diff --git a/README.md b/README.md
index 8ecb6d6..c79bce9 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 Copyright (c) 2016,2017 Ilya Khaprov <<i.khaprov@gmail.com>>.
 
-__Version:__ 4.10.0
+__Version:__ 4.11.0
 
 [![Hex.pm](https://img.shields.io/hexpm/v/prometheus.svg?maxAge=2592000?style=plastic)](https://hex.pm/packages/prometheus)
 [![Hex.pm](https://img.shields.io/hexpm/dt/prometheus.svg?maxAge=2592000)](https://hex.pm/packages/prometheus)
diff --git a/doc/README.md b/doc/README.md
index 40c6c73..c0174ee 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -4,7 +4,7 @@
 
 Copyright (c) 2016,2017 Ilya Khaprov <<i.khaprov@gmail.com>>.
 
-__Version:__ 4.10.0
+__Version:__ 4.11.0
 
 [![Hex.pm](https://img.shields.io/hexpm/v/prometheus.svg?maxAge=2592000?style=plastic)](https://hex.pm/packages/prometheus)
 [![Hex.pm](https://img.shields.io/hexpm/dt/prometheus.svg?maxAge=2592000)](https://hex.pm/packages/prometheus)
diff --git a/doc/overview.md b/doc/overview.md
index 9c289c6..2237fe6 100644
--- a/doc/overview.md
+++ b/doc/overview.md
@@ -1,6 +1,6 @@
 @copyright 2016,2017 Ilya Khaprov <<i.khaprov@gmail.com>>.
 @title Prometheus.io client for Erlang
-@version 4.10.0
+@version 4.11.0
 
 @doc
 [![Hex.pm](https://img.shields.io/hexpm/v/prometheus.svg?maxAge=2592000?style=plastic)](https://hex.pm/packages/prometheus)
diff --git a/doc/prometheus_text_format.md b/doc/prometheus_text_format.md
index 7cfe097..0c4fa02 100644
--- a/doc/prometheus_text_format.md
+++ b/doc/prometheus_text_format.md
@@ -37,7 +37,8 @@ Example output:
 
 
 <table width="100%" border="1" cellspacing="0" cellpadding="2" summary="function index"><tr><td valign="top"><a href="#content_type-0">content_type/0</a></td><td>
-Returns content type of the latest [text format](http://bit.ly/2cxSuJP).</td></tr><tr><td valign="top"><a href="#format-0">format/0</a></td><td>
+Returns content type of the latest [text format](http://bit.ly/2cxSuJP).</td></tr><tr><td valign="top"><a href="#escape_label_value-1">escape_label_value/1</a></td><td>
+Escapes the backslash (\), double-quote ("), and line feed (\n) characters.</td></tr><tr><td valign="top"><a href="#format-0">format/0</a></td><td>
 Formats <code>default</code> registry using the latest text format.</td></tr><tr><td valign="top"><a href="#format-1">format/1</a></td><td>
 Formats <code>Registry</code> using the latest text format.</td></tr><tr><td valign="top"><a href="#render_labels-1">render_labels/1</a></td><td></td></tr></table>
 
@@ -57,6 +58,17 @@ content_type() -&gt; binary()
 
 Returns content type of the latest [text format](http://bit.ly/2cxSuJP).
 
+<a name="escape_label_value-1"></a>
+
+### escape_label_value/1 ###
+
+<pre><code>
+escape_label_value(LValue::binary() | iolist()) -&gt; binary()
+</code></pre>
+<br />
+
+Escapes the backslash (\), double-quote ("), and line feed (\n) characters
+
 <a name="format-0"></a>
 
 ### format/0 ###
diff --git a/mix.exs b/mix.exs
index c18a39d..a5baccf 100644
--- a/mix.exs
+++ b/mix.exs
@@ -3,7 +3,7 @@ defmodule Prometheus.Mixfile do
 
   def project do
     [app: :prometheus,
-     version: "4.10.0",
+     version: "4.11.0",
      description: description(),
      package: package(),
      deps: deps()]
diff --git a/src/prometheus.app.src b/src/prometheus.app.src
index fd21698..a94c171 100644
--- a/src/prometheus.app.src
+++ b/src/prometheus.app.src
@@ -1,6 +1,6 @@
 {application, prometheus,
  [{description, "Prometheus.io client in Erlang"},
-  {vsn, "4.10.0"},
+  {vsn, "4.11.0"},
   {registered, []},
   {mod, { prometheus, []}},
   {applications,