diff --git a/trunk/doc/CHANGELOG.md b/trunk/doc/CHANGELOG.md
index 24887fb73..e8c84c3c8 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, 2026-05-19, Merge [#4678](https://github.com/ossrs/srs/pull/4678): Edge: Fix RTMP late-join missing sequence headers. v6.0.186 (#4678)
 * v6.0, 2025-12-06, Merge [#4605](https://github.com/ossrs/srs/pull/4605): DVR: Fix HEVC mp4 recording error. v6.0.185 (#4605)
 * v6.0, 2025-12-03, Merge [#4588](https://github.com/ossrs/srs/pull/4588): RTMP: Ignore FMLE start packet after flash publish. v6.0.184 (#4588)
 * v6.0, 2025-10-21, Merge [#4535](https://github.com/ossrs/srs/issues/4535): Bridge: Fix heap-use-after-free in SrsCompositeBridge iterator. v6.0.183 (#4535)
diff --git a/trunk/src/app/srs_app_source.cpp b/trunk/src/app/srs_app_source.cpp
index 18b62f27a..8066f9f89 100755
--- a/trunk/src/app/srs_app_source.cpp
+++ b/trunk/src/app/srs_app_source.cpp
@@ -2721,7 +2721,10 @@ srs_error_t SrsLiveSource::consumer_dumps(SrsLiveConsumer* consumer, bool ds, bo
     }
 
     // If stream is publishing, dumps the sequence header and gop cache.
-    bool hub_active = hub ? hub->active() : false;
+    // On edge, hub is NULL; the source is "publishing" once the edge-pull has
+    // populated the meta cache. Late-joining consumers must still receive the
+    // cached metadata + sequence headers + GOP via this path.
+    bool hub_active = hub ? hub->active() : (meta->data() || meta->vsh() || meta->ash());
     if (hub_active) {
         // Copy metadata and sequence header to consumer.
         if ((err = meta->dumps(consumer, atc, jitter_algorithm, dm, ds)) != srs_success) {
diff --git a/trunk/src/core/srs_core_version6.hpp b/trunk/src/core/srs_core_version6.hpp
index daddadf0c..def6a117f 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 185
+#define VERSION_REVISION 186
 
 #endif