Issues

• validateBaseSlotUnchanged never fires when layouts are read through unfoldStorageLayout

  OpenZeppelin/openzeppelin-upgrades#1296 · Filter by author nahimterrazas opened on Aug 4, 2026

• Tighten constructor-argument handling for contracts-only validateUpgrade

  OpenZeppelin/openzeppelin-upgrades#1292 · Filter by author coderabbitai opened on Jul 20, 2026
  

• getUnlinkedBytecode crashes with "Bytecode is not a valid hex string" when build-info contains library-linked contracts

  OpenZeppelin/openzeppelin-upgrades#1227 · Filter by author gpablo6 opened on Mar 24, 2026

• [Defender Sunset] No migration path for CREATE2 deterministic deployments via hardhat-upgrades

  OpenZeppelin/openzeppelin-upgrades#1224 · Filter by author Santiago57B opened on Mar 18, 2026
  1

• Unexpected different CREATE2 address when using defender.deployProxy() despite identical parameters

  OpenZeppelin/openzeppelin-upgrades#1199 · Filter by author Santiago57B opened on Dec 4, 2025
  1

• Support upgrades plugin for PolkaVM

  feature
  Feature

  OpenZeppelin/openzeppelin-upgrades#1188 · Filter by author KitHat opened on Sep 4, 2025 · Upgrades Plugin for Polkadot
  1

  

• Document use of precompiled proxies and compiler version for proxies

  docs
  OpenZeppelin/openzeppelin-upgrades#1187 · Filter by author ericglau opened on Sep 3, 2025

• Support unsafe-allow-reachable for constructors

  OpenZeppelin/openzeppelin-upgrades#1184 · Filter by author ericglau opened on Aug 20, 2025

• support gnosis-safe owner for Upgrades.upgradeProxy

  OpenZeppelin/openzeppelin-upgrades#1177 · Filter by author blockchaindevsh opened on Jul 16, 2025

• Can't find upgrade tx in Proxy admin contract

  OpenZeppelin/openzeppelin-upgrades#1176 · Filter by author Supeeerpower opened on Jul 15, 2025

• Potential false positive Missing initializer calls for one or more parent contracts for ERC20PermitUpgradeable

  OpenZeppelin/openzeppelin-upgrades#1175 · Filter by author heueristik opened on Jul 4, 2025
  4

• Hardhat Ignition support

  feature
  OpenZeppelin/openzeppelin-upgrades#1170 · Filter by author AuHau opened on Jun 24, 2025
  1

• ProviderError: the method has been deprecated: eth_accounts when deploying with defender.deployProxy on Polygon Mainnet

  OpenZeppelin/openzeppelin-upgrades#1159 · Filter by author saholo21 opened on May 13, 2025
  4

• Unable to get Deterministic Address for Factory Contract Across Networks using deployProxy method

  OpenZeppelin/openzeppelin-upgrades#1142 · Filter by author saholo21 opened on Mar 20, 2025
  3

• Cannot append to struct at the end of storage layout

  OpenZeppelin/openzeppelin-upgrades#1136 · Filter by author ericglau opened on Feb 27, 2025
  3

• Consider an @oz-renamespaced-from tag to redeclare ERC-7201 namespace tags.

  OpenZeppelin/openzeppelin-upgrades#1132 · Filter by author ernestognw opened on Feb 24, 2025
  1

• validateUpgradeSafety: Cannot read properties of undefined (reading 'ast')

  OpenZeppelin/openzeppelin-upgrades#1126 · Filter by author crystalbit opened on Feb 12, 2025
  3

• Improve validations for transitive parent initializer calls

  OpenZeppelin/openzeppelin-upgrades#1123 · Filter by author ericglau opened on Feb 10, 2025

• 'incorrect-initializer-order' warning fires spuriously for nested initializers

  OpenZeppelin/openzeppelin-upgrades#1121 · Filter by author kyzooghost opened on Feb 7, 2025
  4

• Fix: Hardhat Upgrades API documentation for deployProxy:kind

  OpenZeppelin/openzeppelin-upgrades#1112 · Filter by author utkarsh1097 opened on Jan 17, 2025

• Namespaced layout validations: extract detailed types in interfaces

  OpenZeppelin/openzeppelin-upgrades#1089 · Filter by author ericglau opened on Oct 2, 2024

• "nonce too low" fails proxy deployment

  OpenZeppelin/openzeppelin-upgrades#1073 · Filter by author 0xmichalis opened on Sep 2, 2024

• Can't install and test after cloning

  OpenZeppelin/openzeppelin-upgrades#1058 · Filter by author Michaelr-spherex opened on Aug 7, 2024
  1

• hardhat-upgrades: Use actual build info when verifiying contracts on explorers

  OpenZeppelin/openzeppelin-upgrades#1054 · Filter by author SKYBITDev3 opened on Jul 30, 2024
  1

• Update 5.x proxy artifact paths in next major version of upgrades-core

  breaking change
  OpenZeppelin/openzeppelin-upgrades#931 · Filter by author ericglau opened on Nov 30, 2023