diff --git a/hledger/hledger.m4.md b/hledger/hledger.m4.md
index 36cce89a9..b5fa694fa 100644
--- a/hledger/hledger.m4.md
+++ b/hledger/hledger.m4.md
@@ -3329,6 +3329,7 @@ The following encodings are supported
 `cp874`,
 `cp932`.
 
+*Added in 1.42.*
 
 ## `separator`