diff --git a/docs/feature-support-matrix.md b/docs/feature-support-matrix.md
index 3adacb328..b83afeefc 100644
--- a/docs/feature-support-matrix.md
+++ b/docs/feature-support-matrix.md
@@ -29,11 +29,13 @@ The matrix below reflects the canonical Council-ratified version. As outlined in
 | eip155:122                  | fuse          | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
 | eip155:81457                | blast-mainnet | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
 | eip155:288                  | boba          | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
-| eip155:56288                | boba-bnb      | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
 | eip155:7777777              | zora          | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
 | eip155:34443                | mode          | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
 | eip155:1284                 | moonbeam      | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
 | eip155:30                   | rootstock     | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
+| eip155:11155111             | sepolia       | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
+| eip155:97                   | chapel        | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
+| eip155:130                  | unichain      | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
 | **Data Source Features**    |               |             |              |                   |                      |                  |              |
 | ipfs.cat in mappings        |               | Yes         | Yes          | No                | No                   | No               |              |
 | ENS                         |               | Yes         | Yes          | Yes               | Yes                  | Yes              |              |
@@ -50,11 +52,6 @@ The latest for the feature matrix above:
 ```
 graph-node: >=0.38.0 <=0.39.1
 ```
-
-### Latest Council snapshot
-
-[GGP-0050 Updated Feature Matrix Support (zora, mode, moonbeam)](https://snapshot.org/#/s:council.graphprotocol.eth/proposal/0x7c1b0eaa299a24ba23f76d86d85b903ac8e8457db3656531e7bd5cee80c20146)
-
 ### Other notes
 
 - Currently, one single matrix is used to reflect protocol behaviour for both Ethereum mainnet and Arbitrum One.
@@ -62,3 +59,5 @@ graph-node: >=0.38.0 <=0.39.1
 - Experimental features are generally not fully supported for indexing rewards and arbitration, and usage of experimental features will be considered during any arbitration that does occur.
 - Query fees apply to all queries, regardless of the underlying features used by a subgraph.
 - Subgraph features not named in the matrix are assumed to be fully supported for indexing & query rewards and arbitration
+- [GGP-0057](https://snapshot.box/#/s:council.graphprotocol.eth/proposal/0x4eff14202f6204c0927860a9adff865fce33c32b6cbe7054227457631ee261b9) : Delegation of Chain Integration & Deprecation Authority to The Graph Foundation (with TAB Approval Requirement). 
+This proposal delegates responsibility for approving new chain integrations (indexing rewards) and deprecating chains to The Graph Foundation, contingent upon receiving approval from the Technical Advisory Board (TAB). This change is intended to streamline operations while maintaining technical oversight. The Council retains override authority.