Hi there, I so similar questions on the forum, but did not find a solution yet. I have to upgrade storage layout in my contract(which is already deployed on mainnet) Current layout uint256[50] private __gap; New layout address private _forwarder; uint256[49] private __gap; Command await upgr…

Storage gaps is supported in the Hardhat and Truffle upgrades plugins now. See https://docs.openzeppelin.com/upgrades-plugins/1.x/writing-upgradeable#storage-gaps for how to use them.

Using storage gaps with `hardhat-upgrades`

Support Upgrades

ericglau Split this topic December 12, 2022, 3:53pm 6

3 posts were split to a new topic: Bad storage gap resize from 46 to 45

Topic		Replies	Views
Storage layout compatibility error with contracts-upgradeable 3.2.2 -> 4.5.1 Upgrades erc20 , proxies , hardhat	2	1223	March 17, 2022
Bad storage gap resize when adding variables and reducing gap Upgrades	11	883	July 28, 2023
Bad storage gap resize when adding inherited contract Upgrades	3	804	December 16, 2022
New storage layout is incompatible: ContextUpgradeable.sol:36: Inserted `__gap` Upgrades proxies	4	2593	August 1, 2022
upgradeProxy - trying to add ERC2771-support to an existing ERC721 contract Upgrades	5	853	May 4, 2023

Using storage gaps with `hardhat-upgrades`

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