diff --git a/include/mcl/op.hpp b/include/mcl/op.hpp
index 096c613..13fd0c5 100644
--- a/include/mcl/op.hpp
+++ b/include/mcl/op.hpp
@@ -26,7 +26,7 @@
 
 namespace mcl {
 
-static const int version = 0x135; /* 0xABC = A.BC */
+static const int version = 0x136; /* 0xABC = A.BC */
 
 /*
 	specifies available string format mode for X::setIoMode()
diff --git a/readme.md b/readme.md
index f557f75..a134584 100644
--- a/readme.md
+++ b/readme.md
@@ -10,6 +10,7 @@ mcl is a library for pairing-based cryptography,
 which supports the optimal Ate pairing over BN curves and BLS12-381 curves.
 
 # News
+- improve performance
 - support M1 mac
 - dst for mapToG1 has changed to `BLS_SIG_BLS12381G1_XMD:SHA-256_SSWU_RO_POP_`.
 - `mclBn_eth*` functions are removed.