fix: issue 9127. teleport reactivated

[loanMaster]

Hello Polkadot Apps maintainers

This PR fixes #9127
by using XCM v2 for Kusama and v1 for Polkadot teleports.

v2 is used as default if not otherwise defined.

[jacogr]

Thank you. Some small requests around the versioning maintenance.

[joepetrowski]

Polkadot and all system chains are now on V3, we really shouldn't use V1 or V2 at all.

[jacogr]

Since as per Joe's comments all are (currently) on V3 could just simplify it completely -

• only support V3
• remove all version config

So I guess it could be just as simple as renaming the old key in the message construction to V3.

(If anything is not on V3, e.g. have not checked Encointer, just don't allow teleport functionality)

Stale review.

[loanMaster]

I updated to xcm V3. The kusama <-> encointer network channel does not support xcm V3 and was therefore deactivated.

On Rococo the transfer works from Rococo to Asset Hub but not from Asset Hub to Rococo. Should I disable?

Also on Rococo the transferred assets from a parachain to Rococo sometimes don't show up at all, maybe related to this:
paritytech/polkadot-testnet-faucet#286
The transaction itself passes successfully.

On Westend, Kusama, Polkadot the transfers worked properly.

@jacogr: Could you review again? Thank you.

[jacogr]

Thank you.

It looks sane, just going through testing through this branch locally (both directions).

PS: I think Rococo is fine to leave as-is. (Since it is a testnet without any funds at risk - since it also evolves quite rapidly, having the functionality available is great, even if it temporaily doesn't quite work as expected).

[jacogr]

Thank you! This is great. (And especially for checking/testing on all the affected relays)

The testing on my side went perfectly.

[polkadot-js-bot]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.