Docs: DOC-3243 - Now link dialog allows uploading empty files (#4022)

Author: kemister85

modules/ROOT/pages/8.4.0-release-notes.adoc

@@ -293,6 +293,13 @@ In {productname} {release-version}, a check was added to prevent compression whe
 
 // CCFR here.
 
+=== Now `link` dialog allows uploading empty files
+// #TINY-13421
+
+Previously, when uploading an empty file through the link dialog's upload tab, the conversion to `BlobInfo` failed and returned a generic, cryptic error about blob and base64 encoding. As a result, users could not understand what caused the failure or how to resolve it.
+
+In {productname} {release-version}, empty file uploads are now handled by the link dialog itself, which displays a clear, user-friendly error message when an empty file is selected. Users receive a specific error that explains the issue instead of a generic conversion error.
+
 === Toggling lists cause selection issues
 // #TINY-13213