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](http://archive.apache.org/dist/vcl/). Stable Release - Latest Version: * apache-VCL-2.5.1.tar.bz2 [ [GPG](https://www.apache.org/dist/vcl/2.5.1/apache-VCL-2.5.1.tar.bz2.asc) ] [ [SHA512](https://www.apache.org/dist/vcl/2.5.1/apache-VCL-2.5.1.tar.bz2.sha512) ] (released 2019-07-25) Previous Releases: * apache-VCL-2.5.tar.bz2 (released 2017-08-18) * apache-VCL-2.4.2.tar.bz2 (released 2015-04-16) * (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.
Other mirrors:
You may also consult the [complete list of mirrors](http://www.apache.org/mirrors/). ## 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 SHA256 sum. You should get output similar to "apache-VCL-2.5.1.tar.bz2: OK":

:::Text sha256sum -c apache-VCL-2.5.1.tar.bz2.sha256 Similarly, run the following command to verify the MD5 sum. It should give output similar to "apache-VCL-2.5.1.tar.bz2: OK": :::Text md5sum -c apache-VCL-2.5.1.tar.bz2.md5 To verify the GPG signature (you'll need to have [GnuPG](http://www.gnupg.org/) installed): 1. download and import the [VCL KEYS file](https://www.apache.org/dist/vcl/KEYS) (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-2.5.1.tar.bz2.asc ## TSU Notification - Encryption This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See for more information. The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this Apache Software Foundation distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code. The following provides more details on the included cryptographic software: The web and backend portions of the code utilize php and perl functions to encrypt password information stored in the database. The web code utilizes php functions to encrypt cookie information passed to and stored in users' browsers. The backend code uses openssh to connect to and control deployed nodes. openssh heavily uses encryption. Addionally, the web portion of the code includes portions of the phpseclib library. This library is only used for PHP versions not supporting the function "openssl_encrypt" (supported since PHP 5.3.0). ## Installation For new installs, visit the on-line installation guide: Latest Version: * [Apache VCL 2.5.1 Installation Guide](/docs/VCL251InstallGuide.html) Previous Versions: * [Apache VCL 2.5 Installation Guide](/docs/VCL25InstallGuide.html) * [Apache VCL 2.4.2 Installation Guide](/docs/VCL242InstallGuide.html) * [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 2.5 to 2.5.1](/docs/UpgradePreviousVersions/UpgradeFrom2.5to2.5.1.html) * [upgrade 2.4.2 to 2.5.1](/docs/UpgradePreviousVersions/UpgradeFrom2.4.2to2.5.1.html) Upgrade to 2.5 * [upgrade 2.4.2 to 2.5](/docs/UpgradePreviousVersions/UpgradeFrom2.4.2to2.5.html) Upgrade to 2.4.2 * [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.