diff --git a/include/qpdf/QPDFObjectHandle.hh b/include/qpdf/QPDFObjectHandle.hh
index 147d508..80bd797 100644
--- a/include/qpdf/QPDFObjectHandle.hh
+++ b/include/qpdf/QPDFObjectHandle.hh
@@ -1206,11 +1206,6 @@ class QPDFObjectHandle
     void writeJSON(
         int json_version, Pipeline* p, bool dereference_indirect = false, size_t depth = 0) const;
 
-    // Deprecated version uses v1 for backward compatibility.
-    // ABI: remove for qpdf 12
-    [[deprecated("Use getJSON(int version)")]] QPDF_DLL JSON
-    getJSON(bool dereference_indirect = false) const;
-
     // This method can be called on a stream to get a more extended JSON representation of the
     // stream that includes the stream's data. The JSON object returned is always a dictionary whose
     // "dict" key is an encoding of the stream's dictionary. The representation of the data is
diff --git a/libqpdf/QPDFObjectHandle.cc b/libqpdf/QPDFObjectHandle.cc
index b933641..6fd62f2 100644
--- a/libqpdf/QPDFObjectHandle.cc
+++ b/libqpdf/QPDFObjectHandle.cc
@@ -1615,13 +1615,6 @@ QPDFObjectHandle::unparseBinary() const
     }
 }
 
-// Deprecated versionless getJSON to be removed in qpdf 12
-JSON
-QPDFObjectHandle::getJSON(bool dereference_indirect) const
-{
-    return getJSON(1, dereference_indirect);
-}
-
 JSON
 QPDFObjectHandle::getJSON(int json_version, bool dereference_indirect) const
 {
diff --git a/manual/release-notes.rst b/manual/release-notes.rst
index fd55ac6..efc6e71 100644
--- a/manual/release-notes.rst
+++ b/manual/release-notes.rst
@@ -11,6 +11,9 @@ For a detailed list of changes, please see the file
 12.0.0: not yet released
   - API: breaking changes
 
+    - Deprecated versionless overload of ``QPDFObjectHandle::getJSON``
+      has been removed.
+
     - ``Buffer`` copy constructor and assignment operator have been
       removed. ``Buffer`` copy operations are expensive as they always
       involve copying the buffer content. Use ``buffer2 = buffer1.copy();``