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This release is suitable for the L1 contracts as part of the Holocene network upgrade. The Holocene network upgrade contains three changes:
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* Holocene block derivation: a set of changes that render the derivation pipeline stricter and simpler, but also improve worst-case scenarios for Fault Proofs and Interoperability.
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* EIP-1559 configurability: The elasticity and denominator EIP-1559 parameters become configurable via the SystemConfig L1 contract, allowing gas target and gas limit to be independently configured.
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* MIPS contract upgrade: Updates to support additional calls made by the new op-program version.
* AddressManager: [Latest (this has no version)](https://github.com/ethereum-optimism/optimism/blob/op-contracts/v1.2.0/packages/contracts-bedrock/src/legacy/AddressManager.sol)
@@ -109,14 +112,14 @@ The upgrade was coupled with the Granite network upgrade to improve the stabilit
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The Safe Extensions protocol upgrade is intended to increase the security and
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decentralization of the Superchain by:
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1. Increasing the Security Council Safe's signing threshold, from 4 to 10, out
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of 13 owners. This meets the 75% threshold requirement for a Stage 1 rollup
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outlined in [L2Beat's Stages framework](https://medium.com/l2beat/stages-update-security-council-requirements-4c79cea8ef52)
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2. Reassigning the role of Guardian from the Foundation to a new Guardian Safe
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with the Security Council Safe as its sole owner. This moves the Superchain
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closer to satisfying the 1 week exit window requirement for Stage 1.
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* Additionally the Foundation is appointed to the new DeputyGuardian role
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which is able to act as Guardian through the Guardian Safe. This
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1. Increasing the Security Council Safe's signing threshold, from 4 to 10, out
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of 13 owners. This meets the 75% threshold requirement for a Stage 1 rollup
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outlined in [L2Beat's Stages framework](https://medium.com/l2beat/stages-update-security-council-requirements-4c79cea8ef52)
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2. Reassigning the role of Guardian from the Foundation to a new Guardian Safe
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with the Security Council Safe as its sole owner. This moves the Superchain
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closer to satisfying the 1 week exit window requirement for Stage 1.
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* Additionally the Foundation is appointed to the new DeputyGuardian role
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which is able to act as Guardian through the Guardian Safe. This
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appointment can be revoked by the Security Council Safe at any time.
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3. Reassigning the owner of the L2ProxyAdmin contract from the Foundation to
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the Security Council. This ensures the Security Council Safe has a blocking
@@ -126,7 +129,7 @@ closer to satisfying the 1 week exit window requirement for Stage 1.
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