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CIP-0049: v8 Network Upgrade

FinalMetaby @jcsteinCreated 30-04-2026
TL;DR

This Celestia Improvement Proposal (CIP-49) outlines the v8 network upgrade, which includes state-breaking changes from the previously planned Hibiscus (v7) upgrade. The v8 upgrade incorporates CIP-44, CIP-45, and CIP-46, which adjust validator commission bounds, implement a forwarding module, and introduce a ZK interchain security module, respectively. The v8 upgrade aims to preserve the historical record of the Hibiscus upgrade while avoiding confusion between the two network upgrades.

cip49
titlev8 Network Upgrade
descriptionReference CIPs included in the v8 Network Upgrade
author@jcstein
discussions-tohttps://github.com/celestiaorg/CIPs/pull/396
statusFinal
typeMeta
created2026-04-30
requiresCIP-44, CIP-45, CIP-46

Abstract

This Meta CIP lists the CIPs included in the v8 network upgrade. v8 carries forward the same state-breaking changes that were included in the Hibiscus (v7) network upgrade, after v7 was prevented from activating on Mainnet Beta due to an x/forwarding bug discovered during testnet rollout.

Specification

Included CIPs

  • CIP-44: Adjust Validator Commission Bounds
  • CIP-45: Forwarding Module
  • CIP-46: ZK Interchain Security Module

All of the above CIPs are state breaking, and thus require a breaking network upgrade.

Rationale

This CIP provides a complete list of breaking changes for the v8 network upgrade, along with links to those specs. A separate Meta CIP avoids applying the Hibiscus name to both v7 and v8 while preserving the historical record that v7 contained the same CIPs.

Security Considerations

This CIP does not have additional security concerns beyond what is already discussed in each of the listed specs.

Copyright and related rights waived via CC0.