Update pectra-changes.mdx

Author: sbvegan

pages/notices/pectra-changes.mdx

@@ -37,13 +37,13 @@ This page outlines breaking changes related to the Ethereum Pectra (Prague-Elect
 If you experience difficulty at any stage of this process, please reach out to [developer support](https://github.com/ethereum-optimism/developers/discussions).
 
 <Callout type="info">
-  This page will be updated continuously with information on upgrade runbooks and timelines as they come. Here's the tentative L1 Pectra hard fork times per the ACDC that happened on Feb 6th:
+  This page will be updated continuously with information on upgrade runbooks and timelines as they come. Here's the tentative L1 Pectra hard fork times per the ACDC that happened on April 3rd:
 
   L1 Client testnet releases out by Feb 13 (ACDE):
 
-  *   Holesky slot: `1740434112` (Mon, Feb 24 at 21:55:12 UTC)
-  *   Sepolia slot: `1741159776` (Wed, Mar 5 at 07:29:36 UTC)
-  *   +30 day mainnet slot: `1744154711` (Tue, Apr 8 at 23:25:11 UTC)
+  *   Holesky: `1740434112` (Mon, Feb 24 at 21:55:12 UTC)
+  *   Sepolia: `1741159776` (Wed, Mar 5 at 07:29:36 UTC)
+  *   Mainnet: `1744905600` (Thu, Apr 17 16:00:00 UTC 2025)
 </Callout>
 
 ## What's included in Pectra?
@@ -119,12 +119,12 @@ The Pectra upgrade changes the derivation rules, permissionless fault proof chai
 <Steps>
   ### Verify the new absolute prestate
 
-  The absolute prestate is generated with the [op-program/v1.5.0-rc.4](https://github.com/ethereum-optimism/optimism/tree/op-program/v1.5.0-rc.4). You can use this new absolute prestate (`0x0354eee87a1775d96afee8977ef6d5d6bd3612b256170952a01bf1051610ee01`) for the following chains:
+  The absolute prestate is generated with the [op-program/v1.5.0](https://github.com/ethereum-optimism/optimism/tree/op-program/v1.5.0). You can use this new absolute prestate (`0x039facea52b20c605c05efb0a33560a92de7074218998f75bcdf61e8989cb5d9`) for the following chains:
 
   *   Sepolia: Base, OP, Metal, Mode, Zora, Ethernity, Unichain, Ink, Minato (Soneium)
   *   Mainnet: Base, OP, Orderly, Lyra, Metal, Mode, Zora, Lisk, Ethernity, Binary, Ink, Unichain, Soneium
 
-  You can verify this absolute prestate by running the following [command](https://github.com/ethereum-optimism/optimism/blob/0026006e6a7a482332a7833876f915acb9dff4c6/Makefile#L129-L131) in the root of the monorepo on the `op-program/v1.5.0-rc.4` tag:
+  You can verify this absolute prestate by running the following [command](https://github.com/ethereum-optimism/optimism/blob/0026006e6a7a482332a7833876f915acb9dff4c6/Makefile#L129-L131) in the root of the monorepo on the `op-program/v1.5.0` tag:
 
   ```shell
   make reproducible-prestate
@@ -133,12 +133,12 @@ The Pectra upgrade changes the derivation rules, permissionless fault proof chai
   You should expect the following output at the end of the command:
 
   ```shell
-  Cannon Absolute prestate hash:
-  0x0354eee87a1775d96afee8977ef6d5d6bd3612b256170952a01bf1051610ee01
-  Cannon64 Absolute prestate hash:
-  0x03ee2917da962ec266b091f4b62121dc9682bb0db534633707325339f99ee405
-  CannonInterop Absolute prestate hash:
-  0x03673e05a48799e6613325a3f194114c0427d5889cefc8f423eed02dfb881f23
+  Cannon Absolute prestate hash: 
+  0x039facea52b20c605c05efb0a33560a92de7074218998f75bcdf61e8989cb5d9
+  Cannon64 Absolute prestate hash: 
+  0x039970872142f48b189d18dcbc03a3737338d098b0101713dc2d6710f9deb5ef
+  CannonInterop Absolute prestate hash: 
+  0x03a806c966e97816f1ff8d4f04a8ec823099e8f9c32e1d0cfca814f545b85115
   ```
 
   ### Upload your new preimage file