Update Release info after 2.0.4 released (#15898)

Author: HTHou

RELEASE_NOTES.md

@@ -19,6 +19,28 @@
 
 -->
 
+# Apache IoTDB 2.0.4
+
+## Features & Improvements
+- Data Query: Added user-defined table functions (UDTF) and various built-in table functions to the table model.
+- Data Query: Added support for ASOF INNER JOIN on time columns in the table model.
+- Data Query: Added the approximate aggregation function approx_count_distinct to the table model.
+- Stream Processing: Added support for asynchronous loading of TsFile through SQL.
+- System Management: Added support for disaster recovery load balancing strategy in replica selection during scaling down.
+- System Management: Adapted to Windows Server 2025.
+- Scripts and Tools: Categorized and organized script tools, and separated Windows-specific scripts.
+- ...
+
+## Bugs
+- Fixed the memory leak issue in the WAL compression buffer.
+- Fixed the issue where the async connector gets stuck after running for a long time.
+- Fixed the issue where data subscription cannot be terminated after using data export scripts.
+- Fixed the issue where pipe restarts frequently due to insertnode and resource management memory problems under memory pressure.
+- Fixed the NPE issue triggered during memory statistics estimation on the data synchronization receiver end.
+- Fixed the error when configuring ConsumerConstant.NODE_URLS_KEY as a cluster address while using SubscriptionPullConsumer to consume data.
+- Fixed the deadlock issue on DN startup caused by concurrent agent pipe metadata fetching and CN metadata pushing.
+- ...
+
 # Apache IoTDB 2.0.3
 
 ## Features & Improvements

iotdb-doap.rdf

@@ -61,6 +61,14 @@
     <category rdf:resource="http://projects.apache.org/category/go"/>
     <category rdf:resource="http://projects.apache.org/category/csharp"/>
 
+    <release>
+      <Version>
+        <name>Apache IoTDB</name>
+        <created>2025-07-09</created>
+        <revision>2.0.4</revision>
+      </Version>
+    </release>
+
     <release>
       <Version>
         <name>Apache IoTDB</name>