Merge pull request #69 from ethereum-optimism/seb/ecotone-update

superchain-upgrades: Update Delta & Ecotone status

specs/protocol/superchain-upgrades.md

@@ -252,11 +252,13 @@ but the matching L1-origin information may not be present at the time of activat
   ([announcement](https://optimism.mirror.xyz/gQWKlrDqHzdKPsB1iUnI-cVN3v0NvsWnazK7ajlt1fI)).
 - `v3.0.0-1`: 2023 Jan 13th - Bedrock pre-release, deployed on OP-Goerli, and later Base-Goerli.
 - `v3.0.0`: 2023 Jun 6th - Bedrock, including the Regolith hardfork improvements, first deployed on OP-Mainnet.
-- `v4.0.0`: 2024 Jan 11th - Canyon network upgrade.
-  [Governance proposal](https://gov.optimism.io/t/final-upgrade-proposal-2-canyon-network-upgrade/7088).
-- `v5.0.0-1`: Delta - Proposed for Feb 22, 2024.
-  [Governance Proposal](https://gov.optimism.io/t/final-upgrade-proposal-3-delta-network-upgrade/7310)
-- `v6.0.0-1`: Ecotone - Very experimental, in development.
+- `v4.0.0`: 2024 Jan 11th - Canyon network upgrade (Shapella).
+  [Governance Proposal](https://gov.optimism.io/t/final-upgrade-proposal-2-canyon-network-upgrade/7088).
+- `v5.0.0`: 2024 Feb 22nd - Delta network upgrade (Span Batches).
+  [Governance Proposal](https://gov.optimism.io/t/final-upgrade-proposal-3-delta-network-upgrade/7310).
+- `v6.0.0`: 2024 Mar 14th - _Proposed_ Ecotone network upgrade (4844 Blob Batches + Cancun).
+  Still under review by governance.
+  [Governance Proposal](https://gov.optimism.io/t/upgrade-proposal-5-ecotone-network-upgrade/7669).
 
 ## Post-Bedrock Network upgrades