diff --git a/CHANGELOG.md b/CHANGELOG.md
index 02afac6..5c50985 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,30 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.1.0] - 2021-03-12
+
+### Added
+
+- Toggle for inclusion of glossaries in the Table of Contents (ToC) (5c23bd0)
+- Example for an appendix (d4a42ce)
+- Translations for code listings in references, lists, captions (6148d55)
+- ARCHITECTURE document (840eff8)
+- Example for a `longtabu` (multi-page table) displaying random data generated by custom Lua script (9e89214)
+- Section on alternative ways to compile (f2d550d)
+- Configuration and ideal setup for working with this template inside Visual Studio Code, using its native container development environment (38a0bb2)
+- Example for a new unit specification using `siunitx` (7a2d0d0)
+
+### Changed
+
+- Switched bibliography generation from vanilla Zotero to Zotero with its excellent **Better Bibtex** addon (a05f5f4)
+- Fixed biblatex fields according to `biber --validate-datamodel` validation (eb068bd)
+- Fixed using a system directory for `pandoc`, which required `sudo` privileges (no just user privileges) (d8f4c1c)
+
+### Removed
+
+- TeXGyrePagella font files: use those included in the TeX distribution itself (d74c2d9)
+- Trailing whitespaces (WOW!) (d766fb6)
+
 ## [3.0.0] - 2021-02-03
 
 ### Added
diff --git a/cookbook.cls b/cookbook.cls
index 5099df9..25bcfb9 100644
--- a/cookbook.cls
+++ b/cookbook.cls
@@ -11,7 +11,7 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 % Refer to https://www.overleaf.com/learn/latex/Writing_your_own_class
 \NeedsTeXFormat{LaTeX2e}
-\ProvidesClass{cookbook}[2021-02-03 v3.0.0 cookbook class]
+\ProvidesClass{cookbook}[2021-03-12 v3.1.0 cookbook class]
 
 % Fail early and give useful information on the required engine.
 % This helps users who do not read the documentation beforehand, by promoting the
diff --git a/tests/pyproject.toml b/tests/pyproject.toml
index f9d5b05..9b81750 100644
--- a/tests/pyproject.toml
+++ b/tests/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "tests"
-version = "3.0.0"
+version = "3.1.0"
 description = "Checks for PDFs."
 authors = ["Alex Povel <alex.povel@tuhh.de>"]