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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 on 2024-04-12 the chain will be restored from slot 20044800. Any Sanchonet chain participants, stakepools, integrators, etc, will need to clear their chain state to re-sync from that point forward.

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 8.10.0-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 8.9.1

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 8.9.1

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 8.9.1

Advanced Configurations

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

Advanced environment configuration files available are:

Advanced Configuration: Sanchonet Testnet

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

NOTE: When respun on 2024-04-12 the chain will be restored from slot 20044800. Any Sanchonet chain participants, stakepools, integrators, etc, will need to clear their chain state to re-sync from that point forward.

Configuration files

Compatible with cardano-node pre-release 8.10.0-pre

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 8.10.0-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 8.10.0-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