diff --git a/components-rs/Cargo.toml b/components-rs/Cargo.toml
index c4b8de1c34..dfcc3aee29 100644
--- a/components-rs/Cargo.toml
+++ b/components-rs/Cargo.toml
@@ -23,6 +23,7 @@ libdd-data-pipeline = { path = "../libdatadog/libdd-data-pipeline" }
 libdd-tinybytes = { path = "../libdatadog/libdd-tinybytes" }
 libdd-trace-utils = { path = "../libdatadog/libdd-trace-utils" }
 libdd-trace-stats = { path = "../libdatadog/libdd-trace-stats" }
+libdd-trace-protobuf = { path = "../libdatadog/libdd-trace-protobuf" }
 libdd-crashtracker-ffi = { path = "../libdatadog/libdd-crashtracker-ffi", default-features = false, features = ["collector"] }
 libdd-library-config-ffi = { path = "../libdatadog/libdd-library-config-ffi", default-features = false }
 spawn_worker = { path = "../libdatadog/spawn_worker" }
diff --git a/components-rs/remote_config.rs b/components-rs/remote_config.rs
index 5b08de64a8..1138cf707f 100644
--- a/components-rs/remote_config.rs
+++ b/components-rs/remote_config.rs
@@ -92,6 +92,10 @@ pub struct RemoteConfigState {
     manager: RemoteConfigManager,
     live_debugger: LiveDebuggerState,
     dynamic_config: DynamicConfig,
+    // Service name of the currently tracked target. libdd-remote-config's `Target` no longer
+    // exposes its inner fields (they were hidden in libdatadog #2182), so we keep our own copy of
+    // the service — set whenever we track a target — for building debugger diagnostics payloads.
+    current_service: String,
 }
 
 #[repr(C)]
@@ -223,6 +227,7 @@ pub unsafe extern "C" fn ddog_init_remote_config_state(
             ..Default::default()
         },
         dynamic_config: Default::default(),
+        current_service: String::new(),
     })
 }
 
@@ -639,13 +644,17 @@ pub extern "C" fn ddog_remote_configs_service_env_change(
     tags: &libdd_common_ffi::Vec<Tag>,
     process_tags: &libdd_common_ffi::Vec<Tag>,
 ) -> bool {
-    let new_target = Target {
-        service: service.to_utf8_lossy().to_string(),
-        env: env.to_utf8_lossy().to_string(),
-        app_version: version.to_utf8_lossy().to_string(),
-        tags: tags.as_slice().to_vec(),
-        process_tags: process_tags.as_slice().to_vec(),
-    };
+    let service = service.to_utf8_lossy().to_string();
+    // `Target`'s fields are private since libdatadog #2182; construct via the public constructor.
+    // `tags`/`process_tags` are now `Vec<String>` of already-formatted `"key:value"` entries, so
+    // render each `Tag` (whose `Display`/`to_string` yields `"key:value"`) to a String.
+    let new_target = Target::new(
+        service.clone(),
+        env.to_utf8_lossy().to_string(),
+        version.to_utf8_lossy().to_string(),
+        tags.as_slice().iter().map(|t| t.to_string()).collect(),
+        process_tags.as_slice().iter().map(|t| t.to_string()).collect(),
+    );
 
     if let Some(target) = remote_config.manager.get_target() {
         if **target == new_target {
@@ -653,6 +662,8 @@ pub extern "C" fn ddog_remote_configs_service_env_change(
         }
     }
 
+    // Keep our own copy of the service name; `Target` no longer exposes it.
+    remote_config.current_service = service;
     remote_config.manager.track_target(&Arc::new(new_target));
     // Caller must call ddog_process_remote_configs if true.
     // We don't call it here to allow the caller delaying the call as necessary.
@@ -777,12 +788,13 @@ pub unsafe extern "C" fn ddog_send_debugger_diagnostics<'a>(
     probe: &'a Probe,
     timestamp: u64,
 ) -> MaybeError {
-    let service = Cow::Borrowed(
-        remote_config_state
-            .manager
-            .get_target()
-            .map_or("", |t| t.service.as_str()),
-    );
+    // `Target` no longer exposes its service field (libdatadog #2182); use the copy we tracked
+    // when the target was set. Fall back to empty when no target is currently tracked.
+    let service = Cow::Borrowed(if remote_config_state.manager.get_target().is_some() {
+        remote_config_state.current_service.as_str()
+    } else {
+        ""
+    });
     let mut payload = ddog_debugger_diagnostics_create_unboxed(
         probe,
         service,
diff --git a/components-rs/stats.rs b/components-rs/stats.rs
index e2e831c48e..43083a275c 100644
--- a/components-rs/stats.rs
+++ b/components-rs/stats.rs
@@ -10,6 +10,7 @@
 use crate::trace_filter;
 use datadog_ipc::shm_stats::{OwnedShmSpanInput, ShmSpanConcentrator, ShmSpanInput, MAX_PEER_TAGS};
 use datadog_sidecar::service::blocking::{add_span_to_concentrator, SidecarTransport};
+use libdd_trace_protobuf::pb;
 use libdd_trace_stats::span_concentrator::FixedAggregationKey;
 use libdd_common_ffi::slice::{AsBytes, CharSlice};
 use std::collections::HashMap;
@@ -148,7 +149,13 @@ fn build_fixed_key<'a>(span: &'a PhpSpanStats<'a>) -> FixedAggregationKey<&'a st
         http_endpoint: extract_http_endpoint(span),
         http_status_code: extract_http_status_code(span),
         is_synthetics_request: is_synthetics_request(span),
-        is_trace_root: span.is_trace_root,
+        // `is_trace_root` became a `Trilean` in libdatadog #2180; map our bool onto it. The PHP
+        // side always knows whether a span is a trace root, so we never emit `NotSet`.
+        is_trace_root: if span.is_trace_root {
+            pb::Trilean::True
+        } else {
+            pb::Trilean::False
+        },
         grpc_status_code: extract_grpc_status_code(span),
         service_source: char_slice_str(span.service_source),
     }
diff --git a/libdatadog b/libdatadog
index 6a6d4a535e..d7b2aad37e 160000
--- a/libdatadog
+++ b/libdatadog
@@ -1 +1 @@
-Subproject commit 6a6d4a535e9875a7b012ce3f00eb6929649c3fb5
+Subproject commit d7b2aad37e2c45e44ba54473c9dd5ef5e3c94669