Version 8.6.266

TBR=v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com

Change-Id: I0b68f8cf984bea3731d5be196b2267c6921ce6d1
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2324742
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/8.6.266@{#1}
Cr-Branched-From: c7643fe4857a7f96e38f4164d32279063a3357f0-refs/heads/master@{#69115}
diff --git a/WATCHLISTS b/WATCHLISTS
index 4fe266f..54d6bbe 100644
--- a/WATCHLISTS
+++ b/WATCHLISTS
@@ -117,7 +117,7 @@
     ],
     'merges': [
       # Only enabled on branches created with tools/release/create_release.py
-      # 'v8-merges@googlegroups.com',
+      'v8-merges@googlegroups.com',
     ],
     'wasm': [
       'wasm-v8@google.com',
diff --git a/include/v8-version.h b/include/v8-version.h
index 9c75a2c..271d106 100644
--- a/include/v8-version.h
+++ b/include/v8-version.h
@@ -10,11 +10,11 @@
 // system so their names cannot be changed without changing the scripts.
 #define V8_MAJOR_VERSION 8
 #define V8_MINOR_VERSION 6
-#define V8_BUILD_NUMBER 0
+#define V8_BUILD_NUMBER 266
 #define V8_PATCH_LEVEL 0
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)
-#define V8_IS_CANDIDATE_VERSION 1
+#define V8_IS_CANDIDATE_VERSION 0
 
 #endif  // V8_INCLUDE_VERSION_H_