribe, COO, Director of Engineering, VP Community

Configuration files

Compatible with cardano-node release 8.1.2

Environment: Production (Mainnet)

Usage: Live Production. Only gets official mainnet releases.

Upgrade Strategy:

  • Official Releases - Deploy 1 pool and it's relays every 24 hours
  • Community requested to only deploy official releases

Changes Requested by: Release Squad Lead

Approvals Required: SRE Tribe Lead, IOG Executive Team, CF Executive Team

Responsible: IOG SRE Accountable: Head of SRE/Release Squad Lead

Consulted: SPOs, IOG Tribes, IOG Executive Team

Informed: Cardano Core Tribe, COO, IOG Director of Engineering, IOG VP Community

Configuration files

Compatible with cardano-node release 8.1.2

Advanced Configurations

Pre-release configurations for select cardano environments can be found here.

Advanced environment configuration files available are:

Advanced Configuration: Preview Testnet

Users wanting to test a cardano-node pre-release version on the preview environment may obtain compatible configuration files below.

Configuration files

Compatible with cardano-node pre-release 8.7.1-pre

Advanced Configuration: Pre-Production Testnet

Users wanting to test a cardano-node pre-release version on the pre-production environment may obtain compatible configuration files below.

Configuration files

Compatible with cardano-node pre-release 8.7.1-pre

Plutus Cost Model

Plutus cost model updates available are:

Plutus Cost Model: 2023-02-14

Environments updated:

  • Mainnet
  • Preprod
  • Preview

Configuration: link

Plutus Cost Model: 2022-11-05

Environments updated:

  • Preview

Configuration: link

Plutus Cost Model: 2022-07-01

Environments updated:

  • Mainnet
  • Preprod

Configuration: link