diff --git a/CHANGELOG.md b/CHANGELOG.md
index 44f9e6a..32bdced 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,13 @@ and this project adheres to
 
 ## [Unreleased]
 
+## [v4.0.1] – 2024–05–17
+
+### Fixed
+
+- Updated copyright years.
+- Add the missing `colormode` option `bw` to `se2colors`.
+
 ## [v4.0.0] – 2024–05–08
 
 ### Changed
@@ -196,7 +203,8 @@ These changes might be breaking changes!
 ### Added
 - First official release
 
-[Unreleased]: https://github.com/se2p/se2thesis/compare/v4.0.0...HEAD
+[Unreleased]: https://github.com/se2p/se2thesis/compare/v4.0.1...HEAD
+[v4.0.1]: https://github.com/se2p/se2thesis/compare/v4.0.1...v4.0.0
 [v4.0.0]: https://github.com/se2p/se2thesis/compare/v4.0.0...v3.4.0
 [v3.4.0]: https://github.com/se2p/se2thesis/compare/v3.4.0...v3.3.1
 [v3.3.1]: https://github.com/se2p/se2thesis/compare/v3.3.1...v3.3.0
diff --git a/examples/se2thesis-master-thesis-example.pdf b/examples/se2thesis-master-thesis-example.pdf
index ce333a9..957e0b5 100644
Binary files a/examples/se2thesis-master-thesis-example.pdf and b/examples/se2thesis-master-thesis-example.pdf differ
diff --git a/se2colors.dtx b/se2colors.dtx
index 706666b..ccea678 100644
--- a/se2colors.dtx
+++ b/se2colors.dtx
@@ -231,7 +231,7 @@
 %
 % Identify the package and give the overall version information.
 %    \begin{macrocode}
-\ProvidesExplPackage {se2colors} {2024-05-08} {4.0.0}
+\ProvidesExplPackage {se2colors} {2024-05-17} {4.0.1}
   {A colour support package for the se2thesis bundle}
 %    \end{macrocode}
 %
@@ -259,10 +259,13 @@
     cmode / cmyk .meta:n = {cmode=4C},
     cmode / rgb .meta:n = {cmode=RGB},
     cmode / gray .meta:n = {cmode=BW},
+    cmode / bw .meta:n = {cmode=BW},
     RGB .meta:n = {cmode=RGB},
     rgb .meta:n = {cmode=RGB},
     CMYK .meta:n = {cmode=4C},
     cmyk .meta:n = {cmode=4C},
+    BW .meta:n = {cmode=BW},
+    bw .meta:n = {cmode=BW},
     gray .meta:n = {cmode=BW},
   }
 \keys_set:nn { seiicolors } { cmode = 4C }
diff --git a/se2fonts.dtx b/se2fonts.dtx
index f378227..741478e 100644
--- a/se2fonts.dtx
+++ b/se2fonts.dtx
@@ -151,7 +151,7 @@
 %
 % Identify the package and give the overall version information.
 %    \begin{macrocode}
-\ProvidesExplPackage {se2fonts} {2024-05-08} {4.0.0}
+\ProvidesExplPackage {se2fonts} {2024-05-17} {4.0.1}
   {A font-selection support package for the se2thesis bundle}
 %    \end{macrocode}
 %
diff --git a/se2packages.dtx b/se2packages.dtx
index 4511d0c..4c28b13 100644
--- a/se2packages.dtx
+++ b/se2packages.dtx
@@ -443,7 +443,7 @@
 %
 % Identify the package and give the overall version information.
 %    \begin{macrocode}
-\ProvidesExplPackage {se2packages} {2024-05-08} {4.0.0}
+\ProvidesExplPackage {se2packages} {2024-05-17} {4.0.1}
   {Supporting packages for the se2thesis bundle}
 %    \end{macrocode}
 %
diff --git a/se2thesis.dtx b/se2thesis.dtx
index 4c36e5c..ced3b91 100644
--- a/se2thesis.dtx
+++ b/se2thesis.dtx
@@ -607,7 +607,7 @@
 %
 % Identify the class and give the overall version number.
 %    \begin{macrocode}
-\ProvidesExplClass {se2thesis} {2024-05-08} {4.0.0}
+\ProvidesExplClass {se2thesis} {2024-05-17} {4.0.1}
   {A thesis class for the Chair of Software Engineering II}
 %    \end{macrocode}
 %
@@ -1655,7 +1655,7 @@
 % We provide the following English translations.
 %
 %    \begin{macrocode}
-\ProvideDictionaryFor{English}{se2translations}[2024/05/08]
+\ProvideDictionaryFor{English}{se2translations}[2024/05/17]
 \ProvideDictTranslation{abstract}{abstract}
 \ProvideDictTranslation{Abstract}{Abstract}
 \ProvideDictTranslation{acknowledgement}{acknowledgement}
@@ -1706,7 +1706,7 @@
 % We provide the following German translations.
 %
 %    \begin{macrocode}
-\ProvideDictionaryFor{German}{se2translations}[2024/05/08]
+\ProvideDictionaryFor{German}{se2translations}[2024/05/17]
 \ProvideDictTranslation{abstract}{Zusammenfassung}
 \ProvideDictTranslation{Abstract}{Zusammenfassung}
 \ProvideDictTranslation{acknowledgement}{Danksagung}