diff --git a/trunk/doc/CHANGELOG.md b/trunk/doc/CHANGELOG.md
index 803badf09..6e8bd209d 100644
--- a/trunk/doc/CHANGELOG.md
+++ b/trunk/doc/CHANGELOG.md
@@ -7,6 +7,7 @@ The changelog for SRS.
 <a name="v6-changes"></a>
 
 ## SRS 6.0 Changelog
+* v6.0, 2025-07-10, Merge [#4414](https://github.com/ossrs/srs/pull/4414): Fix H.264 B-frame detection logic to comply with specification. v6.0.169 (#4414)
 * v6.0, 2025-06-04, Merge [#4325](https://github.com/ossrs/srs/pull/4325): fix bug: loop transcoding #3516. v6.0.168 (#4325)
 * v6.0, 2025-05-29, Merge [#4356](https://github.com/ossrs/srs/pull/4356): RTMP: Use extended timestamp as delta when chunk fmt=1/2. v6.0.167 (#4356)
 * v6.0, 2025-03-21, Merge [#4303](https://github.com/ossrs/srs/pull/4303): replace values with enums. v6.0.165 (#4303)
@@ -179,6 +180,7 @@ The changelog for SRS.
 <a name="v5-changes"></a>
 
 ## SRS 5.0 Changelog
+* v5.0, 2025-07-10, Merge [#4414](https://github.com/ossrs/srs/pull/4414): Fix H.264 B-frame detection logic to comply with specification. v5.0.224 (#4414)
 * v5.0, 2025-03-21, Merge [#4303](https://github.com/ossrs/srs/pull/4303): replace values with enums. v5.0.223 (#4303)
 * v5.0, 2025-03-20, Merge [#4305](https://github.com/ossrs/srs/pull/4305): free sample to prevent memory leak. v5.0.222 (#4305)
 * v5.0, 2025-03-18, Merge [#4302](https://github.com/ossrs/srs/pull/4302): update geekyeggo/delete-artifact to 5.0.0. v5.0.221 (#4302)
diff --git a/trunk/src/core/srs_core_version5.hpp b/trunk/src/core/srs_core_version5.hpp
index 489043499..219653f3a 100644
--- a/trunk/src/core/srs_core_version5.hpp
+++ b/trunk/src/core/srs_core_version5.hpp
@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       5
 #define VERSION_MINOR       0
-#define VERSION_REVISION    223
+#define VERSION_REVISION    224
 
 #endif
diff --git a/trunk/src/core/srs_core_version6.hpp b/trunk/src/core/srs_core_version6.hpp
index cc7d160e2..d7db085e5 100644
--- a/trunk/src/core/srs_core_version6.hpp
+++ b/trunk/src/core/srs_core_version6.hpp
@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       6
 #define VERSION_MINOR       0
-#define VERSION_REVISION    168
+#define VERSION_REVISION    169
 
 #endif
diff --git a/trunk/src/kernel/srs_kernel_codec.cpp b/trunk/src/kernel/srs_kernel_codec.cpp
index ba0257382..63d10041a 100644
--- a/trunk/src/kernel/srs_kernel_codec.cpp
+++ b/trunk/src/kernel/srs_kernel_codec.cpp
@@ -725,7 +725,8 @@ srs_error_t SrsVideoFrame::parse_avc_b_frame(const SrsSample* sample, bool& is_b
         return srs_error_wrap(err, "parse avc nalu type error");
     }
 
-    if (nalu_type != SrsAvcNaluTypeNonIDR && nalu_type != SrsAvcNaluTypeDataPartitionA && nalu_type != SrsAvcNaluTypeIDR) {
+    if (nalu_type != SrsAvcNaluTypeNonIDR && nalu_type != SrsAvcNaluTypeDataPartitionA 
+        && nalu_type != SrsAvcNaluTypeDataPartitionB && nalu_type != SrsAvcNaluTypeDataPartitionC) {
         is_b_frame = false;
         return err;
     }