adding context and removing a broken link

Author: sbvegan

pages/stack/smart-contracts.mdx

@@ -35,7 +35,11 @@ Contract releases have a component name of `op-contracts` and therefore are tagg
 
 #### op-contracts/v1.8.0 - Holocene contract changes 
 
-This release is suitable for the L1 contracts as part of the Holocene network upgrade.
+This release is suitable for the L1 contracts as part of the Holocene network upgrade. The Holocene network upgrade contains three changes:
+
+*   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.
+*   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.
+*   MIPS contract upgrade: Updates to support additional calls made by the new op-program version.
 
 *   [Official - Holocene Contract Release](https://github.com/ethereum-optimism/optimism/releases/tag/op-contracts%2Fv1.8.0)
 *   [Governance Post](https://gov.optimism.io/t/upgrade-proposal-11-holocene-network-upgrade/9313)
@@ -69,7 +73,7 @@ This release is suitable for the L1 contracts as part of the Holocene network up
 
 The release fixes security vulnerabilities found in Fault Proof contracts. They were made in response to security vulnerabilities identified during a series of third-party security audits by Spearbit, Cantina, and Code4rena. None of the vulnerabilities have been exploited, and user assets are not and were never at risk.
 
-The upgrade was coupled with the [Granite network upgrade](/operators/node-operators/network-upgrades#granite) to improve the stability and performance of the Fault Proof System. In addition, the capabilities of the Guardian and DeputyGuardian have been extended to set the anchor state for the Fault Proof System in order to prevent referencing invalid anchor states.
+The upgrade was coupled with the Granite network upgrade to improve the stability and performance of the Fault Proof System. In addition, the capabilities of the Guardian and DeputyGuardian have been extended to set the anchor state for the Fault Proof System in order to prevent referencing invalid anchor states.
 
 *   [Official - Fault Proof Fixes Release](https://github.com/ethereum-optimism/optimism/releases/tag/op-contracts%2Fv1.6.0)
 *   [Governance Post](https://gov.optimism.io/t/upgrade-proposal-10-granite-network-upgrade/8733)