BitSong
  • Introduction
  • Delegators
    • Delegator FAQ
    • Delegator Security
  • Validators
    • Validator Overview
    • Validator FAQ
    • Validator Security
  • Relayer
  • FAQ
  • Glossary
  • Roadmap
  • Media Kit
  • Links
  • Blockchain
    • Install go-bitsong
    • Join the Mainnet
    • Create Validator
    • CLI Guide
    • Gas and Fees
    • Pruning of State
    • Export the state
    • Verify Mainnet
    • Upgrades
      • From v0.8.0 to v0.10.0
      • From v0.10.0 to v0.11.0
      • From v0.12.x to v0.13.0
      • From v0.13.x to v0.14.0
      • From v0.14.x to v0.15.0
      • From v0.17.0 to v0.18.0
  • Features and Modules
    • Fan Tokens
    • Merkledrop
    • NFTs
    • Marketplace
    • CosmWasm
      • Install rust
      • Deploy a Smart Contract
    • IBC
    • Auth
    • Bank
    • Crisis
    • Capability
    • Community Pool
    • Distribution
    • Evidence
    • Governance
    • Mint
    • Staking
    • Slashing
    • Upgrade
  • BTSG
    • What is BTSG ?
    • Distribution and Tokenomics
    • Wallets
    • Buy and Sell
    • Liquidity Provider
  • Developers
    • bitsongJS
  • PRODUCTS
    • Sinfonia
    • BitSong Studio
  • USEFUL GUIDES
    • How to Create a BitSong wallet
    • How to Import Your BitSong Wallet
    • How to Stake $BTSG
    • How to Add $BTSG Liquidity to Osmosis Pools
    • Sinfonia User's Guide
    • How to Report a Bug on Sinfonia
  • Global Ambassador Program
    • Who is an ambassador?
    • Program Rules
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  1. Features and Modules

Upgrade

Upgrade is an implementation of a Cosmos SDK module that facilitates smoothly upgrading a live Cosmos chain to a new (breaking) software version. It accomplishes this by providing a BeginBlocker hook that prevents the blockchain state machine from proceeding once a pre-defined upgrade block height has been reached.

The module does not prescribe anything regarding how governance decides to do an upgrade, but just the mechanism for coordinating the upgrade safely. Without software support for upgrades, upgrading a live chain is risky because all of the validators need to pause their state machines at exactly the same point in the process. If this is not done correctly, there can be state inconsistencies which are hard to recover from.

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Last updated 3 years ago