diff --git a/docs/reference/mapping/fields/boost-field.asciidoc b/docs/reference/mapping/fields/boost-field.asciidoc
index 714b5c83bb1ab..453200ffa581f 100644
--- a/docs/reference/mapping/fields/boost-field.asciidoc
+++ b/docs/reference/mapping/fields/boost-field.asciidoc
@@ -68,3 +68,5 @@ any field the document:
 <1> The original query, now wrapped in a `function_score` query.
 <2> This function returns the value in `my_boost_field`, which is then
     multiplied by the query `_score` for each document.
+
+Note, that `field_value_factor` is a 1.2.x feature.
diff --git a/docs/reference/query-dsl/queries/function-score-query.asciidoc b/docs/reference/query-dsl/queries/function-score-query.asciidoc
index 46163c766090a..1936fe58a3b5e 100644
--- a/docs/reference/query-dsl/queries/function-score-query.asciidoc
+++ b/docs/reference/query-dsl/queries/function-score-query.asciidoc
@@ -151,6 +151,9 @@ that is initialized with a `seed`.
 --------------------------------------------------
 
 ===== Field Value factor
+
+added[1.2.0]
+
 The `field_value_factor` function allows you to use a field from a document to
 influence the score. It's similar to using the `script_score` function, however,
 it avoids the overhead of scripting. If used on a multi-valued field, only the