[MB151] Authorize Upgrade to RT4204 on Moonbeam via Whitelist

Abstract - This proposal is to authorize the upgrade to runtime 4204 on Moonbeam using the whitelist track.

Details - An issue has been identified in the Moonriver & Moonbeam runtimes. The OpenGov Technical Committee has voted in favor of whitelisting the authorization for upgrades to both networks in order to address this issue quickly.

More details surrounding the issue will be shared at a later time.

Community members are asked to vote:

A new proposal to upgrade Moonbeam to RT4303 will be posted in the next few days.

The Moonriver proposal can be found here.

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Moonbeam was successfully updated to RT4204 at approximately 14:25 UTC today (May 13, 2026).

The identified issues that were patched related to underestimated PoV on certain pre-compiles which could lead to a chain stall under certain conditions.