diff --git a/fluent-package/Gemfile b/fluent-package/Gemfile
index 5b6e647c4..ad20c7fa0 100644
--- a/fluent-package/Gemfile
+++ b/fluent-package/Gemfile
@@ -79,6 +79,7 @@ gem "opensearch-ruby", "3.4.0"
 gem "fluent-plugin-opensearch", "1.1.5"
 gem "fluent-plugin-fluent-package-update-notifier", "0.1.0"
 gem "fluent-plugin-obsolete-plugins", "0.1.1"
+gem "fluent-plugin-opentelemetry", "0.2.0"
 
 windows_platforms = [:mingw, :x64_mingw] # :mswin
 # ffi-win32-extensions doesn't support ffi 1.17.1 or later
diff --git a/fluent-package/Gemfile.lock b/fluent-package/Gemfile.lock
index d040b1faa..70f7b5d67 100644
--- a/fluent-package/Gemfile.lock
+++ b/fluent-package/Gemfile.lock
@@ -165,6 +165,11 @@ GEM
       faraday_middleware-aws-sigv4 (~> 1.0.1)
       fluentd (>= 0.14.22)
       opensearch-ruby (>= 3.0.1)
+    fluent-plugin-opentelemetry (0.2.0)
+      async-http (~> 0.88)
+      excon (~> 1.2)
+      fluentd (~> 1.18)
+      google-protobuf (~> 4.30)
     fluent-plugin-parser-winevt_xml (0.2.8)
       base64 (~> 0.2)
       csv (~> 3.2)
@@ -205,6 +210,17 @@ GEM
     fluent-plugin-windows-exporter (1.0.0)
       bindata (~> 2.4)
       fluentd (>= 0.14.10, < 2)
+    google-protobuf (4.31.1)
+      bigdecimal
+      rake (>= 13)
+    google-protobuf (4.31.1-x64-mingw-ucrt)
+      bigdecimal
+      rake (>= 13)
+    google-protobuf (4.31.1-x86_64-linux-gnu)
+      bigdecimal
+      rake (>= 13)
+    googleapis-common-protos-types (1.20.0)
+      google-protobuf (>= 3.18, < 5.a)
     hirb (0.7.3)
     http_parser.rb (0.8.0)
     httpclient (2.9.0)
@@ -307,9 +323,8 @@ GEM
     zstd-ruby (1.5.6.6)
 
 PLATFORMS
+  aarch64-linux
   x64-mingw-ucrt
-  x64-mingw32
-  x86_64-darwin-18
   x86_64-linux
 
 DEPENDENCIES
@@ -338,6 +353,7 @@ DEPENDENCIES
   fluent-plugin-metrics-cmetrics (= 0.1.2)
   fluent-plugin-obsolete-plugins (= 0.1.1)
   fluent-plugin-opensearch (= 1.1.5)
+  fluent-plugin-opentelemetry (= 0.2.0)
   fluent-plugin-parser-winevt_xml (= 0.2.8)
   fluent-plugin-prometheus (= 2.2.1)
   fluent-plugin-prometheus_pushgateway (= 0.2.1)
diff --git a/fluent-package/Rakefile b/fluent-package/Rakefile
index 941e0467b..8b908bbd5 100755
--- a/fluent-package/Rakefile
+++ b/fluent-package/Rakefile
@@ -1146,6 +1146,19 @@ class BuildTask
         remove_files("ports", true) if gem_dir.start_with?("#{gem_staging_dir}/gems/cmetrics-")
       end
     end
+
+    # Remove unnecessary precompiled libraries from fat gems
+    ruby_version = /(\d+\.\d+)/.match(BUNDLED_RUBY_VERSION).to_s
+    Dir.glob("#{gem_staging_dir}/gems/google-protobuf*").each do |gem_dir|
+      cd(gem_dir) do
+        Dir.glob("lib/google/*/protobuf_c.so").each do |so_path|
+          unless so_path.include?(ruby_version)
+            rm_f(so_path)
+          end
+        end
+      end
+    end
+
     Dir.glob("#{fluent_package_staging_dir}/lib/lib*.a").each do |static_library|
       unless static_library.end_with?(".dll.a")
         rm_f(static_library)
diff --git a/fluent-package/msi/pkgsize-test.ps1 b/fluent-package/msi/pkgsize-test.ps1
index 7b8071c4c..0552b905f 100644
--- a/fluent-package/msi/pkgsize-test.ps1
+++ b/fluent-package/msi/pkgsize-test.ps1
@@ -21,7 +21,7 @@ catch {
 
 $msi = (Get-Item "fluent-package\\msi\\repositories\\fluent-package-*.msi") | Sort-Object -Descending { $_.LastWriteTime } | Select-Object -First 1
 "Checking package size: {0}" -F $msi.FullName | Write-Host
-$package_size_threshold = $response.RawContentLength * 1.2
+$package_size_threshold = $response.RawContentLength * 1.3
 $previous_msi = (Get-Item $previous_msi_name)
 "{0:0.0} MiB ({1}) {2}" -F ($previous_msi.Length / 1024 / 1024), $previous_msi.Length, $previous_msi.Name | Write-Host
 "{0:0.0} MiB ({1}) {2}" -F ($msi.Length / 1024 / 1024), $msi.Length, $msi.Name | Write-Host