diff --git a/src/cmake/projectVersionDetails.cmake b/src/cmake/projectVersionDetails.cmake
index f71bec52f..85adf450a 100644
--- a/src/cmake/projectVersionDetails.cmake
+++ b/src/cmake/projectVersionDetails.cmake
@@ -2,4 +2,4 @@
 # setting the project version. The variable name must not
 # clash with the log4cxx_VERSION* variables automatically
 # defined by the project() command.
-set(log4cxx_VER 1.3.1.0)
+set(log4cxx_VER 1.4.0.0)
diff --git a/src/site/markdown/change-report-gh.md b/src/site/markdown/change-report-gh.md
index 6617001b7..587a984f7 100644
--- a/src/site/markdown/change-report-gh.md
+++ b/src/site/markdown/change-report-gh.md
@@ -25,6 +25,7 @@ Change Log {#changelog}
 
 | Version             | Date       | Description          |
 | ------------------- | ---------- | -------------------- |
+| [1.4.0](#rel_1_4_0) | 2025-XX-XX |                      |
 | [1.3.1](#rel_1_3_1) | 2024-11-30 | Bugfix release       |
 | [1.3.0](#rel_1_3_0) | 2024-10-21 | Maintenance release  |
 | [1.2.0](#rel_1_2_0) | 2024-01-01 | Maintenance release  |
@@ -47,6 +48,17 @@ Change Log {#changelog}
 | [0.1.0](#rel_1_0)   | 2003-07-08 |                      |
 | [0.0.1](#rel_0_1)   | 2003-05-31 |                      |
 
+## Release 1.4.0 - 2025-XX-XX {#rel_1_4_0}
+
+Release 1.4.0 includes the following new features:
+
+* Buffered file output is now periodically flushed by a background thread
+   \[[#445](https://github.com/apache/logging-log4cxx/pull/445)\]
+
+The following issues have been addressed:
+
+* The MultiprocessRollingFileAppender did not work
+   \[[#439](https://github.com/apache/logging-log4cxx/issues/439)\]
 
 ## Release 1.3.1 - 2024-11-30 {#rel_1_3_1}
 
diff --git a/src/site/markdown/download.md.in b/src/site/markdown/download.md.in
index 1d28c9b33..cc4312824 100644
--- a/src/site/markdown/download.md.in
+++ b/src/site/markdown/download.md.in
@@ -56,6 +56,7 @@ in many unix distributions.
 
 | Version                  | Release Date |
 | :--------------------------: |  :----------------------:   |
+| [1.3.1](${LOG4CXX_DOCUMENTATION_URL}/1.3.1/download.html) | Nov-2024 |
 | [1.2.0](${LOG4CXX_DOCUMENTATION_URL}/1.2.0/download.html) | Jan-2024 |
 | [1.1.0](${LOG4CXX_DOCUMENTATION_URL}/1.1.0/download.html) | May-2023 |
 | [1.0.0](${LOG4CXX_DOCUMENTATION_URL}/1.0.0/download.html) | Jan-2023 |