Add None/Any options for assignee in search bar

2 files changed, 10 insertions, 0 deletions

diff --git a/doc/user/search/img/issues_filter_none_any.png b/doc/user/search/img/issues_filter_none_any.png
new file mode 100644
index 00000000000..9682fc55315
--- /dev/null
+++ b/doc/user/search/img/issues_filter_none_any.png
diff --git a/doc/user/search/index.md b/doc/user/search/index.md
index 4f1b96b775c..3f9d07dacaa 100644
--- a/doc/user/search/index.md
+++ b/doc/user/search/index.md
@@ -40,6 +40,16 @@ The same process is valid for merge requests. Navigate to your project's **Merge
 and click **Search or filter results...**. Merge requests can be filtered by author, assignee,
 milestone, and label.
 
+### Filtering by **None** / **Any**
+
+Some filter fields like milestone and assignee, allow you to filter by **None** or **Any**.
+
+![filter by none any](img/issues_filter_none_any.png)
+
+Selecting **None** returns results that have an empty value for that field. E.g.: no milestone, no assignee.
+
+Selecting **Any** does the opposite. It returns results that have a non-empty value for that field.
+
 ### Searching for specific terms
 
 You can filter issues and merge requests by specific terms included in titles or descriptions.