content/downloads/download.mdtext - vcl-site - Git at Google

 Title: Downloads
 Notice:    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.

 ## Download Links
 Use the links below to download Apache VCL from one of our mirrors. You **must**
 [verify the integrity](download.cgi#verify) of the downloaded files using
 signatures downloaded from our main distribution directory, **not** from a mirror.

 Only current recommended releases are available on the main distribution site and
 its mirrors. Older releases are available from the archive download site.

 Stable Release - Latest Version:

 * <a href="[location]?Preferred=[preferred]&action=download&filename=%2Fvcl%2F2.4.2%2Fapache-VCL-2.4.2.tar.bz2">apache-VCL-2.4.2.tar.bz2</a>
 [ [GPG](http://www.apache.org/dist/vcl/2.4.2/apache-VCL-2.4.2.tar.bz2.asc) ]
 [ [SHA1](http://www.apache.org/dist/vcl/2.4.2/apache-VCL-2.4.2.tar.bz2.sha1) ]
 [ [MD5](http://www.apache.org/dist/vcl/2.4.2/apache-VCL-2.4.2.tar.bz2.md5) ]
 (released 2015-04-16)

 Previous Releases:

 * (Apache VCL 2.4.1 was never officially released)
 * (Apache VCL 2.4 was never officially released)
 * apache-VCL-2.3.2.tar.bz2 (released 2013-03-25)
 * apache-VCL-2.2.2.tar.bz2 (released 2013-03-25)
 * apache-VCL-2.3.1.tar.bz2 (released 2012-12-20)
 * apache-VCL-2.3.tar.bz2 (released 2012-07-20)
 * apache-VCL-2.2.1-incubating.tar.bz2 (released 2011-04-08)
 * apache-VCL-2.2-incubating.tar.bz2 (released 2010-10-05)
 * apache-VCL-2.1-incubating.tar.bz2 (released 2009-12-04)

 ## Mirror
 The currently selected mirror is **[preferred]**. If you encounter a problem with this
 mirror, please select another mirror. If all mirrors are failing, there are backup
 mirrors (at the end of the mirrors list) that should be available.

 <form name="setmirror" method="get" action="[location]">
 Other mirrors:
 <select name="Preferred">
 [if-any http]
   [for http]
     <option value="[http]">[http]</option>
   [end]
 [end]
 [if-any ftp]
   [for ftp]
     <option value="[ftp]">[ftp]</option>
   [end]
 [end]
 [if-any backup]
   [for backup]
     <option value="[backup]">[backup] (backup)</option>
   [end]
 [end]
 </select>
 <input type="submit" value="Change"></input>
 </form>

 You may also consult the [complete list of mirrors](http://www.apache.org/mirrors/).

 <a name="verify"></a>
 ## Verifying the integrity of the files

 It is essential that you verify the integrity of the downloaded files using the PGP or
 MD5 signatures. Security of the mirrors cannot be guaranteed, which means malicious code
 could be added to the downloads from the mirrors. By verifying the integrity of
 downloaded release files, you ensure they have not been tainted.

 Run the following command to verify the MD5 sum. It should give output similar to
 "apache-VCL-2.4.2.tar.bz2: OK":

     :::Text
     md5sum -c apache-VCL-2.4.2.tar.bz2.md5

 Similarly, run the following command to verify the SHA1 sum. You should get output
 similar to "apache-VCL-2.4.2.tar.bz2: OK":</p>

     :::Text
     sha1sum -c apache-VCL-2.4.2.tar.bz2.sha1

 To verify the GPG signature (you'll need to have [GnuPG](http://www.gnupg.org/) installed):


 1. download and import the VCL KEYS file (if you've imported the KEYS file for previously
 releases, you do not need to import it again):

         :::Text
         gpg --import KEYS

 1. download the GPG Signature to the same location as the release file
 1. from the directory containing both the release file and the GPG signature, run

         :::Text
         gpg --verify apache-VCL-2.4.2.tar.bz2.asc

 ## Installation
 For new installs, visit the on-line installation guide:

 Latest Version:

 * [Apache VCL 2.4.2 Installation Guide](/docs/VCL242InstallGuide.html)

 Previous Versions:

 * [Apache VCL 2.3.2 Installation Guide](/docs/VCL232InstallGuide.html)
 * [Apache VCL 2.3.1 Installation Guide](/docs/VCL231InstallGuide.html)
 * [Apache VCL 2.3 Installation Guide](/docs/VCL23Installation.html)
 * [Apache VCL 2.2.1 Installation Guide](http://cwiki.apache.org/confluence/display/VCL/VCL+2.3+Installation)
 * [Apache VCL 2.2 Installation Guide](http://cwiki.apache.org/confluence/display/VCL/VCL+2.3+Installation)
 * [Apache VCL 2.1 Installation Guide](http://cwiki.apache.org/confluence/display/VCL/VCL+2.3+Installation)


 ## Upgrading
 For upgrades, visit the on-line upgrade guide:

 Upgrade to latest version:

 * [upgrade 2.3.2 to 2.4.2](/docs/UpgradePreviousVersions/UpgradeFrom2.3.2to2.4.2.html)
 * [upgrade 2.2.2 to 2.4.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2.2to2.4.2.html)

 Upgrade to 2.3.2

 * [upgrade 2.3.1 to 2.3.2](/docs/UpgradePreviousVersions/UpgradeFrom2.3.1to2.3.2.html)
 * [upgrade 2.3 to 2.3.2](/docs/UpgradePreviousVersions/UpgradeFrom2.3to2.3.2.html)
 * [upgrade 2.2.1 to 2.3.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2.1to2.3.2.html)
 * [upgrade 2.2 to 2.3.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2to2.3.2.html)

 Upgrade to 2.2.2:

 * [upgrade 2.2.1 to 2.2.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2.1to2.2.2.html)
 * [upgrade 2.2 to 2.2.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2to2.2.2.html)

 Upgrade really old versions to older versions:

 to 2.3.1

 * [upgrade 2.3 to 2.3.1](/docs/UpgradePreviousVersions/UpgradeFrom2.3to2.3.1.html)
 * [upgrade 2.2.1 to 2.3.1](/docs/UpgradePreviousVersions/UpgradeFrom2.2.1to2.3.1.html)
 * [upgrade 2.2 to 2.3.1](/docs/UpgradePreviousVersions/UpgradeFrom2.2to2.3.1.html)

 to 2.3

 * [upgrade 2.2.1 to 2.3](/docs/UpgradePreviousVersions/UpgradeFrom2.2.1to2.3)
 * [upgrade 2.2 to 2.3](/docs/UpgradePreviousVersions/UpgradeFrom2.2to2.3)
 * [upgrade 2.1 to 2.3](http://cwiki.apache.org/confluence/display/VCL/Upgrade+From+Previous+Version+%282.1+to+2.3%29)

 to 2.2.1

 * [upgrade 2.2 to 2.2.1](http://cwiki.apache.org/confluence/display/VCL/Upgrade+From+Previous+Version+%282.2+to+2.2.1%29)
 * [upgrade 2.1 to 2.2.1](http://cwiki.apache.org/confluence/display/VCL/Upgrade+From+Previous+Version+%282.1+to+2.2.1%29)

 to 2.2

 * [upgrade 2.1 to 2.2](http://cwiki.apache.org/confluence/display/VCL/Upgrade+From+Previous+Version)

 ## Release Notes
 See the [release notes page](/docs/releasenotes.html) for information about each release.

 ## Change Log
 See the [change log page](/docs/changelog.html) for changes made in each release.
	Title: Downloads
	Notice: 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.

	## Download Links
	Use the links below to download Apache VCL from one of our mirrors. You must
	[verify the integrity](download.cgi#verify) of the downloaded files using
	signatures downloaded from our main distribution directory, not from a mirror.

	Only current recommended releases are available on the main distribution site and
	its mirrors. Older releases are available from the archive download site.

	Stable Release - Latest Version:

	* <a href="[location]?Preferred=[preferred]&action=download&filename=%2Fvcl%2F2.4.2%2Fapache-VCL-2.4.2.tar.bz2">apache-VCL-2.4.2.tar.bz2</a>
	[ [GPG](http://www.apache.org/dist/vcl/2.4.2/apache-VCL-2.4.2.tar.bz2.asc) ]
	[ [SHA1](http://www.apache.org/dist/vcl/2.4.2/apache-VCL-2.4.2.tar.bz2.sha1) ]
	[ [MD5](http://www.apache.org/dist/vcl/2.4.2/apache-VCL-2.4.2.tar.bz2.md5) ]
	(released 2015-04-16)

	Previous Releases:

	* (Apache VCL 2.4.1 was never officially released)
	* (Apache VCL 2.4 was never officially released)
	* apache-VCL-2.3.2.tar.bz2 (released 2013-03-25)
	* apache-VCL-2.2.2.tar.bz2 (released 2013-03-25)
	* apache-VCL-2.3.1.tar.bz2 (released 2012-12-20)
	* apache-VCL-2.3.tar.bz2 (released 2012-07-20)
	* apache-VCL-2.2.1-incubating.tar.bz2 (released 2011-04-08)
	* apache-VCL-2.2-incubating.tar.bz2 (released 2010-10-05)
	* apache-VCL-2.1-incubating.tar.bz2 (released 2009-12-04)

	## Mirror
	The currently selected mirror is [preferred]. If you encounter a problem with this
	mirror, please select another mirror. If all mirrors are failing, there are backup
	mirrors (at the end of the mirrors list) that should be available.

	<form name="setmirror" method="get" action="[location]">
	Other mirrors:
	<select name="Preferred">
	[if-any http]
	[for http]
	<option value="[http]">[http]</option>
	[end]
	[end]
	[if-any ftp]
	[for ftp]
	<option value="[ftp]">[ftp]</option>
	[end]
	[end]
	[if-any backup]
	[for backup]
	<option value="[backup]">[backup] (backup)</option>
	[end]
	[end]
	</select>
	<input type="submit" value="Change"></input>
	</form>

	You may also consult the [complete list of mirrors](http://www.apache.org/mirrors/).

	<a name="verify"></a>
	## Verifying the integrity of the files

	It is essential that you verify the integrity of the downloaded files using the PGP or
	MD5 signatures. Security of the mirrors cannot be guaranteed, which means malicious code
	could be added to the downloads from the mirrors. By verifying the integrity of
	downloaded release files, you ensure they have not been tainted.

	Run the following command to verify the MD5 sum. It should give output similar to
	"apache-VCL-2.4.2.tar.bz2: OK":

	:::Text
	md5sum -c apache-VCL-2.4.2.tar.bz2.md5

	Similarly, run the following command to verify the SHA1 sum. You should get output
	similar to "apache-VCL-2.4.2.tar.bz2: OK":</p>

	:::Text
	sha1sum -c apache-VCL-2.4.2.tar.bz2.sha1

	To verify the GPG signature (you'll need to have [GnuPG](http://www.gnupg.org/) installed):


	1. download and import the VCL KEYS file (if you've imported the KEYS file for previously
	releases, you do not need to import it again):

	:::Text
	gpg --import KEYS

	1. download the GPG Signature to the same location as the release file
	1. from the directory containing both the release file and the GPG signature, run

	:::Text
	gpg --verify apache-VCL-2.4.2.tar.bz2.asc

	## Installation
	For new installs, visit the on-line installation guide:

	Latest Version:

	* [Apache VCL 2.4.2 Installation Guide](/docs/VCL242InstallGuide.html)

	Previous Versions:

	* [Apache VCL 2.3.2 Installation Guide](/docs/VCL232InstallGuide.html)
	* [Apache VCL 2.3.1 Installation Guide](/docs/VCL231InstallGuide.html)
	* [Apache VCL 2.3 Installation Guide](/docs/VCL23Installation.html)
	* [Apache VCL 2.2.1 Installation Guide](http://cwiki.apache.org/confluence/display/VCL/VCL+2.3+Installation)
	* [Apache VCL 2.2 Installation Guide](http://cwiki.apache.org/confluence/display/VCL/VCL+2.3+Installation)
	* [Apache VCL 2.1 Installation Guide](http://cwiki.apache.org/confluence/display/VCL/VCL+2.3+Installation)


	## Upgrading
	For upgrades, visit the on-line upgrade guide:

	Upgrade to latest version:

	* [upgrade 2.3.2 to 2.4.2](/docs/UpgradePreviousVersions/UpgradeFrom2.3.2to2.4.2.html)
	* [upgrade 2.2.2 to 2.4.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2.2to2.4.2.html)

	Upgrade to 2.3.2

	* [upgrade 2.3.1 to 2.3.2](/docs/UpgradePreviousVersions/UpgradeFrom2.3.1to2.3.2.html)
	* [upgrade 2.3 to 2.3.2](/docs/UpgradePreviousVersions/UpgradeFrom2.3to2.3.2.html)
	* [upgrade 2.2.1 to 2.3.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2.1to2.3.2.html)
	* [upgrade 2.2 to 2.3.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2to2.3.2.html)

	Upgrade to 2.2.2:

	* [upgrade 2.2.1 to 2.2.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2.1to2.2.2.html)
	* [upgrade 2.2 to 2.2.2](/docs/UpgradePreviousVersions/UpgradeFrom2.2to2.2.2.html)

	Upgrade really old versions to older versions:

	to 2.3.1

	* [upgrade 2.3 to 2.3.1](/docs/UpgradePreviousVersions/UpgradeFrom2.3to2.3.1.html)
	* [upgrade 2.2.1 to 2.3.1](/docs/UpgradePreviousVersions/UpgradeFrom2.2.1to2.3.1.html)
	* [upgrade 2.2 to 2.3.1](/docs/UpgradePreviousVersions/UpgradeFrom2.2to2.3.1.html)

	to 2.3

	* [upgrade 2.2.1 to 2.3](/docs/UpgradePreviousVersions/UpgradeFrom2.2.1to2.3)
	* [upgrade 2.2 to 2.3](/docs/UpgradePreviousVersions/UpgradeFrom2.2to2.3)
	* [upgrade 2.1 to 2.3](http://cwiki.apache.org/confluence/display/VCL/Upgrade+From+Previous+Version+%282.1+to+2.3%29)

	to 2.2.1

	* [upgrade 2.2 to 2.2.1](http://cwiki.apache.org/confluence/display/VCL/Upgrade+From+Previous+Version+%282.2+to+2.2.1%29)
	* [upgrade 2.1 to 2.2.1](http://cwiki.apache.org/confluence/display/VCL/Upgrade+From+Previous+Version+%282.1+to+2.2.1%29)

	to 2.2

	* [upgrade 2.1 to 2.2](http://cwiki.apache.org/confluence/display/VCL/Upgrade+From+Previous+Version)

	## Release Notes
	See the [release notes page](/docs/releasenotes.html) for information about each release.

	## Change Log
	See the [change log page](/docs/changelog.html) for changes made in each release.