Outdated MetaTx guide

[juanigallo]

The metatx guide currently uses the MinimalForwarder contract as an example. However, this contract was removed in OpenZeppelin/openzeppelin-contracts#4346.

I believe it would be beneficial to update the documentation and utilize ERC2771Forwarder.sol instead.

If you agree with this suggestion, I can create a pull request with the necessary changes

[ernestognw]

Hey @juanigallo, the forwarder was updated within contracts 5.0, which hasn't been released yet so this can wait. In any case, I think we should add a warning to the guide mentioning it must use contracts 4.x to prevent any unintentional mistake.

Optionally we can even hide this guide depending on the docs version (we need to check if that's possible).

A PR for this would be very much appreciated! But please understand we may take a bit to review before we decide the strategy for updating guides towards 5.0 but should be around late September for the release candidate.

EDIT: Gosh! sorry for the multiple issue transfers, they didn't go as intended

[frangio]

This issue is fine in the defender-docs repo because it relates to Defender documentation content.

I believe it would be beneficial to update the documentation and utilize ERC2771Forwarder.sol instead.

We shouldn't update the guide until ERC2771Forwarder is released in 5.0. In the meantime MinimalForwarder is right.

Adding a warning to mention that MinimalForwarder will be replaced by ERC2771Forwarder in the next OpenZeppelin Contracts release would be fine. No need to hide the guide!

We should prepare the update to publish once 5.0 is released.

[juanigallo]

Hi @frangio. Is anyone in the team working on this? If not, just let me know and I can create a new guide

[ernestognw]

Hey @juanigallo, nobody is working on the guide right now but 5.0 is out so feel free to submit a PR.

[cairoeth]

Updated the guide for Defender 2.0 with #285.