diff --git a/docs/announce/index.md b/docs/announce/index.md
index fb5a3963ad..a8973fb980 100644
--- a/docs/announce/index.md
+++ b/docs/announce/index.md
@@ -2,11 +2,18 @@
 # Announcement
 
 <div class="doc-announce">
-    <a href="./final-sunset-bc-mainnet/">
+    <a href="./savanna-greenfield/">
         <div>
-            <div class="announce-title">Final Sunset of BC (Mainnet)</div>
-            <div class="announce-desc">Introduce the Final Sunset Hardfork on BC Mainnet</div>
+            <div class="announce-title">Greenfield Savanna Hardfork (Testnet) </div>
+            <div class="announce-desc">Bugfixing on Greenfield Testnet</div>
         </div>
-        <span class="announce-date">2024 Nov 6</span>
+        <span class="announce-date">2024 December 02</span>
+    </a>
+    <a href="./savanna-greenfield/">
+        <div>
+            <div class="announce-title">Greenfield Savanna Hardfork (Mainnet) </div>
+            <div class="announce-desc">Bugfixing on Greenfield Mainnet</div>
+        </div>
+        <span class="announce-date">2024 December 12</span>
     </a>
 </div>
diff --git a/docs/announce/savanna-greenfield.md b/docs/announce/savanna-greenfield.md
new file mode 100644
index 0000000000..a5820c57dc
--- /dev/null
+++ b/docs/announce/savanna-greenfield.md
@@ -0,0 +1,28 @@
+# Savanna Upgrade of Greenfield
+
+<div class="doc-announce-info">
+    <span class="version-tag">Hardfork</span>
+</div>
+
+
+## Upgrade Timeline
+
+- Testnet: December 2nd 2024 07:00:00 AM UTC Blockheight: 14691233
+
+- Mainnet: December 12th 2024 07:00:00 AM UTC Blockheight: 14667574
+
+## Validators and SPs should complete upgrading to the latest version before hardfork: 
+
+For Validators: greenfield [v1.10.0](https://github.com/bnb-chain/greenfield/releases/tag/v1.10.0?ref=bnbchain.ghost.io)
+
+For SPs: greenfield-storage-provider [v1.10.0](https://github.com/bnb-chain/greenfield-storage-provider/releases/tag/v1.10.0?ref=bnbchain.ghost.io)
+
+
+
+## Bug fixing
+
+* [#647] https://github.com/bnb-chain/greenfield/pull/647 fix: fail to resume frozen payment account when netflow is zero
+* [#1435] https://github.com/bnb-chain/greenfield-storage-provider/pull/1435 feat: fix gc objects
+
+
+[//]: # (Reference: https://www.bnbchain.org/en/blog/bnb-greenfield-savanna-hardfork)
\ No newline at end of file
diff --git a/mkdocs.yml b/mkdocs.yml
index 45fbafe2fb..5a90e2d73e 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -62,7 +62,7 @@ nav:
   - Announcements:
     - Announcements: ./announce/index.md
     - Upcoming:
-      - Final Sunset Hardfork(BC Mainnet): ./announce/final-sunset-bc-mainnet.md
+      - Greenfield Savanna Hardfork: ./announce/savanna-greenfield.md
 
     - Passed:
       - Fjord Hardfork(opBNB): ./announce/fjord-opbnb.md
@@ -78,6 +78,7 @@ nav:
       - Final Sunset Hardfork(BC testnet): ./announce/final-sunset-bc-testnet.md
       - Bohr Hardfork(BSC): ./announce/bohr-bsc.md
       - Altai Hardfork(Gnfd): ./announce/altai-gnfd.md
+      - Final Sunset of BC (Mainnet): ./announce/final-sunset-bc-mainnet.md
   - BNB Chain Fusion:
     - BNB Chain Fusion: ./bc-fusion/index.md
     - Overview: ./bc-fusion/overview.md