diff --git a/revision_history.txt b/revision_history.txt
index 76f86c6..c89248a 100644
--- a/revision_history.txt
+++ b/revision_history.txt
@@ -521,4 +521,8 @@ hack when it's hom
 2019-08 @Vertmo improvement on generation of lexer and parser
         (metavars at end, sort tokens, precise OCaml type, update location nl)
 
+2019-08 @rmn30 install menhir_library_extra.mly
+
+2019-08 @hannesm update opam file to 2.0
+
 2019-08-01 Version 0.29