I want to create upgradeable contracts and I would love to use OpenZeppelin to that. However, I have mappings in my smart contract and as far as I understood it is not possible with dynamic-size data structures unless using [Unstructured storage. However, in this case the solution involves a lot of…

Hi @Suzana_Maranhao welcome to the community :wave: With the OpenZeppelin SDK your upgradeable contracts can include mappings. See the OpenZeppelin SDK Upgrades Pattern documentation: https://docs.openzeppelin.com/sdk/2.5/pattern The OpenZeppelin implementations of ERC20 and ERC721 both contain …

Upgradeability with mappings?

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abcoathup Split this topic September 3, 2019, 8:56pm 6

A post was split to a new topic: Compare OpenZeppelin SDK with ERC930/ERC1504

Topic		Replies	Views
Compare OpenZeppelin SDK with ERC930/ERC1504 General	5	789	September 6, 2019
Evaluating using OpenZeppelin SDK General	3	1234	September 2, 2019
Creating an openzeppelin-contracts-upgradeable Smart Contract Contracts	2	1046	May 24, 2021
First release of OpenZeppelin Contracts Upgradeable Announcements	1	4490	November 17, 2020
Can we use OpenZeppelin Contracts 3.0 with upgradeable contracts? SDK	10	2001	May 18, 2020

Upgradeability with mappings?

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