diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c76c17..ace6b4f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2.11.0
+
+- Add `@coral-xyz/anchor` to deps
+- ``ProductData.priceAccountKey` was `PublicKey` becomes `PublicKey | null` if the product account doesn't yet have a price account
+- Anchor client now support `updProduct`
+
 ## 2.10.0
 
 - Add `localnet` to `PythCluster`
diff --git a/package-lock.json b/package-lock.json
index 36da534..b8e1d8f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@pythnetwork/client",
-  "version": "2.10.0",
+  "version": "2.11.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@pythnetwork/client",
-      "version": "2.10.0",
+      "version": "2.11.0",
       "license": "Apache-2.0",
       "dependencies": {
         "@coral-xyz/anchor": "^0.26.0",
diff --git a/package.json b/package.json
index bf849d5..2c1a763 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@pythnetwork/client",
-  "version": "2.10.0",
+  "version": "2.11.0",
   "description": "Client for consuming Pyth price data",
   "homepage": "https://pyth.network",
   "main": "lib/index.js",
diff --git a/src/__tests__/Anchor.test.ts b/src/__tests__/Anchor.test.ts
index e7ece07..6465801 100644
--- a/src/__tests__/Anchor.test.ts
+++ b/src/__tests__/Anchor.test.ts
@@ -32,18 +32,25 @@ test('Anchor', (done) => {
       expect(decoded?.data).toStrictEqual({})
     })
   pythOracle.methods
-    .updProduct({ asset_type: 'Crypto', base: 'BTC', description : "BTC/USD", quote_currency :"USD", symbol : "Crypto.BTC/USD", generic_symbol : "BTCUSD"  })
+    .updProduct({
+      asset_type: 'Crypto',
+      base: 'BTC',
+      description: 'BTC/USD',
+      quote_currency: 'USD',
+      symbol: 'Crypto.BTC/USD',
+      generic_symbol: 'BTCUSD',
+    })
     .accounts({ fundingAccount: PublicKey.unique(), productAccount: PublicKey.unique() })
     .instruction()
     .then((instruction) => {
       const decoded = pythOracleCoder().instruction.decode(instruction.data)
       expect(decoded?.name).toBe('updProduct')
-      expect(decoded?.data.asset_type).toBe("Crypto")
-      expect(decoded?.data.base).toBe("BTC")
-      expect(decoded?.data.description).toBe("BTC/USD")
-      expect(decoded?.data.quote_currency).toBe("USD")
-      expect(decoded?.data.symbol).toBe("Crypto.BTC/USD")
-      expect(decoded?.data.generic_symbol).toBe("BTCUSD")
+      expect(decoded?.data.asset_type).toBe('Crypto')
+      expect(decoded?.data.base).toBe('BTC')
+      expect(decoded?.data.description).toBe('BTC/USD')
+      expect(decoded?.data.quote_currency).toBe('USD')
+      expect(decoded?.data.symbol).toBe('Crypto.BTC/USD')
+      expect(decoded?.data.generic_symbol).toBe('BTCUSD')
     })
 
   pythOracle.methods