assets/stylesheets/bootstrap/mixins/_forms.scss in bootstrap-4.1.0 vs assets/stylesheets/bootstrap/mixins/_forms.scss in bootstrap-4.1.1

@@ -66,9 +66,19 @@
         display: block;
       }
     }
   }
 
+  .form-control-file {
+    .was-validated &:#{$state},
+    &.is-#{$state} {
+      ~ .#{$state}-feedback,
+      ~ .#{$state}-tooltip {
+        display: block;
+      }
+    }
+  }
+
   .form-check-input {
     .was-validated &:#{$state},
     &.is-#{$state} {
       ~ .form-check-label {
         color: $color;