Hello. Is the situation with the crowdsale related contracts the same ( Where is ERC20Mintable.sol in OpenZeppelin Contracts 3.0? )? Seems it was removed in this commit . I don’t want to push you, but maybe you could provide any rough estimate when do you plan to add it back? Thanks for your help and…

Hi @Revinand , Welcome to the community :wave:. Crowdsales have been removed from the OpenZeppelin Contracts v3.0 beta release and there are no plans to migrate them to Solidity 0.6. If you need a crowdsale you can use OpenZeppelin Contracts 2.5: Crowdsales were removed: we’ll continue to provid…

Got it. Thanks for a quick reply

Hi @Revinand , Are you working on a Crowdsale? Are you importing OpenZeppelin Contracts via npm or via GitHub?

Hello @abcoathup , Yes, I am. It’s a small crowdsale, so I need a very basic functionality, but I want to follow the best practices. That’s why I chose OpenZeppelin and asked why did you remove these contracts from the new version. If you say that v2.5 is ok, then it’s fine for me. For now I’m usin…

Hi @Revinand , Crowdsales are in OpenZeppelin Contracts 2.5. Feel free to ask any questions that you need. Any solution should be appropriately tested and audited. You should also obtain appropriate regulatory advice. Crowdsales weren’t included in the migration to Solidity 0.6 (OpenZeppelin Con…

Hello @abcoathup , since crowdsales will be removed with v3.0 What is the recommended pattern as a replacement for them? In my solution I will be deploying N number of token contracts (ERC777). The buyer of a token must send ether and the ether gets transferred to the issuer of those tokens (just li…

Do you mean this page? https://docs.openzeppelin.com/contracts/2.x/crowdsales We could add a notice saying that they are no longer present in 3.x.

Kind of a follow-up question on this. So, my ERC-20 token is built using OpenZeppelin v3, and for crowd sale, I will need v2.5. So, is it okay to create these contracts in two different projects? Coz most ppl I know who were writing crowd sales wrote both their token and their crowd sale contract in…

Hi @PradhumnaPancholi , I think having a project for a Crowdsale extending from OpenZeppelin Contracts 2.x and a separate project for an ERC20 token extending from OpenZeppelin Contracts 3.x is an acceptable approach. The crowdsale has a limited life, whilst the token is meant to have a long life. …

Hi, I know this is very old conversation but I want to use the crowdsale contract so my only option would be version 2.5 which is extremely old by now. Is it still safe to use it now in 2021 or should I opt to custom or other solution? Thank you for advance.

Older versions are safe to use. You may want to take a look at the changelog to see if anything newer since then looks important to your project.

Where are Crowdsale contracts in OpenZeppelin Contracts 3.0?

Archive SDK

Topic		Replies	Views
How to create a Crowdsale with Solidity 0.6? Contracts	2	1721	September 21, 2020
Where are crowdsales? Contracts	7	2703	February 7, 2022
CrowdSale modules supported on OpenZeppelin 4x? Contracts erc20 , crowdsale	1	1544	September 22, 2021
Can I use Crowdsale with ERC20 Token created in OZ4.5.0? Smart Contracts erc20 , crowdsale	6	881	May 25, 2022
Is it safe to use Crowdsales (OpenZeppelin Contracts 2.x) together with the upgradable version of ERC20? Contracts	7	2692	August 25, 2020

Where are Crowdsale contracts in OpenZeppelin Contracts 3.0?

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