diff --git a/doc/en/Developer/Development_history.md b/doc/en/Developer/Development_history.md
index 373621810f..950c3683cd 100644
--- a/doc/en/Developer/Development_history.md
+++ b/doc/en/Developer/Development_history.md
@@ -2,6 +2,12 @@
 
 For current and future plans, see [Development track](Development_track.md) and [Future plans](Future_plans.md).
 
+## Version 4.8.1
+
+Released November 2024.
+
+Rename directories and files in the STACK library to avoid problems with the auto-generated .zip file.
+
 ## Version 4.8.0
 
 Released November 2024.
diff --git a/stack/maxima/stackmaxima.mac b/stack/maxima/stackmaxima.mac
index 43c562f8a6..29c7e49aef 100644
--- a/stack/maxima/stackmaxima.mac
+++ b/stack/maxima/stackmaxima.mac
@@ -3357,4 +3357,4 @@ is_lang(code):=ev(is(%_STACK_LANG=code),simp=true)$
 
 /* Stack expects some output with the version number the output happens at */
 /* maximalocal.mac after additional library loading */
-stackmaximaversion:2024111500$
+stackmaximaversion:2024111900$
diff --git a/version.php b/version.php
index 84e421f5aa..51580b2b07 100644
--- a/version.php
+++ b/version.php
@@ -24,12 +24,12 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$plugin->version   = 2024111500;
+$plugin->version   = 2024111900;
 $plugin->requires  = 2022041900;
 $plugin->cron      = 0;
 $plugin->component = 'qtype_stack';
 $plugin->maturity  = MATURITY_STABLE;
-$plugin->release   = '4.8.0 for Moodle 4.0+';
+$plugin->release   = '4.8.1 for Moodle 4.0+';
 
 $plugin->dependencies = [
     'qbehaviour_adaptivemultipart'     => 2020103000,