Software Distribution Using the ESP Package Manager


ESP-004-20031028
Michael Sweet
Copyright 1999-2003 by Easy Software Products

Table of Contents



Preface 1 - Introduction to EPM 2 - Building EPM 3 - Packaging Your Software with EPM 4 - Advanced Packaging with EPM A - GNU General Public License

B - Command Reference C - List File Reference D - Release Notes

Preface

This document provides a tutorial and reference for the ESP Package Manager ("EPM") software, version 3.7.

Organization of this Manual

This document is organized into the following chapters and appendices:

Notation Conventions

Various font and syntax conventions are used in this guide. Examples and their meanings and uses are explained below:

Example   Description
 
epm
epm(1)
   The names of commands; the first mention of a command or function in a chapter is followed by a manual page section number.
 
/var
/usr/bin/epm
   File and directory names.
 
Request ID is Printer-123    Screen output.
 
lp -d printer filename ENTER    Literal user input; special keys like ENTER are in ALL CAPS.
 
foo start of long command \
   end of long command ENTER
   Long commands are broken up on multiple lines using the backslash (\) character. Enter the commands without the backslash.
 
12.3   Numbers in the text are written using the period (.) to indicate the decimal point.

Abbreviations

The following abbreviations are used throughout this manual:

Other References


1 - Introduction to EPM

This chapter provides an introduction to the ESP Package Manager ("EPM").

What is EPM?

Software distribution under UNIX/Linux can be a challenge, especially if you ship software for more than one operating system. Every operating system provides its own software packaging tools and each has unique requirements or implications for the software development environment.

The ESP Package Manager ("EPM") is one solution to this problem. Besides its own "portable" distribution format, EPM also supports the generation of several vendor-specific formats. This allows you to build software distribution files for almost any UNIX/Linux operating system from the same sources.

History and Evolution

When Easy Software Products was founded in 1993, we originally shipped software only for the SGI IRIX operating system. In 1997 we added support for Solaris, which was quickly followed by HP-UX support in 1998.

Each new operating system and supported processor required a new set of packaging files. While this worked, it also meant that we had to keep all of the packaging files synchronized manually. Needless to say, this process was far from perfect and we had more than one distribution that was not identical on all operating systems.

As we began developing the Common UNIX Printing System ( http://www.cups.org/) in 1998, our initial goal was to add support for two additional operating systems: Linux and Compaq Tru64 UNIX. If we wanted to avoid the mistakes of the past, we clearly had to change how we produced software distributions.

The first version of EPM was released in 1999 and supported so-called "portable" software distributions that were not tied to any particular operating system or packaging software. Due to popular demand, we added support for vendor-specific packaging formats in the second major release of EPM, allowing the generation of portable or "native" distributions from one program and one set of software distribution files.

Existing Software Packaging Systems

As we looked for a solution to our problem, we naturally investigated the existing open-source packaging systems. Under Linux, we looked at the RedHat Package Manager ("RPM") and Debian packaging software ("dpkg" and "dselect"). For the commercial UNIX's we looked at the vendor-supplied packaging systems. Table 1.1 shows the results of our investigation.

Table 1.1: Software Packaging Formats
FormatOperating Systems1 Binaries?Cross- Platform?Patches? Upgrades?Conflicts? Requires?Replaces?Config Files?Map Files?
installpAIX YesNoNo NoYesYes NoNoNo
pkg_addFreeBSD YesYes2NoNoNoNoNoNoNo
pkg_addNetBSD
OpenBSD
YesYes2 NoNo YesYesNo NoNo
dpkgCorel Linux
Debian GNU/Linux
Yes Yes2NoYesYesYesYesYesNo
swinstallHP-UX YesNoYes YesYesYes NoYesYes
instIRIX YesNoYes YesYesYes YesYesYes
pkgaddSolaris YesNoYes NoYesYes NoYesYes
rpmMandrake
RedHat
SuSE
TurboLinux
YesYes 2NoYes YesYesNo YesNo
setldTru64 UNIX YesNoNo NoYesYes NoNoNo
  1. Standard packaging system for named operating systems.
  2. These packaging systems are cross-platform but require the package management utilities to be installed on the platform before installing the package.

As you can see, none of the formats supported every feature we were looking for. One common fault of all these formats is that they do not support a common software specification file format. That is, making a Debian software distribution requires significantly different support files than required for a Solaris pkg distribution. This makes it extremely difficult to manage distributions for multiple operating systems.

All of the package formats support binary distributions. The RPM and Debian formats also support source distributions that specifically allow for recompilation and installation. Only the commercial UNIX formats support patch distributions - you have to completely upgrade a software package with RPM and Debian. All but the Solaris pkg format allow you to upgrade a package without removing the old version first.

When building the software packages, RPM and Debian force you to create the actual directories, copy the files to those directories, and set the ownerships and permissions. You essentially are creating a directory for your software that can be archived in the corresponding package format. To ensure that all file permissions and ownerships are correct, you must build the distribution as the root user or use the fakeroot software, introducing potential security risks and violating many corporate security policies. It can also make building distributions difficult when dynamic data such as changing data files or databases is involved.

The commercial UNIX formats use software list files that map source files to the correct directories and permissions. This allows for easier delivery of dynamic data, configuration management of what each distribution actually contains, and eliminates security issues with special permissions and building distributions as the root user. Using the proprietary format also has the added benefit of allowing for software patches and using the familiar software installation tools for that operating system. The primary disadvantage is that the same distributions and packaging software cannot be used on other operating systems.

Design Goals of EPM

EPM was designed from the beginning to build binary software distributions using a common software specification format. The same distribution files work for all operating systems and all distribution formats. Supporting source code distributions was not a goal since most RPM and Debian source distributions are little more than wrapping around a compressed tar file containing the source files and a configure script.

Over the years, additional features have made their way into EPM to support more advanced software packages. Whenever possible, EPM emulates a feature if the vendor packager does not support it natively.

Resources

The EPM web site provides access to the current software and documentation for EPM:

The EPM source code can be downloaded in compressed tar files or via the popular CVS software. Please see the EPM web site for complete instructions.

The Easy Software Products news server provides several newsgroups for EPM. You can access it at:

Commercial support for EPM is available from Easy Software Products and is one way to contribute to the continued development of EPM. The other way to contribute is by donating code, examples, and bug fixes. If you have adapted EPM for another operating system or have added a new feature that you feel will be generally useful, please contribute it!


2 - Building EPM

This chapter shows how to configure, build, and install the ESP Package Manager.

Requirements

EPM requires very little pre-installed software to work. Most items will likely be provided as part of your OS. Your development system will need a C compiler, the make(1) program (GNU, BSD, and most vendor make programs should work), the Bourne (or Korn or Bash) shell (sh(1)), and gzip(1).

The optional graphical setup program requires a C++ compiler, the FLTK library, version 1.1.x, and (for UNIX/Linux) the X11 libraries. FLTK is available at the following URL:

Your end-user systems will require the Bourne (or Korn or Bash) shell (sh), the df(1) program, the tar(1) program, and the gzip(1) program to install portable distributions. All but the last are standard items, and most vendors include gzip as well.

Note:

The gzip program is only required to uncompress the software distribution .tar.gz file. If you supply the uncompressed .tar file or its contents, then gzip is not required on the end-user system.

EPM can also generate vendor-specific distributions. These require the particular vendor tool, such as rpm(8) and dpkg(8), to generate the software distribution on the development system and load the software distribution on the end-user system.

Configuring the Software

EPM uses GNU autoconf(1) to configure itself for your system. The configure script is used to configure the EPM software, as follows:

Choosing Compilers

If the configure script is unable to determine the name of your C or C++ compiler, set the CC and CXX environment variables to point to the C and C++ compiler programs, respectively. You can set these variables using the following commands in the Bourne, Korn, or Bash shells:

If you are using C shell or TCsh, use the following commands instead:

Run the configure script again to use the new commands.

Choosing Installation Directories

The default installation prefix is /usr, which will place the EPM programs in /usr/bin, the setup GUI in /usr/lib/epm, and the man pages in /usr/man. Use the --prefix option to relocate these files to another directory:

The configure script also accepts the --bindir , --libdir, and --mandir options to relocate each directory separately, as follows:

Options for the Setup GUI

The setup GUI requires the FLTK library. The configure script will look for the fltk-config utility that comes with FLTK 1.1.x. Set the FLTKCONFIG environment variable to the full path of this utility if it cannot be found in the current path:

or:

Building the Software

Once you have configured the software, type the following command to compile it:

Compilation should take a few minutes at most. Then type the following command to determine if the software compiled successfully:

The test target builds a portable and native distribution of EPM and reports if the two distributions were generated successfully.

Installing the Software

Now that you have compiled and tested the software, you can install it using the make command or one of the distributions that was created. You should be logged in as the super-user unless you specified installation directories for which you have write permission. The su(8) command is usually sufficient to install software:

Installing Using the make Command

Type the following command to install the EPM software using the make command:

Installing Using the Portable Distribution

The portable distribution can be found in a subdirectory named using the operating system, version, and architecture. For example, the subdirectory for a Linux 2.4.x system on an Intel-based system would be linux-2.4-intel. The subdirectory name is built from the following template:

The os name is the common name for the operating system. Table 2.1 lists the abbreviations for most operating systems:

Table 2.1: Operating System Name Abbreviations
Operating SystemName
AIXaix
Compaq Tru64 UNIX
Digital UNIX
OSF/1
tru64
Darwindarwin
FreeBSDfreebsd
HP-UXhpux
IRIXirix
Linuxlinux
MacOS Xdarwin
NetBSDnetbsd
OpenBSDopenbsd
Solarissolaris

The major.minor string is the operating system version number. Any patch revision information is stripped from the version number, as are leading characters before the major version number. For example, HP-UX version B.11.11 will result in a version number string of 11.11.

The architecture string identifies the target processor. Table 2.2 lists the supported processors:

Table 2.2: Processor Architecture Abbreviations
Processor(s)Abbreviation
Compaq Alphaalpha
HP Precision Architecturehppa
INTEL 80x86intel
MIPS RISCmips
IBM Power PCpowerpc
SPARC
MicroSPARC
UltraSPARC
sparc

Once you have determined the subdirectory containing the distribution, type the following commands to install EPM from the portable distribution:

The software will be installed after answering a few yes/no questions.

Installing Using the Native Distribution

The test target also builds a distribution in the native operating system format, if supported. Table 2.3 lists the native formats for each supported operating system and the command to run to install the software.

Table 2.3: Native Operating System Formats
Operating SystemFormatCommand
AIXaixinstallp -d directory epm
Compaq Tru64 UNIX
Digital UNIX
OSF/1
setldsetld -a directory???
FreeBSD
NetBSD
OpenBSD
bsdcd directory
pkg_add epm
HP-UXdepotswinstall -f directory
IRIXinstswmgr -f directory
Linuxrpmrpm -i directory/epm-3.0.rpm
MacOS XosxDouble-click on the .pkg folder in the finder.
Solarispkgpkgadd -d directory epm

3 - Packaging Your Software with EPM

This chapter describes how to use EPM to package your own software packages.

The Basics

EPM reads one or more software "list" files that describe a single software package. Each list file contains one or more lines of ASCII text containing product or file information. Comments start with the # character, directives start with the % character, variable start with the $ character, and files, directories, and symlinks start with a letter.

Product Information

Every list file needs to define the product name, copyright, description, license, README file, vendor, and version:

The %license and %readme directives specify files for the license agreement and README files for the package, respectively.

The %product, %copyright, %vendor , and %description directives take text directly from the line.

The %version directive specifies the version numbers of the package. The first number is the human-readable version number, while the second number is the integer version number. If you omit the integer version number, EPM will calculate one for you.

Files, Directories, and Symlinks

Each file in the distribution is listed on a line starting with a letter. The format of all lines is:

Regular files use the letter f for the type field:

Configuration files use the letter c for the type field:

Directories use the letter d for the type field and use a source path of "-":

Finally, symbolic links use the letter l (lowercase L) for the type field:

The source field specifies the file to link to and can be a relative path.

Wildcards

Wildcard patterns can be used in the source field to include multiple files on a single line:

Building a Software Distribution

The epm(1) program is used to build software distributions from list files. To build a portable software distribution for an application called "foo", type the following command:

If your application uses a different base name than the list file, you can specify the list filename on the command-line as well:

EPM can also produce vendor-specific distributions using the -f option:

The format option can be one of the following keywords:

Everything in the software list file stays the same - you just use the -f option to select the format. For example, to build an RPM distribution of EPM, type:

The result will be an RPM distribution file instead of the portable distribution file.

Installing the Software Package

Once you have created the software distribution, you can install it. Portable distributions create an install script called product.install, where "product" is the name of the package:

After answering a few yes/no questions, the software will be installed. To bypass the questions, run the script with the now argument:

Including the Setup GUI

EPM also provides an optional graphical setup program. To include the setup program in your distributions, create a product logo image in XPM format and use the --setup-image option when creating your distribution:


4 - Advanced Packaging with EPM

This chapter describes the advanced packaging features of EPM.

Including Other List Files

The %include directive includes another list file:

Includes can be nested, usually up to 250 levels (depends on the host operating system and libraries.)

Conflicts, Provides, Replaces, and Requires

Software conflicts and requirements are specified using the %incompat and %requires directives. If your software replaces another package, you can specify that using the %replaces directive (%replaces is silently mapped to %conflicts when the distribution format does not support package replacement.) If your package provides certain functionality associated with a standard name, the %provides directive can be used.

Dependencies are specified using the package name and optionally the lower and upper version numbers:

or the filename:

Package dependencies are currently enforced only for the same package format, so a portable distribution that requires package "foobar" will only look for an installed "foobar" package in portable format.

Filename dependencies are only supported by the Debian, portable, and RPM distribution formats.

Scripts

Bourne shell script commands can be executed before or after installation, patching, or removal of the software. The %preinstall and %postinstall directives specify commands to be run before and after installation, respectively:

Similarly, the %prepatch and %postpatch directives specify commands to be executed before and after patching the software:

Finally, the %preremove and %postremove directives specify commands that are run before and after removal of the software:

To include an external script file, use the <filename notation:

To include multiple lines directly, use the <<string notation:

Note that all commands specified in the list file will use the variable expansion provided by EPM, so be sure to quote any dollar sign ($) characters in your commands. For example, "$foo" is replaced by the value of "foo", but "$$foo" becomes "$foo".

Conditional Directives

The %system directive can match or not match specific operating system names or versions. The operating system name is the name reported by uname in lowercase, while the operating system version is the major and minor version number reported by uname -r:

%system irix
Only include the following files when building a distribution for the IRIX operating system.
%system linux-2.0
Only include the following files when building a distribution for Linux 2.0.x.
%system !irix !linux-2.0
Only include the following files when building a distribution for operating systems other than IRIX and Linux 2.0.x.

The special name all is used to match all operating systems:

For format-specific files, the %format directive can be used:

%format rpm
Only include the following files when building an RPM distribution.
%format !rpm
Only include the following files when not building an RPM distribution.x.
%format all
Include the following files for all types of distributions.

Finally, EPM can conditionally include lines using the %if , %elseif, %ifdef, %elseifdef, %else, and %endif directives. %if directives include the text that follows if the named variable(s) are defined to a non-empty string, while %ifdef directives only include the text if the named variable(s) are defined to any value.

Protecting Object Files from Stripping

The nostrip() option can be included at the end of a file line to prevent EPM from stripping the symbols and debugging information from the file:

Software Patches

EPM supports portable software patch distributions which contain only the differences between the original and patch release. Patch files are specified using uppercase letters for the affected files. In the following example, the files /usr/bin/bar and /etc/foo.conf are marked as changed since the original release:

Variables

EPM imports the current environment variables for use in your list file. You can also define new variable in the list file or on the command-line when running EPM.

Variables are defined by starting the line with the dollar sign ( $) followed by the name and value:

Variable substitution is performed when the variable is defined, so be careful with the ordering of your variable definitions.

Also, any variables you specify in your list file will be overridden by variables defined on the command-line or in your environment, just like with make. This can be a useful feature or a curse, depending on your choice of variable names.

As you can see, variables are referenced using the dollar sign ( $). As with most shells, variable names can be surrounded by curly braces (${variable}) to explicitly delimit the name.

If you need to insert a $ in a filename or a script, use $$:

Init Scripts

Initialization scripts are generally portable between platforms, however the location of initialization scripts varies greatly.

The i file type can be used to specify and init script that is to be installed on the system. EPM will then determine the appropriate init file directories to use and create any required symbolic links to support the init script:

The previous example creates an init script named foo on the end-user system and will create symbolic links to run levels 0, 2, 3, and 5 as needed, using a sequence number of 00 (or 000) for the shutdown script and 99 (or 999) for the startup script.

To specify run levels and sequence numbers, use the runlevel() , start(), and stop() options:


A - GNU General Public License

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Version 2, June 1991

Copyright (C) 1989, 1991 Free Software Foundation, Inc.
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B - Command Reference

epm


Create software packages

Synopsis

epm [ -a architecture ] [ -f format ] [ -g ] [ -k ] [ -n[mrs] ] [ -s setup.xpm ] [ --output-dir directory ] [ --setup-image setup.xpm ] [ --setup-program /foo/bar/setup ] [ --setup-types setup.types ] [ -v ] [ name=value name=value ] product [ listfile ]

Description

epm generates software packages complete with installation, removal, and (if necessary) patch scripts. Unless otherwise specified, the files required for product are read from a file named " product.list".

The -a option ("architecture") specifies the actual architecture for the software. Without this option the generic processor architecture is used ("intel", "sparc", "mips", etc.)

The -f option ("format") specifies the distribution format:

Executable files in the distribution are normally stripped of debugging information when packaged. To disable this functionality use the -g option.

Intermediate (spec, etc.) files used to create the distribution are normally removed after the distribution is created. The -k option keeps these files in the distribution directory.

The -s and --setup-image options ("setup") include the ESP Software Wizard with the specified XPM image file with the distribution. This option is currently only supported by portable distributions.

The --setup-program option specifies the setup executable to use with the distribution. This option is currently only supported by portable distributions.

The --setup-types option specifies the setup.types file to include with the distribution. This option is currently only supported by portable distributions.

The --output-dir option specifies the directory to place output file into. The default directory is based on the operating system, version, and architecture.

The -v option ("verbose") increases the amount of information that is reported. Use multiple v's for more verbose output.

Distributions normally are named "product-version-system-release-machine.ext" and "product-version-system-release-machine-patch.ext" (for patch distributions.) The "system-release-machine" information can be customized or eliminated using the -n option with the appropriate trailing letters. Using -n by itself will remove the "system-release-machine" string from the filename entirely.

Debian, IRIX, portable, and Red Hat distributions use the extensions ".deb", ".tardist", "tar.gz", and ".rpm" respectively.

List Variables

EPM maintains a list of variables and their values which can be used to substitute values in the list file. These variables are imported from the current environment and taken from the command-line and list file as provided. Substitutions occur when the variable name is referenced with the dollar sign ($):

Variable names can be surrounded by curley brackets (${name}) or alone ($name); without brackets the name is terminated by the first slash (/), dash (-), or whitespace. The dollar sign can be inserted using $$.

Known Bugs

EPM does not currently support generation of IRIX software patches.

See Also

epm(1) - create software packages.

epminstall(1) - add a directory, file, or symlink to a list file.
mkepmlist(1) - make an epm list file from a directory.
epm.list(5) - epm list file format.

setup(1) - graphical setup program for the esp package manager.

Copyright

Copyright 1999-2003 by Easy Software Products, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

epminstall


Add a directory, file, or symlink to a list file.

Synopsis

epminstall options file1 file2 ... fileN directory

epminstall options file1 file2

epminstall options -d directory1 directory2 ... directoryN

Description

epminstall adds or replaces a directory, file, or symlink in a list file. The default list file is epm.list and can be overridden using the EPMLIST environment variable or the --list-file option.

Entries are either added to the end of the list file or replaced in-line. Comments, directives, and variable declarations in the list file are preserved.

Options

epminstall recognizes the standard Berkeley install command options:

See Also

epm(1) - create software packages.
mkepmlist(1) - make an epm list file from a directory.
epm.list(5) - epm list file format.

Copyright

Copyright 1999-2003 by Easy Software Products, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

mkepmlist


Make an EPM list file from a directory.

Synopsis

mkepmlist [ -g group ] [ -u user ] [ --prefix directory ] directory [ ... directory ]

Description

mkepmlist recursively generates file list entries for files, links, and directories. The file list is send to the standard output.

The -g option overrides the group ownership of the files in the specified directories with the specified group name.

The -u option overrides the user ownership of the files in the specified directories with the specified user name.

The --prefix option adds the specified directory to the destination path. For example, if you installed files to /opt/foo and wanted to build a distribution that installed the files in /usr/local, the following command would generate a file list that is installed in /usr/local:

See Also

epm(1) - create software packages.
epminstall(1) - add a directory, file, or symlink to a list file.
epm.list(5) - epm list file format.

Copyright

Copyright 1999-2003 by Easy Software Products, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

setup


Graphical setup program for the ESP package manager.

Synopsis

setup [ directory ]

Description

setup provides a graphical installation interface for EPM-generated portable installation packages. It presents a step-by-step dialog for collecting a list of packages to install and accepting any license agreements for those packages.

setup searches for products in the current directory or the directory specified on the command-line.

Installation Types

The default type of installation is "custom". That is, users will be able to select from the list of products and install them.

setup also supports other types of installations. The setup.types file, if present, defines the other installation types.

See Also

epm(1) - create software packages.
setup.types(5) - epm gui setup types file format.

Copyright

Copyright 1999-2003 by Easy Software Products, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.


C - List File Reference

This appendix provides a complete reference for the EPM list file and setup types formats.

The EPM List File Format

Each EPM product has an associated list file that describes the files to include with the product. Comment lines begin with the "#" character and are ignored. All other non-blank lines must begin with a letter, dollar sign ("$"), or the percent sign ("%").

List File Directives

The following list describes all of the list file directives supported by EPM:

List Variables

EPM maintains a list of variables and their values which can be used to substitute values in the list file. These variables are imported from the current environment and taken from the command-line and list file as provided. Substitutions occur when the variable name is referenced with the dollar sign ($):

Variable names can be surrounded by curley brackets (${name}) or alone ($name); without brackets the name is terminated by the first slash (/), dash (-), or whitespace. The dollar sign can be inserted using $$.

The setup.types File

The EPM setup program normally presents the user with a list of software products to install, which is called a "custom" software installation.

If a file called setup.types is present in the package directory, the user will instead be presented with a list of instal- lation types. Each type has an associated product list which determines the products that are installed by default. If a type has no products associated with it, then it is treated as a custom installation and the user is presented with a list of packages to choose from.

The setup.types file is an ASCII text file consisting of type and product lines. Comments can be inserted by starting a line with the pound sign (#). Each installation type is defined by a line starting with the word TYPE. Products are defined by a line starting with the word INSTALL:

In the example above, three installation types are defined. Since the last type includes no products, the user will be presented with the full list of products to choose from.


D - Release Notes

This appendix lists the change log for each release of the EPM software.

Changes in EPM v3.7

Changes in EPM v3.6

Changes in EPM v3.5.1

Changes in EPM v3.5

Changes in EPM v3.4

Changes in EPM v3.3

Changes in EPM v3.2.1

Changes in EPM v3.2

Changes in EPM v3.1

Changes in EPM v3.0

Changes in EPM v2.8

Changes in EPM v2.7

Changes in EPM v2.6

Changes in EPM v2.5

Changes in EPM v2.4

Changes in EPM v2.3

Changes in EPM v2.2

Changes in EPM v2.1

Changes in EPM v2.0

Changes in EPM v1.7

Changes in EPM v1.6

Changes in EPM v1.5

Changes in EPM v1.4

Changes in EPM v1.3

Changes in EPM v1.2

Changes in EPM v1.1