diff --git a/CHANGES b/CHANGES
index 343d5aac..d1b0240f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -4,6 +4,14 @@ at https://github.com/ygrek/mldonkey/issues
 Changelog
 =========
 
+3.1.7 - 2020/06/21
+
+* improvements to build process
+* fix build with OCaml up to 4.09.0
+* BT: drop isoHunt link
+
+NB When building with OCaml >= 4.06 and Bittorrent network enabled - ocaml num library has to be present
+
 3.1.6 - 2017/01/22
 ------------------
 
diff --git a/config/configure.in b/config/configure.in
index f61b1cd2..8c68b4ec 100644
--- a/config/configure.in
+++ b/config/configure.in
@@ -22,7 +22,7 @@ cd config
 
 MAJOR_VERSION=3
 MINOR_VERSION=1
-SUB_VERSION=6   # range 0-7 due to eMule limitations
+SUB_VERSION=7   # range 0-7 due to eMule limitations
 
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