diff --git a/.github/workflows/run-end-to-end.yml b/.github/workflows/run-end-to-end.yml
index a7e94af1863..928551f0f2f 100644
--- a/.github/workflows/run-end-to-end.yml
+++ b/.github/workflows/run-end-to-end.yml
@@ -386,6 +386,9 @@ jobs:
     - name: Run TELEMETRY_ENHANCED_CONFIG_REPORTING scenario
       if: steps.build.outcome == 'success' && !cancelled() && contains(inputs.scenarios, '"TELEMETRY_ENHANCED_CONFIG_REPORTING"')
       run: ./run.sh TELEMETRY_ENHANCED_CONFIG_REPORTING
+    - name: Run TELEMETRY_EXTENDED_HEARTBEAT scenario
+      if: steps.build.outcome == 'success' && !cancelled() && contains(inputs.scenarios, '"TELEMETRY_EXTENDED_HEARTBEAT"')
+      run: ./run.sh TELEMETRY_EXTENDED_HEARTBEAT
     - name: Run TELEMETRY_LOG_GENERATION_DISABLED scenario
       if: steps.build.outcome == 'success' && !cancelled() && contains(inputs.scenarios, '"TELEMETRY_LOG_GENERATION_DISABLED"')
       run: ./run.sh TELEMETRY_LOG_GENERATION_DISABLED
diff --git a/manifests/cpp_httpd.yml b/manifests/cpp_httpd.yml
index c9e124ccae9..6abaa4526f0 100644
--- a/manifests/cpp_httpd.yml
+++ b/manifests/cpp_httpd.yml
@@ -188,6 +188,7 @@ manifest:
   tests/test_smoke.py::Test_Library::test_receive_request_trace: missing_feature (For some reason, span type is server i/o web)
   tests/test_span_events.py: incomplete_test_app (Weblog `/add_event` not implemented)
   tests/test_standard_tags.py: irrelevant
+  tests/test_telemetry.py::Test_ExtendedHeartbeat: '>1.0.4'
   tests/test_telemetry.py::Test_Log_Generation: '>=1.0.3'  # Modified by easy win activation script
   tests/test_telemetry.py::Test_Log_Generation::test_log_generation_enabled: missing_feature  # Created by easy win activation script
   tests/test_telemetry.py::Test_MessageBatch: '>=1.0.3'  # Modified by easy win activation script
diff --git a/manifests/cpp_nginx.yml b/manifests/cpp_nginx.yml
index 3d7b45098c6..e452475dfa8 100644
--- a/manifests/cpp_nginx.yml
+++ b/manifests/cpp_nginx.yml
@@ -434,6 +434,7 @@ manifest:
   tests/test_standard_tags.py: irrelevant
   tests/test_telemetry.py::Test_APMOnboardingInstallID: '>=1.12.0'  # Modified by easy win activation script
   tests/test_telemetry.py::Test_DependencyEnable: '>=1.12.0'  # Modified by easy win activation script
+  tests/test_telemetry.py::Test_ExtendedHeartbeat: '>=1.16.1'
   tests/test_telemetry.py::Test_Log_Generation: '>=1.12.0'  # Modified by easy win activation script
   tests/test_telemetry.py::Test_Log_Generation::test_log_generation_enabled: missing_feature  # Created by easy win activation script
   tests/test_telemetry.py::Test_MessageBatch: '>=1.12.0'  # Modified by easy win activation script
diff --git a/manifests/dotnet.yml b/manifests/dotnet.yml
index df00b4ff8bf..dff706e1ac5 100644
--- a/manifests/dotnet.yml
+++ b/manifests/dotnet.yml
@@ -1201,6 +1201,7 @@ manifest:
       component_version: '>=2.41'
   tests/test_standard_tags.py::Test_StandardTagsUserAgent: v2.13.0
   tests/test_telemetry.py::Test_DependencyEnable: v2.35.0
+  tests/test_telemetry.py::Test_ExtendedHeartbeat: v3.39.0
   tests/test_telemetry.py::Test_Log_Generation:  # Modified by easy win activation script
     - weblog_declaration:
         '*': missing_feature
diff --git a/manifests/golang.yml b/manifests/golang.yml
index ff3a0a5f5e7..240716ba670 100644
--- a/manifests/golang.yml
+++ b/manifests/golang.yml
@@ -1456,6 +1456,7 @@ manifest:
   tests/test_standard_tags.py::Test_StandardTagsUrl::test_url_with_sensitive_query_string: missing_feature (tracer did not yet implemented the new version of query parameters obfuscation regex)
   tests/test_standard_tags.py::Test_StandardTagsUserAgent: v1.39.0
   tests/test_telemetry.py::Test_DependencyEnable: v1.73.0-dev
+  tests/test_telemetry.py::Test_ExtendedHeartbeat: '>=2.8.0'
   tests/test_telemetry.py::Test_Log_Generation: v1.73.0-dev
   tests/test_telemetry.py::Test_MessageBatch: v1.73.0-dev
   tests/test_telemetry.py::Test_Metric_Generation_Disabled: v1.73.0-dev
diff --git a/manifests/java.yml b/manifests/java.yml
index 29ef1a462e5..ca629928155 100644
--- a/manifests/java.yml
+++ b/manifests/java.yml
@@ -4357,6 +4357,10 @@ manifest:
       component_version: '>=1.21.0'
   tests/test_standard_tags.py::Test_StandardTagsUserAgent: v0.107.1
   tests/test_telemetry.py::Test_DependencyEnable: v1.7.0
+  tests/test_telemetry.py::Test_ExtendedHeartbeat:
+    - weblog_declaration:
+        '*': missing_feature
+        spring-boot: v1.23.0
   tests/test_telemetry.py::Test_Log_Generation:  # Modified by easy win activation script
     - weblog_declaration:
         '*': missing_feature
diff --git a/manifests/nodejs.yml b/manifests/nodejs.yml
index 43b9643e991..9b467225667 100644
--- a/manifests/nodejs.yml
+++ b/manifests/nodejs.yml
@@ -88,6 +88,8 @@ refs:
   - &ref_5_88_0 '>=5.88.0'
   - &ref_5_89_0 '>=5.89.0'
   - &ref_5_90_0 '>=5.90.0'
+  - &ref_5_94_0 '>=5.94.0'
+  - &ref_5_97_0 '>=5.97.0'
   - &ref_5_98_0 '>=5.98.0'
   - &ref_5_99_0 '>=5.99.0'
   - &ref_6_0_0 '>=6.0.0-pre'
@@ -2429,6 +2431,7 @@ manifest:
   tests/test_standard_tags.py::Test_StandardTagsUrl::test_url_with_sensitive_query_string: missing_feature (tracer did not yet implemented the new version of query parameters obfuscation regex)
   tests/test_standard_tags.py::Test_StandardTagsUserAgent: v2.9.0
   tests/test_telemetry.py::Test_DependencyEnable: missing_feature
+  tests/test_telemetry.py::Test_ExtendedHeartbeat: *ref_5_97_0
   tests/test_telemetry.py::Test_Log_Generation:  # TODO: a lower version might be supported
     - weblog_declaration:
         '*': missing_feature
diff --git a/manifests/php.yml b/manifests/php.yml
index 3ac5cff5276..06928d6405b 100644
--- a/manifests/php.yml
+++ b/manifests/php.yml
@@ -1119,6 +1119,7 @@ manifest:
       component_version: '>=0.93.0'
   tests/test_standard_tags.py::Test_StandardTagsUserAgent: v0.75.0
   tests/test_telemetry.py::Test_DependencyEnable: missing_feature
+  tests/test_telemetry.py::Test_ExtendedHeartbeat: missing_feature (PHP v1.20.0 emits null for dependencies[].version in app-extended-heartbeat, failing schema validation)
   tests/test_telemetry.py::Test_Log_Generation:  # TODO: a lower version might be supported
     - weblog_declaration:
         '*': missing_feature
diff --git a/manifests/python.yml b/manifests/python.yml
index 3efde1b87d2..7ae0a487aaa 100644
--- a/manifests/python.yml
+++ b/manifests/python.yml
@@ -2247,6 +2247,7 @@ manifest:
       component_version: '>=1.18.0-rc1'
   tests/test_standard_tags.py::Test_StandardTagsUserAgent: v1.5.0-rc1
   tests/test_telemetry.py::Test_DependencyEnable: v2.8.0
+  tests/test_telemetry.py::Test_ExtendedHeartbeat: v4.6.5
   tests/test_telemetry.py::Test_Log_Generation:  # Modified by easy win activation script
     - weblog_declaration:
         '*': missing_feature
diff --git a/manifests/ruby.yml b/manifests/ruby.yml
index d096841f822..01ed19fbdfe 100644
--- a/manifests/ruby.yml
+++ b/manifests/ruby.yml
@@ -2143,6 +2143,7 @@ manifest:
         uds-sinatra: missing_feature
   tests/test_standard_tags.py::Test_StandardTagsUserAgent: v1.8.0
   tests/test_telemetry.py::Test_DependencyEnable: v1.4.0
+  tests/test_telemetry.py::Test_ExtendedHeartbeat: ">2.30.0"
   tests/test_telemetry.py::Test_Log_Generation:  # Modified by easy win activation script
     - weblog_declaration:
         '*': missing_feature
diff --git a/tests/schemas/test_schemas.py b/tests/schemas/test_schemas.py
index 96e61a0aae3..379f3b87303 100644
--- a/tests/schemas/test_schemas.py
+++ b/tests/schemas/test_schemas.py
@@ -37,12 +37,6 @@ def test_library(self):
                 condition=context.library < "python@v2.9.0.dev",
                 ticket="APPSEC-52845",
             ),
-            SchemaBug(
-                endpoint="/telemetry/proxy/api/v2/apmtelemetry",
-                data_path="$.payload.configuration[].value",
-                condition=context.library == "golang",
-                ticket="APMS-12697",
-            ),
             SchemaBug(
                 endpoint="/debugger/v1/diagnostics",
                 data_path="$[].content",
@@ -146,12 +140,6 @@ def test_agent(self):
             SchemaBug(
                 endpoint="/api/v2/apmtelemetry", data_path="$", condition=True, ticket="???"
             ),  # the main payload sent by the agent may be an array i/o an object
-            SchemaBug(
-                endpoint="/api/v2/apmtelemetry",
-                data_path="$.payload.configuration[].value",
-                condition=context.library == "golang",
-                ticket="APMS-12697",
-            ),
             SchemaBug(
                 endpoint="/api/v2/debugger",
                 data_path="$[].content",
diff --git a/tests/schemas/utils/miscs/telemetry/v2/objects/configuration.json b/tests/schemas/utils/miscs/telemetry/v2/objects/configuration.json
index 7a7ca884e2b..fa769513b37 100644
--- a/tests/schemas/utils/miscs/telemetry/v2/objects/configuration.json
+++ b/tests/schemas/utils/miscs/telemetry/v2/objects/configuration.json
@@ -29,7 +29,6 @@
     },
     "required": [
       "name",
-      "value",
       "origin"
     ]
   }
diff --git a/tests/test_telemetry.py b/tests/test_telemetry.py
index 41a6771e3ee..9f752300ec5 100644
--- a/tests/test_telemetry.py
+++ b/tests/test_telemetry.py
@@ -1004,3 +1004,53 @@ def test_telemetry_sca_propagated(self):
             f"No telemetry found for {target_service_name} on {target_request_type} with configuration in "
             f"{' or '.join(dd_appsec_sca_enabled_names)}"
         )
+
+
+@scenarios.telemetry_extended_heartbeat
+@features.app_extended_heartbeat_event
+class Test_ExtendedHeartbeat:
+    """Test app-extended-heartbeat telemetry event in end-to-end scenario"""
+
+    def setup_extended_heartbeat_config_matches(self):
+        weblog.get("/")
+
+    def test_extended_heartbeat_config_matches(self):
+        """Test that every config reported in app-started or app-client-configuration-change
+        was eventually reported by at least one app-extended-heartbeat event.
+        """
+        telemetry_data = list(interfaces.library.get_telemetry_data())
+
+        # Collect all config names reported in app-started and config-change events
+        expected_config_names: set[str] = set()
+        found_app_started = False
+
+        for data in telemetry_data:
+            request_type = get_request_type(data)
+            if request_type in ("app-started", "app-client-configuration-change"):
+                if request_type == "app-started":
+                    found_app_started = True
+                for c in get_configurations(data) or []:
+                    expected_config_names.add(c["name"])
+
+        assert found_app_started, "app-started event not found"
+
+        # Collect all config names ever reported across all extended heartbeats
+        heartbeat_config_names: set[str] = set()
+        found_extended_hb = False
+
+        for data in telemetry_data:
+            if get_request_type(data) == "app-extended-heartbeat":
+                found_extended_hb = True
+                for c in get_configurations(data) or []:
+                    heartbeat_config_names.add(c["name"])
+
+        assert found_extended_hb, "app-extended-heartbeat event not found"
+
+        # For each expected config, verify it was reported by at least one extended heartbeat.
+        # Configs may appear in heartbeats before or after they are (re-)reported in
+        # config-change events (e.g. remote config updates re-report existing configs).
+        missing = sorted(expected_config_names - heartbeat_config_names)
+        assert not missing, (
+            f"{len(missing)} config(s) reported in app-started or config-change but never "
+            f"included in any app-extended-heartbeat event: {missing}"
+        )
diff --git a/utils/_context/_scenarios/__init__.py b/utils/_context/_scenarios/__init__.py
index 1f237720823..77a292977e6 100644
--- a/utils/_context/_scenarios/__init__.py
+++ b/utils/_context/_scenarios/__init__.py
@@ -186,6 +186,16 @@ class _Scenarios:
         doc="Test env var `DD_TELEMETRY_METRICS_ENABLED=false`",
         scenario_groups=[scenario_groups.telemetry],
     )
+    telemetry_extended_heartbeat = EndToEndScenario(
+        "TELEMETRY_EXTENDED_HEARTBEAT",
+        weblog_env={
+            "DD_TELEMETRY_HEARTBEAT_INTERVAL": "1",
+            "DD_TELEMETRY_EXTENDED_HEARTBEAT_INTERVAL": "2",
+            "_DD_TELEMETRY_EXTENDED_HEARTBEAT_INTERVAL": "2",
+        },
+        doc="Test app-extended-heartbeat telemetry event with a shortened interval",
+        scenario_groups=[scenario_groups.telemetry],
+    )
 
     # ASM scenarios
     appsec_missing_rules = EndToEndScenario(