diff --git a/.gitignore b/.gitignore
index 67144ab1..64ac19ad 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,4 +10,4 @@ dist
 venv/
 desktop.ini
 thumbs.db
-
+temp/
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 2231db45..fb30e227 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,6 +1,16 @@
 # Change Log
 
-## [0.3](https://github.com/formatc1702/WireViz/tree/v0.3) (202X-XX-XX)
+## [0.4](https://github.com/formatc1702/WireViz/tree/v0.4) (20XX-XX-XX)
+
+
+## [0.3.1](https://github.com/formatc1702/WireViz/tree/v0.3.1) (2021-10-25)
+
+### Hotfix
+
+- Assign generic harness title when using WireViz as a module and not specifying an output file name ([#253](https://github.com/formatc1702/WireViz/issues/253), [#254](https://github.com/formatc1702/WireViz/pull/254))
+
+
+## [0.3](https://github.com/formatc1702/WireViz/tree/v0.3) (2021-10-11)
 
 ### New features
 
@@ -9,14 +19,26 @@
 - Add support for length units in cables and wires ([#7](https://github.com/formatc1702/WireViz/issues/7), [#196](https://github.com/formatc1702/WireViz/pull/196) (with work from [#161](https://github.com/formatc1702/WireViz/pull/161), [#162](https://github.com/formatc1702/WireViz/pull/162), [#171](https://github.com/formatc1702/WireViz/pull/171)), [#198](https://github.com/formatc1702/WireViz/pull/198), [#205](https://github.com/formatc1702/WireViz/issues/205). [#206](https://github.com/formatc1702/WireViz/pull/206))
 - Add option to define connector pin colors ([#53](https://github.com/formatc1702/WireViz/issues/53), [#141](https://github.com/formatc1702/WireViz/pull/141))
 - Remove HTML links from the input attributes ([#164](https://github.com/formatc1702/WireViz/pull/164))
+- Add harness metadata section ([#158](https://github.com/formatc1702/WireViz/issues/158), [#214](https://github.com/formatc1702/WireViz/pull/214))
+- Add support for supplier and supplier part number information ([#240](https://github.com/formatc1702/WireViz/issues/240), [#241](https://github.com/formatc1702/WireViz/pull/241/))
+- Add graph rendering options (colors, font, color name display style, ...) ([#158](https://github.com/formatc1702/WireViz/issues/158), [#214](https://github.com/formatc1702/WireViz/pull/214))
+- Add support for background colors for cables and connectors, as well as for some individual cells ([#210](https://github.com/formatc1702/WireViz/issues/210), [#219](https://github.com/formatc1702/WireViz/pull/219))
+- Add optional tweaking of the .gv output ([#215](https://github.com/formatc1702/WireViz/pull/215)) (experimental)
 
 
-## Misc. fixes
+### Misc. fixes
 
+- Remove case-sensitivity issues with pin names and labels ([#160](https://github.com/formatc1702/WireViz/issues/160), [#229](https://github.com/formatc1702/WireViz/pull/229))
 - Improve type hinting ([#156](https://github.com/formatc1702/WireViz/issues/156), [#163](https://github.com/formatc1702/WireViz/pull/163))
 - Move BOM management and HTML functions to separate modules ([#151](https://github.com/formatc1702/WireViz/issues/151), [#192](https://github.com/formatc1702/WireViz/pull/192))
+- Simplify BOM code ([#197](https://github.com/formatc1702/WireViz/pull/197))
 - Bug fixes ([#218](https://github.com/formatc1702/WireViz/pull/218), [#221](https://github.com/formatc1702/WireViz/pull/221))
 
+### Known issues
+
+- Including images in the harness may lead to issues in the following cases: ([#189](https://github.com/formatc1702/WireViz/pull/189), [#220](https://github.com/formatc1702/WireViz/issues/220))
+  - When using the `-o`/`--output_file` CLI option, specifying an output path in a different directory from the input file
+  - When using the `--prepend-file` CLI option, specifying a prepend file in a different directory from the mail input file
 
 ## [0.2](https://github.com/formatc1702/WireViz/tree/v0.2) (2020-10-17)