[Website] Update website for 0.11.1 bugfix release (#3060)

Change-Id: I5eddfb4c51ffd3ea5ad7f98a10c98addbcf3c883
diff --git a/_data/versions.yml b/_data/versions.yml
index 9707259..8e16274 100644
--- a/_data/versions.yml
+++ b/_data/versions.yml
@@ -17,16 +17,16 @@
 # Blogs and other pages use this data
 #
 current:
-  number: '0.11.0'
+  number: '0.11.1'
   pinned_number: '0.11.*'
-  date: '8 October 2018'
-  git-tag: '98db705'
-  github-tag-link: 'https://github.com/apache/arrow/releases/tag/apache-arrow-0.11.0'
-  release-notes: 'http://arrow.apache.org/release/0.11.0.html'
-  mirrors: 'https://www.apache.org/dyn/closer.cgi/arrow/arrow-0.11.0/'
-  tarball_name: 'apache-arrow-0.11.0.tar.gz'
-  mirrors-tar: 'https://www.apache.org/dyn/closer.cgi/arrow/arrow-0.11.0/apache-arrow-0.11.0.tar.gz'
-  java-artifacts: 'http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.apache.arrow%22%20AND%20v%3A%220.11.0%22'
-  asc: 'https://www.apache.org/dist/arrow/arrow-0.11.0/apache-arrow-0.11.0.tar.gz.asc'
-  sha256: 'https://www.apache.org/dist/arrow/arrow-0.11.0/apache-arrow-0.11.0.tar.gz.sha256'
-  sha512: 'https://www.apache.org/dist/arrow/arrow-0.11.0/apache-arrow-0.11.0.tar.gz.sha512'
+  date: '19 October 2018'
+  git-tag: 'b65beb6'
+  github-tag-link: 'https://github.com/apache/arrow/releases/tag/apache-arrow-0.11.1'
+  release-notes: 'http://arrow.apache.org/release/0.11.1.html'
+  mirrors: 'https://www.apache.org/dyn/closer.cgi/arrow/arrow-0.11.1/'
+  tarball_name: 'apache-arrow-0.11.1.tar.gz'
+  mirrors-tar: 'https://www.apache.org/dyn/closer.cgi/arrow/arrow-0.11.1/apache-arrow-0.11.1.tar.gz'
+  java-artifacts: 'http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.apache.arrow%22%20AND%20v%3A%220.11.1%22'
+  asc: 'https://www.apache.org/dist/arrow/arrow-0.11.1/apache-arrow-0.11.1.tar.gz.asc'
+  sha256: 'https://www.apache.org/dist/arrow/arrow-0.11.1/apache-arrow-0.11.1.tar.gz.sha256'
+  sha512: 'https://www.apache.org/dist/arrow/arrow-0.11.1/apache-arrow-0.11.1.tar.gz.sha512'
diff --git a/_release/0.11.1.md b/_release/0.11.1.md
new file mode 100644
index 0000000..f58162d
--- /dev/null
+++ b/_release/0.11.1.md
@@ -0,0 +1,52 @@
+---
+layout: default
+title: Apache Arrow 0.11.1 Release
+permalink: /release/0.11.1.html
+---
+<!--
+{% comment %}
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements.  See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License.  You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+{% endcomment %}
+-->
+
+# Apache Arrow 0.11.1 (19 October 2018)
+
+This is a bugfix release to address a Python packaging issue with zlib that
+resulted in bug [ARROW-3514][4].
+
+## Download
+
+* [**Source Artifacts**][1]
+* [**Binary Artifacts**][2]
+* [Git tag][3]
+
+# Changelog
+
+## New Features and Improvements
+
+* [ARROW-3353](https://issues.apache.org/jira/browse/ARROW-3353) - [Packaging] Build python 3.7 wheels
+* [ARROW-3534](https://issues.apache.org/jira/browse/ARROW-3534) - [Python] Update zlib library in manylinux1 image
+* [ARROW-3546](https://issues.apache.org/jira/browse/ARROW-3546) - [Python] Provide testing setup to verify wheel binaries work in one or more common Linux distributions
+* [ARROW-3565](https://issues.apache.org/jira/browse/ARROW-3565) - [Python] Pin tensorflow to 1.11.0 in manylinux1 container
+
+## Bug Fixes
+
+* [ARROW-3514](https://issues.apache.org/jira/browse/ARROW-3514) - [Python] zlib deflate exception when writing Parquet file
+
+[1]: https://www.apache.org/dyn/closer.cgi/arrow/arrow-0.11.1/
+[2]: https://www.apache.org/dyn/closer.cgi/arrow/arrow-0.11.1/binaries
+[3]: https://github.com/apache/arrow/releases/tag/apache-arrow-0.11.1
+[4]: https://issues.apache.org/jira/browse/ARROW-3514
\ No newline at end of file
diff --git a/_release/index.md b/_release/index.md
index e0f7352..bd5fb1f 100644
--- a/_release/index.md
+++ b/_release/index.md
@@ -26,6 +26,7 @@
 
 Navigate to the release page for downloads and the changelog.
 
+* [0.11.1 (19 October 2018)][14]
 * [0.11.0 (8 October 2018)][13]
 * [0.10.0 (6 August 2018)][12]
 * [0.9.0 (21 March 2018)][11]
@@ -53,3 +54,4 @@
 [11]: {{ site.baseurl }}/release/0.9.0.html
 [12]: {{ site.baseurl }}/release/0.10.0.html
 [13]: {{ site.baseurl }}/release/0.11.0.html
+[14]: {{ site.baseurl }}/release/0.11.1.html