diff --git a/SC2039.md b/SC2039.md
index ec2f7bb..f762f37 100644
--- a/SC2039.md
+++ b/SC2039.md
@@ -285,6 +285,12 @@ nohup <command>
 Note that while `nohup` can be used to achieve the same result, their semantics is different.
 Also note that `nohup` will, by default, redirect input and output.
 
+## Errors with changed codes
+
+Some errors, currently having their own pages, were linked to this page in older ShellCheck versions.
+
+- [SC3026: In POSIX sh, `^` in place of `!` in glob bracket expressions is undefined.](SC3026)
+
 ## Exception
 
 Depends on what your expected POSIX shell providers would use.