diff --git a/manifests/php.yml b/manifests/php.yml
index f337d84c492..744eec5e225 100644
--- a/manifests/php.yml
+++ b/manifests/php.yml
@@ -1513,42 +1513,68 @@ manifest:
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_agent_populated_fields_empty_TS013:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_cardinality_overflow_sentinel_TS017:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_distinct_aggregationkeys_TS003:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_http_method_endpoint_TS011:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_measured_spans_TS004:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_metrics_computed_after_span_finsh_TS009:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_metrics_msgpack_serialization_TS001:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_partial_version_excluded_TS014:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_payload_metadata_TS012:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_sample_rate_0_TS007:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_span_kind_eligibility_TS015:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_successes_errors_recorded_separately_TS006:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_library_tracestats.py::Test_Library_Tracestats::test_top_level_TS005:
     - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
       component_version: '>=1.19.0'
+    - declaration: 'missing_feature (CSS v1.2.0: dd-trace-php ships CSS since v1.19.0, but the sidecar stats exporter retains buckets younger than ~20s (buffer_len=2 * bucket_size=10s) and dd_trace_synchronous_flush passes force=false, so short-lived parametric tests never observe a /v0.6/stats request)'
+      component_version: '>=1.19.0'
   tests/parametric/test_llm_observability/: irrelevant (library does not implement LLM Observability)
   tests/parametric/test_otel_api_interoperability.py::Test_Otel_API_Interoperability: v0.94.0
   tests/parametric/test_otel_env_vars.py::Test_Otel_Env_Vars: v1.1.0