The proposal addresses a recent XCM issue where the SetTopic instruction in XCM programs conflicts with destinations set to default version 2. This mismatch leads to failed transactions. Referendum 305 has successfully resolved the issue on Kusama. Now, this proposal sets its sights on Polkadot's relay chain, advocating for a similar adjustment by aligning the safeXcmVersion to v3 and ensuring it sends XCMs in the v3 format by default.
(original Polkadot call: https://polkadot.js.org/apps/#/extrinsics/decode/0x63050103000000).
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