diff --git a/change_log.md b/change_log.md
new file mode 100644
index 0000000000000000000000000000000000000000..e23b95fdebc174d98a6cb3f44a253d231a7ef9e2
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+++ b/change_log.md
@@ -0,0 +1,63 @@
+SCP-firmware Change Log
+=======================
+
+Copyright (c) 2019, Arm Limited and Contributors. All rights reserved.
+
+SCP-firmware - version 2.4.0
+============================
+
+New features
+------------
+
+- Module-based architecture with an event-driven execution model:
+    - Firmware code is organized into modules, where a module fulfills a well-
+      defined role (driver HAL, driver, protocol or service).
+    - A framework drives the initialization, orchestration of, and interactions
+      between modules.
+
+- Processor-agnostic module code enables firmware portability across systems:
+    - Processor-dependent features (e.g. interrupt handling) are abstracted from
+      the modules by the framework.
+    - The framework relies on an interface whose implementation is processor-
+      dependent to provide these features.
+
+- Module configurability easing the re-use of modules on different platforms:
+    - Strict split between the hardware and software feature configuration data
+      and module code.
+
+- A native framework test suite provides rapid development and validation of the
+  core framework implementation.
+
+- Support for Armv7-M control processor architecture based on CMSIS v5 and Keil
+  RTX 5.
+
+- Provides system initialization support to enable boot of the application
+  cores.
+
+- Provides the following runtime services:
+    - Power domain management
+    - System power management
+    - Performance domain management (Dynamic voltage and frequency scaling)
+    - Clock management
+    - Sensor management
+
+- Provides a reference implementation of the System Control and Management
+  Interface v1.0 (SCMI, platform-side). The SCMI specification can be found
+  [here](http://infocenter.arm.com/help/topic/com.arm.doc.den0056a/DEN0056A_System_Control_and_Management_Interface.pdf).
+
+- Provides a build system supporting:
+    - The GNU Arm Embedded and Arm Compiler 6 toolchains
+    - Platforms with multiple firmware images
+
+- In-source Doxygen documentation
+
+- Support for the SGM-775 platform
+
+Known issues
+------------
+
+- The build system does not configure the compiler to avoid code generation of
+  unaligned accesses. As ARMv7-M targets are configured to trap on unaligned
+  word or halfword accesses, this can result in hardware exceptions.
+  [This patch](https://github.com/ARM-software/SCP-firmware/commit/d2a77e0d4d0d369f7504c032a380578a4d145438)
+  fixes this issue.
diff --git a/doc/config.dxy b/doc/config.dxy
index a03d07279b5e8ef1792bbc749fdcb9cbc64e3971..ae6ebd10465cec8fd2bdcca14d364550b0b8d6ff 100644
--- a/doc/config.dxy
+++ b/doc/config.dxy
@@ -114,6 +114,7 @@ WARN_LOGFILE           =
 INPUT                  = $(TOP_DIR)/readme.md \
                          $(TOP_DIR)/license.md \
                          $(TOP_DIR)/user_guide.md \
+                         $(TOP_DIR)/change_log.md \
                          $(BS_DIR)/doc.md \
                          $(DOC_DIR)/code_style.md \
                          $(DOC_DIR)/framework.md \
diff --git a/readme.md b/readme.md
index 4e5b4b7e2197fbb343e56afafdf90e5ec813e0f2..8233d308fd365dfebb163c7635ba5304a1491774 100644
--- a/readme.md
+++ b/readme.md
@@ -40,10 +40,12 @@ Functionality
 -------------
 
 - Initialization of the system to enable application core boot
-- Power domain management
-- System power management
-- Dynamic voltage and frequency scaling (DVFS)
-- Sensor management
+- Runtime services:
+    - Power domain management
+    - System power management
+    - Performance domain management (Dynamic voltage and frequency scaling)
+    - Clock management
+    - Sensor management
 - System Control and Management Interface (SCMI, platform-side)
 - Support for the GNU Arm Embedded and Arm Compiler 6 toolchains
 - Support for platforms with several control processors