diff --git a/CHANGES.md b/CHANGES.md
new file mode 100644
index 0000000..670fc60
--- /dev/null
+++ b/CHANGES.md
@@ -0,0 +1,51 @@
+1.4 2020-07-03
+
+  * Add `--output-format` command line argument to specify the output format.
+  * Add automatic detection of output format from output file name.
+  * Add CSV output format.
+  * Add `--no-filter` command line argument to prevent filtering of
+    architecture-specific code that looks like it already has an aarch64
+    equivalent.
+  * Distinguish AVX-256 and AVX-512 intrinsics from other intrinsics.
+  * Fix issue where not all issue types showed up in `--help` output.
+
+1.3 2019-01-25
+
+  * Count the number of inline assembly or intrinsics with aarch64 equivalents
+    more reliably.
+  * Fix parsing of function definitions with a return type split across multiple
+    lines.
+  * Extend the function parsing to support C++ method definitions.
+  * Include the issue / remark type in the JSON output.
+
+1.2 2018-04-20
+
+  * Add x64 to non-aarch64 architecture strings.
+  * Add detection of two cross-compile specific issues.
+  * Add function / macro name to source file issues.
+  * Add issue type filter command line option.
+  * Add `--target-os` command line option.
+  * Add progress bar during scanning.
+  * Detect hard-coded architecture defines in `Makefile`s (e.g. `-DOTHERARCH`).
+  * Detect use of old Visual C++ runtime (Windows on Arm specific).
+  * Detect functions that use intrinsics or inline assembly on other
+    architectures, but not on Arm.
+  * Do not report `_fxstat` as an intrinsic.
+  * Fix an exception caused by malformed preprocessor directives.
+  * Ignore charset decoding errors in source files.
+  * Ignore source file issues in comments.
+  * Scan macro bodies for intrinsics and inline assembly.
+
+1.1 2018-02-21
+
+  * Fix error message when source tree root directory not found.
+  * Add missing preprocessor support for `#ifndef`.
+  * Report negative items before neutral items.
+  * Ignore version control blobs.
+  * Fix condition for reporting `#error` to ignore non-architecture specific macros.
+  * Include the base name of the source tree root directory in the header of the HTML report.
+  * Fix missing icons in the HTML report.
+
+1.0 2017-12-21
+
+  * Initial release.
diff --git a/src/advisor/__init__.py b/src/advisor/__init__.py
index 94a853a..7a4479e 100644
--- a/src/advisor/__init__.py
+++ b/src/advisor/__init__.py
@@ -17,7 +17,7 @@
 """
 
 __project__ = 'porting-advisor'
-__version__ = '1.3'
+__version__ = '1.4'
 __summary__ = 'Produces an aarch64 porting readiness report.'
 __webpage__ = 'http://www.gitlab.com/arm-hpc/porting-advisor'