diff --git a/ChangeLog b/ChangeLog
index 2d101ce0..1454ae55 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -31,6 +31,16 @@ Incompatibility list (compared to v.0.9):
   IPv6-capable now.
 
 
+ver. 0.10.4-dev-1 (20??/??/??) - development edition
+-----------
+
+### Fixes
+
+### New Features
+
+### Enhancements
+
+
 ver. 0.10.3 (2018/04/04) - the-time-is-always-right-to-do-what-is-right
 -----------
 
diff --git a/fail2ban/version.py b/fail2ban/version.py
index 0f36b315..41a32469 100644
--- a/fail2ban/version.py
+++ b/fail2ban/version.py
@@ -24,4 +24,4 @@ __author__ = "Cyril Jaquier, Yaroslav Halchenko, Steven Hiscocks, Daniel Black"
 __copyright__ = "Copyright (c) 2004 Cyril Jaquier, 2005-2016 Yaroslav Halchenko, 2013-2014 Steven Hiscocks, Daniel Black"
 __license__ = "GPL-v2+"
 
-version = "0.10.3"
+version = "0.10.4.dev1"
diff --git a/man/fail2ban-client.1 b/man/fail2ban-client.1
index c4b96650..6ed4ea4c 100644
--- a/man/fail2ban-client.1
+++ b/man/fail2ban-client.1
@@ -1,12 +1,12 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.4.
-.TH FAIL2BAN-CLIENT "1" "April 2018" "fail2ban-client v0.10.3" "User Commands"
+.TH FAIL2BAN-CLIENT "1" "April 2018" "fail2ban-client v0.10.4.dev1" "User Commands"
 .SH NAME
 fail2ban-client \- configure and control the server
 .SH SYNOPSIS
 .B fail2ban-client
 [\fI\,OPTIONS\/\fR] \fI\,<COMMAND>\/\fR
 .SH DESCRIPTION
-Fail2Ban v0.10.3 reads log file that contains password failure report
+Fail2Ban v0.10.4.dev1 reads log file that contains password failure report
 and bans the corresponding IP addresses using firewall rules.
 .SH OPTIONS
 .TP
diff --git a/man/fail2ban-regex.1 b/man/fail2ban-regex.1
index 1d8d7da8..ebc9fa4c 100644
--- a/man/fail2ban-regex.1
+++ b/man/fail2ban-regex.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.4.
-.TH FAIL2BAN-REGEX "1" "April 2018" "fail2ban-regex 0.10.3" "User Commands"
+.TH FAIL2BAN-REGEX "1" "April 2018" "fail2ban-regex 0.10.4.dev1" "User Commands"
 .SH NAME
 fail2ban-regex \- test Fail2ban "failregex" option
 .SH SYNOPSIS
diff --git a/man/fail2ban-server.1 b/man/fail2ban-server.1
index 560bedac..075fb378 100644
--- a/man/fail2ban-server.1
+++ b/man/fail2ban-server.1
@@ -1,12 +1,12 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.4.
-.TH FAIL2BAN-SERVER "1" "April 2018" "fail2ban-server v0.10.3" "User Commands"
+.TH FAIL2BAN-SERVER "1" "April 2018" "fail2ban-server v0.10.4.dev1" "User Commands"
 .SH NAME
 fail2ban-server \- start the server
 .SH SYNOPSIS
 .B fail2ban-server
 [\fI\,OPTIONS\/\fR]
 .SH DESCRIPTION
-Fail2Ban v0.10.3 reads log file that contains password failure report
+Fail2Ban v0.10.4.dev1 reads log file that contains password failure report
 and bans the corresponding IP addresses using firewall rules.
 .SH OPTIONS
 .TP
diff --git a/man/fail2ban-testcases.1 b/man/fail2ban-testcases.1
index cae79879..56abc600 100644
--- a/man/fail2ban-testcases.1
+++ b/man/fail2ban-testcases.1
@@ -1,5 +1,5 @@
 .\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.4.
-.TH FAIL2BAN-TESTCASES "1" "April 2018" "fail2ban-testcases 0.10.3" "User Commands"
+.TH FAIL2BAN-TESTCASES "1" "April 2018" "fail2ban-testcases 0.10.4.dev1" "User Commands"
 .SH NAME
 fail2ban-testcases \- run Fail2Ban unit-tests
 .SH SYNOPSIS