Clarify upgrades

pages/stack/smart-contracts/upgrade-op-contracts-1-6-1-8.mdx

@@ -23,17 +23,14 @@ import { Callout } from 'nextra/components'
 
 # Upgrading Optimism L1 smart contracts from v1.6.0 or v1.3.0 to v1.8.0
 
-This guide provides specific instructions for upgrading Optimism's Layer 1 contracts from `op-contracts/v1.6.0` to `op-contracts/v1.8.0`. This upgrade includes important changes to the system configuration and fault proof system.
+This guide provides specific instructions for upgrading Optimism's Layer 1 contracts from `op-contracts/v1.3.0` to `op-contracts/v1.8.0`. This upgrade includes important changes to the system configuration and fault proof system.
 
 ## Overview of the Holocene upgrade
 
 The Holocene Upgrade supports two primary upgrade paths, each with specific components and considerations:
 
-1.  **Upgrading from v1.6.0 to v1.8.0:**
-    *   Always upgrades the `SystemConfig` contract with improvements
-    *   Provides flexible options for fault proof implementation:
-        *   Permissionless fault proofs enabled (including `FaultDisputeGame`)
-        *   Permissioned fault proofs enabled (excluding `FaultDisputeGame`)
+*   Deploy and upgrade `op-contracts/v1.3.0` -> `op-contracts/v1.8.0`, which this doc covers.
+*   Deploy and upgrade `op-contracts/1.6.0` -> `op-contracts/v1.8.0`, which you can read more about in our [Holocene notice page](https://docs.optimism.io/notices/holocene-changes).
 
 ## Required dependencies