diff --git a/include/cef_api_hash.h b/include/cef_api_hash.h
index f1ee3c76c..dd7676577 100644
--- a/include/cef_api_hash.h
+++ b/include/cef_api_hash.h
@@ -42,13 +42,13 @@
 // way that may cause binary incompatibility with other builds. The universal
 // hash value will change if any platform is affected whereas the platform hash
 // values will change only if that particular platform is affected.
-#define CEF_API_HASH_UNIVERSAL "d128245052a84dd90cd38fed0e6be65824d37de5"
+#define CEF_API_HASH_UNIVERSAL "d026196d35d8894a836ab3a3d033b84195cdb835"
 #if defined(OS_WIN)
-#define CEF_API_HASH_PLATFORM "9b1a4706bf1fca26d542aa5f8b05d222f483c872"
+#define CEF_API_HASH_PLATFORM "4150bd26e7bf639a9b1f3e5860af8c76eeae8570"
 #elif defined(OS_MAC)
-#define CEF_API_HASH_PLATFORM "0038a822915e3567f2434053ebc49723fe6951d5"
+#define CEF_API_HASH_PLATFORM "5cc32f88bd134410eff86b21095138b339d572f2"
 #elif defined(OS_LINUX)
-#define CEF_API_HASH_PLATFORM "66613a535ec6a1aafce6ece8e98cd3876f79633b"
+#define CEF_API_HASH_PLATFORM "b227b3fdd6142a9d8ff0f2252a71425f15960800"
 #endif
 
 #ifdef __cplusplus
diff --git a/include/internal/cef_types.h b/include/internal/cef_types.h
index c455f0064..0ec9fcb5c 100644
--- a/include/internal/cef_types.h
+++ b/include/internal/cef_types.h
@@ -304,9 +304,9 @@ typedef struct _cef_settings_t {
   // Value that will be inserted as the product portion of the default
   // User-Agent string. If empty the Chromium product version will be used. If
   // |userAgent| is specified this value will be ignored. Also configurable
-  // using the "product-version" command-line switch.
+  // using the "user-agent-product" command-line switch.
   ///
-  cef_string_t product_version;
+  cef_string_t user_agent_product;
 
   ///
   // The locale string that will be passed to WebKit. If empty the default
diff --git a/include/internal/cef_types_wrappers.h b/include/internal/cef_types_wrappers.h
index 0e2c195a3..c9a9ba000 100644
--- a/include/internal/cef_types_wrappers.h
+++ b/include/internal/cef_types_wrappers.h
@@ -548,7 +548,7 @@ struct CefSettingsTraits {
     cef_string_clear(&s->root_cache_path);
     cef_string_clear(&s->user_data_path);
     cef_string_clear(&s->user_agent);
-    cef_string_clear(&s->product_version);
+    cef_string_clear(&s->user_agent_product);
     cef_string_clear(&s->locale);
     cef_string_clear(&s->log_file);
     cef_string_clear(&s->javascript_flags);
@@ -587,8 +587,8 @@ struct CefSettingsTraits {
 
     cef_string_set(src->user_agent.str, src->user_agent.length,
                    &target->user_agent, copy);
-    cef_string_set(src->product_version.str, src->product_version.length,
-                   &target->product_version, copy);
+    cef_string_set(src->user_agent_product.str, src->user_agent_product.length,
+                   &target->user_agent_product, copy);
     cef_string_set(src->locale.str, src->locale.length, &target->locale, copy);
 
     cef_string_set(src->log_file.str, src->log_file.length, &target->log_file,
diff --git a/libcef/browser/alloy/alloy_content_browser_client.cc b/libcef/browser/alloy/alloy_content_browser_client.cc
index 932c74692..877909af7 100644
--- a/libcef/browser/alloy/alloy_content_browser_client.cc
+++ b/libcef/browser/alloy/alloy_content_browser_client.cc
@@ -695,9 +695,9 @@ void AlloyContentBrowserClient::AppendExtraCommandLineSwitches(
       switches::kLocalesDirPath,
       switches::kLogFile,
       switches::kLogSeverity,
-      switches::kProductVersion,
       switches::kResourcesDirPath,
       embedder_support::kUserAgent,
+      switches::kUserAgentProductAndVersion,
     };
     command_line->CopySwitchesFrom(*browser_cmd, kSwitchNames,
                                    base::size(kSwitchNames));
diff --git a/libcef/browser/chrome/chrome_content_browser_client_cef.cc b/libcef/browser/chrome/chrome_content_browser_client_cef.cc
index debe29b48..2c8d7f1d2 100644
--- a/libcef/browser/chrome/chrome_content_browser_client_cef.cc
+++ b/libcef/browser/chrome/chrome_content_browser_client_cef.cc
@@ -91,6 +91,16 @@ void ChromeContentBrowserClientCef::AppendExtraCommandLineSwitches(
 
   const base::CommandLine* browser_cmd = base::CommandLine::ForCurrentProcess();
 
+  {
+    // Propagate the following switches to all command lines (along with any
+    // associated values) if present in the browser command line.
+    static const char* const kSwitchNames[] = {
+        switches::kUserAgentProductAndVersion,
+    };
+    command_line->CopySwitchesFrom(*browser_cmd, kSwitchNames,
+                                   base::size(kSwitchNames));
+  }
+
   const std::string& process_type =
       command_line->GetSwitchValueASCII(switches::kProcessType);
   if (process_type == switches::kRendererProcess) {
diff --git a/libcef/common/alloy/alloy_main_delegate.cc b/libcef/common/alloy/alloy_main_delegate.cc
index b9882fb56..ba5b08cd7 100644
--- a/libcef/common/alloy/alloy_main_delegate.cc
+++ b/libcef/common/alloy/alloy_main_delegate.cc
@@ -150,9 +150,10 @@ bool AlloyMainDelegate::BasicStartupComplete(int* exit_code) {
     if (settings_->user_agent.length > 0) {
       command_line->AppendSwitchASCII(embedder_support::kUserAgent,
                                       CefString(&settings_->user_agent));
-    } else if (settings_->product_version.length > 0) {
-      command_line->AppendSwitchASCII(switches::kProductVersion,
-                                      CefString(&settings_->product_version));
+    } else if (settings_->user_agent_product.length > 0) {
+      command_line->AppendSwitchASCII(
+          switches::kUserAgentProductAndVersion,
+          CefString(&settings_->user_agent_product));
     }
 
     if (settings_->locale.length > 0) {
diff --git a/libcef/common/cef_switches.cc b/libcef/common/cef_switches.cc
index 0572f6583..68cb64a1d 100644
--- a/libcef/common/cef_switches.cc
+++ b/libcef/common/cef_switches.cc
@@ -126,6 +126,9 @@ const char kEnableChromeRuntime[] = "enable-chrome-runtime";
 // using the Chrome runtime.
 const char kDisableChromeLoginPrompt[] = "disable-chrome-login-prompt";
 
+// Override the product component of the default User-Agent string.
+const char kUserAgentProductAndVersion[] = "user-agent-product";
+
 #if defined(OS_MAC)
 // Path to the framework directory.
 const char kFrameworkDirPath[] = "framework-dir-path";
diff --git a/libcef/common/cef_switches.h b/libcef/common/cef_switches.h
index a8ca0f34a..a2aa23afb 100644
--- a/libcef/common/cef_switches.h
+++ b/libcef/common/cef_switches.h
@@ -55,6 +55,7 @@ extern const char kDisableNewBrowserInfoTimeout[];
 extern const char kDevToolsProtocolLogFile[];
 extern const char kEnableChromeRuntime[];
 extern const char kDisableChromeLoginPrompt[];
+extern const char kUserAgentProductAndVersion[];
 
 #if defined(OS_MAC)
 extern const char kFrameworkDirPath[];
diff --git a/libcef/common/chrome/chrome_main_delegate_cef.cc b/libcef/common/chrome/chrome_main_delegate_cef.cc
index 3a5f9039f..8469922e6 100644
--- a/libcef/common/chrome/chrome_main_delegate_cef.cc
+++ b/libcef/common/chrome/chrome_main_delegate_cef.cc
@@ -16,8 +16,10 @@
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "chrome/common/chrome_switches.h"
+#include "components/embedder_support/switches.h"
 #include "content/public/common/content_switches.h"
 #include "sandbox/policy/switches.h"
+#include "ui/base/ui_base_switches.h"
 
 #if defined(OS_MAC)
 #include "libcef/common/util_mac.h"
@@ -79,6 +81,22 @@ bool ChromeMainDelegateCef::BasicStartupComplete(int* exit_code) {
       command_line->AppendSwitch(sandbox::policy::switches::kNoSandbox);
     }
 
+    if (settings_->user_agent.length > 0) {
+      command_line->AppendSwitchASCII(embedder_support::kUserAgent,
+                                      CefString(&settings_->user_agent));
+    } else if (settings_->user_agent_product.length > 0) {
+      command_line->AppendSwitchASCII(
+          switches::kUserAgentProductAndVersion,
+          CefString(&settings_->user_agent_product));
+    }
+
+    if (settings_->locale.length > 0) {
+      command_line->AppendSwitchASCII(switches::kLang,
+                                      CefString(&settings_->locale));
+    } else if (!command_line->HasSwitch(switches::kLang)) {
+      command_line->AppendSwitchASCII(switches::kLang, "en-US");
+    }
+
     if (settings_->javascript_flags.length > 0) {
       command_line->AppendSwitchASCII(switches::kJavaScriptFlags,
                                       CefString(&settings_->javascript_flags));
diff --git a/patch/patches/embedder_product_override.patch b/patch/patches/embedder_product_override.patch
index f6b4b3844..63985a31a 100644
--- a/patch/patches/embedder_product_override.patch
+++ b/patch/patches/embedder_product_override.patch
@@ -1,22 +1,24 @@
 diff --git components/embedder_support/user_agent_utils.cc components/embedder_support/user_agent_utils.cc
-index 569518f209aeb..a4944e7060570 100644
+index 569518f209aeb..0cf7c2cc23c43 100644
 --- components/embedder_support/user_agent_utils.cc
 +++ components/embedder_support/user_agent_utils.cc
 @@ -7,6 +7,7 @@
  #include "base/command_line.h"
  #include "base/strings/strcat.h"
  #include "build/branding_buildflags.h"
-+#include "chrome/common/chrome_switches.h"
++#include "cef/libcef/common/cef_switches.h"
  #include "components/embedder_support/switches.h"
  #include "components/version_info/version_info.h"
  #include "content/public/browser/web_contents.h"
-@@ -20,6 +21,10 @@
+@@ -20,6 +21,12 @@
  namespace embedder_support {
  
  std::string GetProduct() {
 +  base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
-+  if (command_line->HasSwitch(switches::kProductVersion))
-+    return command_line->GetSwitchValueASCII(switches::kProductVersion);
++  if (command_line->HasSwitch(switches::kUserAgentProductAndVersion)) {
++    return command_line->GetSwitchValueASCII(
++        switches::kUserAgentProductAndVersion);
++  }
 +
    return version_info::GetProductNameAndVersionForUserAgent();
  }