diff --git a/HISTORY.rst b/HISTORY.rst
index e4a0f35d..5bacdbfb 100755
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -1,6 +1,13 @@
 History
 =======
 
+Release 0.10.21
+---------------
+
+* More exception resistance in cartesian_tournament
+* Base Mechanism class now can ignore exceptions in initialization of agents
+* More consistent naming of methods involving negotiators
+
 Release 0.10.20
 ---------------
 
diff --git a/VERSION b/VERSION
index 566871cb..e831019f 100755
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.10.20
+0.10.21
diff --git a/docs/conf.py b/docs/conf.py
index 06f0d063..9b295c14 100755
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -94,7 +94,7 @@
 # the built documents.
 #
 # The short X.Y version.
-version = "0.10.20"
+version = "0.10.21"
 # The full version, including alpha/cost/rc tags.
 release = version
 
diff --git a/negmas/__init__.py b/negmas/__init__.py
index bc5bcec8..983f3ad9 100755
--- a/negmas/__init__.py
+++ b/negmas/__init__.py
@@ -4,7 +4,7 @@
 
 __author__ = """Yasser Mohammad"""
 __email__ = "yasserfarouk@gmail.com"
-__version__ = "0.10.20"
+__version__ = "0.10.21"
 
 
 from .config import *
diff --git a/setup.cfg b/setup.cfg
index 7340f8dc..bf8734d2 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,12 +1,12 @@
 [bumpversion]
-current_version = 0.10.20
+current_version = 0.10.21
 delete_bookmark = True
 commit = False
 tag = False
 
 [metadata]
 name = negmas
-version = 0.10.20
+version = 0.10.21
 author = Yasser Mohammad
 author_email = yasserfarouk@gmail.com
 description = NEGotiations Managed by Agent Simulations