Title: OCW Releases 

#Download

[TOC] 

##Introduction

Download the newest release of Apache Open Climate Workbench either as source (see below) or from one of the popular packaging platforms 
e.g. [PyPI](https://pypi.org/project/ocw/) or [Anaconda](https://anaconda.org/conda-forge/ocw).

See the [1.3.0 Release Report](https://s.apache.org/xRl3)
for more information on the list of updates in this release.

OCW is always distributed under the [Apache License, version 2.0](http://www.apache.org/licenses/LICENSE-2.0.html).

##Prerequsites

You require [Python](https://www.python.org/) to build the OCW source code. 

You may also was to check out the instructions for 
[building the OCW documentation](https://github.com/apache/climate#documentation)

<b>N.B.</b> OCW is NOT tested extensively against the Windows platform however through the [Anaconda](https://anaconda.org/conda-forge/ocw)
package, we do build for Windows.

We would really appreciated any [feedback you have.](http://climate.apache.org/community/mailing-lists.html)

##Downloads

Please click below for your most recent download.

<a href="http://www.apache.org/dyn/closer.lua/climate/1.3.0/climate-1.3.0-rc1.tgz" class="btn btn-primary btn-large">Download (1.3.0 .tgz)</a>
<a href="http://www.apache.org/dyn/closer.lua/climate/1.3.0/climate-1.3.0-rc1.zip" class="btn btn-primary btn-large">Download (1.3.0 .zip)</a>

##Mirrors

The downloads above link to the global Apache mirror network. Clicking on one should display a default mirror selection 
based on your inferred location. If (when you browse to it) you do not see that page, try a different browser. 
The signature and hashes below are links to the originals on the main distribution server. You must verify the integrity of the downloaded files.
<table class="table">
  <thead>
  <tr>
    <th align="left">Version</th> 
    <th align="left">SHA512</th> 
    <th align="left">ASC</th> 
  </tr>
  </thead>
  <tbody>
  <tr>
    <td>Apache OCW 1.2.0 (.tgz)</td>
    <td><a href="https://apache.org/dist/climate/1.3.0/climate-1.3.0-rc1.tgz.sha512">climate-1.3.0-rc1.tgz.sha512</a> </td> 
    <td><a href="https://apache.org/dist/climate/1.3.0/climate-1.3.0-rc1.tgz.asc">climate-1.3.0-rc1.tgz.asc</a> </td> 
  </tr>
  <tr>
    <td>Apache OCW 1.2.0 (zip)</td>
    <td><a href="https://apache.org/dist/climate/1.3.0/climate-1.3.0-rc1.zip.sha512">climate-1.3.0-rc1.zip.sha512</a></td>
    <td><a href="https://apache.org/dist/climate/1.3.0/climate-1.3.0-rc1.zip.asc">climate-1.3.0-rc1.zip.asc</a></td>
  </tr>
  </tbody>
</table>

##Verify Releases
It is essential that you verify the integrity of the downloaded files using the ASC and/or SHA512 signatures. 
published with every OCW release.

Please read [Verifying Apache HTTP Server Releases](http://httpd.apache.org/dev/verification.html) 
for more information on why you should verify our releases.

We strongly recommend you verify your downloads with at least both PGP and MD5. Guidance
for doing so is provided below.

##PGP Signature
The PGP signatures can be verified using PGP or GPG. First download the 
[KEYS](http://www.apache.org/dist/climate/KEYS) as well as the asc signature file 
for the relevant distribution. 

<b>N.B.</b>Make sure you get these files from the 
[main distribution directory](http://www.apache.org/dist/climate/), rather than from a 
mirror. Then verify the signatures using the following

    $ gpg --import KEYS
    $ gpg --verify climate-X.Y.Z.tgz.asc climate-X.Y.Z.tgz
    
The files in the most recent release are signed by Lewis John McGibbney (ASF Code Signing Key) <lewismc [at] apache [dot] org> 48BAEBF6

##Previous Releases
If you are looking for previous releases of Apache OCW, have a look in the 
[Apache Archives](http://archive.apache.org/dist/climate/).

Subscribe to the dev@ [mailing list](./mailing_lists.html) if you want to 
get notified about future releases.
    
All Apache OCW releases are available under the Apache License, Version 2.0. 
See the NOTICE.txt file contained in each release artifact for applicable 
copyright attribution notices.