2.4. Software Releases

2.4.1. Stable Releases

A "stable release" of EMBOSS and each EMBASSY package provides a quality assurance tested "freeze" of code suitable for environments where stability is of paramount importance. These distributions are built from the CVS master copy once all compilation and other quality assurance tests succeed and are available on the FTP server:

ftp://emboss.open-bio.org/pub/EMBOSS/ EMBOSS Stable Release

The current EMBOSS stable release is available in the file:


Stable releases for older versions are available from:

ftp://emboss.open-bio.org/pub/EMBOSS/old EMBASSY Stable Releases

The EMBASSY packages currently include wrappers to various third party software and several beta-release packages for protein structure and related areas. The following packages are available:

The packages can be found in the file PackageName.tar.gz. For example

ftp://emboss.open-bio.org/pub/EMBOSS/MYEMBOSS-6.4.0.tar.gz Release Dates and Version Numbers

The EMBOSS major version numbers (1.0.0, 2.0.0 etc) increase by 1 each year upon each major release, which by tradition has always been on St Swithun's day (15th July).

New EMBASSY packages do not have a fixed release date or formal version numbering scheme. EMBASSY packages are specific to each EMBOSS major release and must be downloaded and recompiled when EMBOSS is updated. To avoid confusion, version numbers for EMBASSY packages which wrap third party software are set to be the same as the version number of the software that has been wrapped. Log File of Changes

The log file of changes included in the EMBOSS distribution (in the file .../emboss/ChangeLog) gives a brief description of what has changed over the versions and documents new additions in the latest release. The file is available online at:


2.4.2. Developers (CVS) Release

The "Developers (CVS) Release" is the current CVS source code tree used by the EMBOSS core developers. This CVS repository is updated every couple of hours. We recommend this release to developers who need to keep up-to-date with recent library changes and new features.

Instructions on how to checkout (download) the developers release and on using CVS are given elsewhere (Section 2.5, “Downloading the Stable Release”).

If you intend only to use but not develop EMBOSS, you will not need this release of code.