diff --git a/UPGRADING.md b/UPGRADING.md
index fda762b9fb9..3dd93ad96ce 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -41,6 +41,14 @@ The format of this change log follows the advice given at [Keep a CHANGELOG](htt
 
   For more information see [MDL-86311](https://tracker.moodle.org/browse/MDL-86311)
 
+### theme_boost
+
+#### Added
+
+- Tables affected by unwanted styling (e.g., borders) from the reset of Bootstrap _reboot.scss styles can now opt out and preserve the original behavior by adding the styleless .table-reboot class.
+
+  For more information see [MDL-86548](https://tracker.moodle.org/browse/MDL-86548)
+
 ## 5.0.2
 
 ### core
diff --git a/theme/boost/UPGRADING.md b/theme/boost/UPGRADING.md
index 9e4b03ea707..45dfe19d8d2 100644
--- a/theme/boost/UPGRADING.md
+++ b/theme/boost/UPGRADING.md
@@ -1,5 +1,13 @@
 # theme_boost Upgrade notes
 
+## 5.0.2+
+
+### Added
+
+- Tables affected by unwanted styling (e.g., borders) from the reset of Bootstrap _reboot.scss styles can now opt out and preserve the original behavior by adding the styleless .table-reboot class.
+
+  For more information see [MDL-86548](https://tracker.moodle.org/browse/MDL-86548)
+
 ## 5.0
 
 ### Changed