diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 35fb7b99a..77b3b8154 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -17,6 +17,10 @@ Unreleased
 ----------
 * nothing unreleased
 
+[4.28.1]
+--------
+* feat: making to-be-deleted model field nullable
+
 [4.28.0]
 --------
 * feat: add default enrollment models
diff --git a/enterprise/__init__.py b/enterprise/__init__.py
index 495986fe5..49318e874 100644
--- a/enterprise/__init__.py
+++ b/enterprise/__init__.py
@@ -2,4 +2,4 @@
 Your project description goes here.
 """
 
-__version__ = "4.28.0"
+__version__ = "4.28.1"
diff --git a/enterprise/migrations/0224_alter_enterprisegroup_applies_to_all_contexts_and_more.py b/enterprise/migrations/0224_alter_enterprisegroup_applies_to_all_contexts_and_more.py
new file mode 100644
index 000000000..c18ec10ef
--- /dev/null
+++ b/enterprise/migrations/0224_alter_enterprisegroup_applies_to_all_contexts_and_more.py
@@ -0,0 +1,23 @@
+# Generated by Django 4.2.16 on 2024-10-18 15:43
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('enterprise', '0223_default_enrollments'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='enterprisegroup',
+            name='applies_to_all_contexts',
+            field=models.BooleanField(default=False, help_text='When enabled, all learners connected to the org will be considered a member.', null=True, verbose_name='Set group membership to the entire org of learners.'),
+        ),
+        migrations.AlterField(
+            model_name='historicalenterprisegroup',
+            name='applies_to_all_contexts',
+            field=models.BooleanField(default=False, help_text='When enabled, all learners connected to the org will be considered a member.', null=True, verbose_name='Set group membership to the entire org of learners.'),
+        ),
+    ]