diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f81a4b..82bda9b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+# 1.1.0 (October 25, 2021)
+- feat: change `transactions_max_buffer` default value to 1 to deliver notifications once they were called
+- feat: use `after_commit` instead of `before_commit` callback and remove the horrible AR patch for rails 4
+
 # 1.0.1 (August 20, 2021)
 - refactor: improve service exit when running in k8s
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 82f4d32..a1dac70 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    pub_sub_model_sync (1.0.1)
+    pub_sub_model_sync (1.1.0)
       rails
 
 GEM
@@ -99,8 +99,8 @@ GEM
       googleapis-common-protos-types (>= 1.0.6, < 2.0)
       googleauth (~> 0.15, >= 0.15.1)
       grpc (~> 1.36)
-    globalid (0.4.2)
-      activesupport (>= 4.2.0)
+    globalid (0.5.2)
+      activesupport (>= 5.0)
     google-cloud-core (1.6.0)
       google-cloud-env (~> 1.0)
       google-cloud-errors (~> 1.0)
@@ -116,7 +116,6 @@ GEM
       google-cloud-errors (~> 1.0)
       grpc-google-iam-v1 (>= 0.6.10, < 2.0)
     google-protobuf (3.17.0)
-    google-protobuf (3.17.0-x86_64-linux)
     googleapis-common-protos (1.3.11)
       google-protobuf (~> 3.14)
       googleapis-common-protos-types (>= 1.0.6, < 2.0)
@@ -133,9 +132,6 @@ GEM
     grpc (1.37.1)
       google-protobuf (~> 3.15)
       googleapis-common-protos-types (~> 1.0)
-    grpc (1.37.1-x86_64-linux)
-      google-protobuf (~> 3.15)
-      googleapis-common-protos-types (~> 1.0)
     grpc-google-iam-v1 (0.6.11)
       google-protobuf (~> 3.14)
       googleapis-common-protos (>= 1.3.11, < 2.0)
@@ -143,27 +139,27 @@ GEM
     i18n (1.8.10)
       concurrent-ruby (~> 1.0)
     jwt (2.2.3)
-    loofah (2.9.1)
+    loofah (2.12.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
-    marcel (1.0.1)
+    marcel (1.0.2)
     memoist (0.16.2)
     method_source (1.0.0)
     mini_mime (1.0.3)
     minitest (5.14.4)
     multi_json (1.15.0)
     multipart-post (2.1.1)
-    nio4r (2.5.7)
-    nokogiri (1.11.3-x86_64-darwin)
+    nio4r (2.5.8)
+    nokogiri (1.12.5-x86_64-linux)
       racc (~> 1.4)
     os (1.1.1)
     parallel (1.20.1)
     parser (3.0.1.1)
       ast (~> 2.4.1)
     public_suffix (4.0.6)
-    racc (1.5.2)
+    racc (1.6.0)
     rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -185,7 +181,7 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.3.0)
+    rails-html-sanitizer (1.4.2)
       loofah (~> 2.3)
     railties (6.1.3.2)
       actionpack (= 6.1.3.2)
@@ -242,7 +238,7 @@ GEM
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
     unicode-display_width (1.7.0)
-    websocket-driver (0.7.3)
+    websocket-driver (0.7.5)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)
     zeitwerk (2.4.2)
@@ -264,4 +260,4 @@ DEPENDENCIES
   sqlite3
 
 BUNDLED WITH
-   2.2.17
+   2.2.29
diff --git a/lib/pub_sub_model_sync/version.rb b/lib/pub_sub_model_sync/version.rb
index 13d304f..dc495e3 100644
--- a/lib/pub_sub_model_sync/version.rb
+++ b/lib/pub_sub_model_sync/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module PubSubModelSync
-  VERSION = '1.0.1'
+  VERSION = '1.1.0'
 end