Xdebug

If Xdebug saves you time, please consider supporting the project.

About

Xdebug is an extension for PHP to assist with debugging and development. It contains a single step debugger to use with IDEs; it upgrades PHP's var_dump() function; it adds stack traces for Notices, Warnings, Errors and Exceptions; it features functionality for recording every function call and variable assignment to disk; it contains a profiler; and it provides code coverage functionality for use with PHPUnit.

The documentation contains installation instructions.

Announcements

[2019-10-31] - Xdebug 2.8.0 is out!

This is the first release of the Xdebug 2.8 series.

This version of Xdebug primarily adds support for PHP 7.4. It also improves the reliability of honouring breakpoints when PHP's internals generate code with different line numbers than you would expect. This feature requires support in your IDE.

Beyond this, this release also fixes numerous memory leaks, bugs, and incompatibilities with Zend Opcache. Everybody is encouraged to upgrade to this new version.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

This release also contains contributions by: Arnold Daniels, Christoph Becker, GCth, Joe Watkins, Remi Collet, and Vincent Monier — Thanks!

[2019-08-26] - Xdebug 2.8.0beta2 is out!

This is the second beta release in the Xdebug 2.8 series.

The 2.8 series primarily adds support for PHP 7.4, but also improves Xdebug's breakpoint functionality by adding support for the 'resolved_breakpoint' flag.

This second beta release fixes a dozen bugs, and switches the Microsoft Compiler version back to Visual Studio 2017, which is also used for the newly released PHP 7.4.0beta4.

Everybody is encouraged to try out this new version, but please be aware that Xdebug 2.8.0beta2 is not fully ready. Which means that crashes can still occur. If you find any problems, please report them to the issue tracker.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

Some time ago, I wrote a blog post "The Xdebug Experience" about the future of Xdebug, and how you can help through becoming a supporter on Patreon. I also write monthly reports on Xdebug's progress on my website.

[2019-07-25] - Xdebug 2.8.0beta1 is out!

This is the first beta release in the Xdebug 2.8 series.

The 2.8 series primarily adds support for PHP 7.4, but also improves Xdebug's breakpoint functionality by adding support for the 'resolved_breakpoint' flag.

This first beta release makes Xdebug compile with the PHP 7.4beta1 release, and also fixes a handful of other bugs.

Everybody is encouraged to try out this new version, but please be aware that Xdebug 2.8.0beta1 is not fully ready. Which means that crashes can still occur. If you find any problems, please report them to the issue tracker.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

This release also contains contributions by: Joe Watkins, and GCth — Thanks!

[2019-06-28] - Xdebug 2.8.0alpha1 is out!

This is the first alpha release in the Xdebug 2.8 series.

The 2.8 series primarily adds support for PHP 7.4, but also improves Xdebug's breakpoint functionality by adding support for the 'resolved_breakpoint' flag. When IDEs opt in into this flag, Xdebug runs additional logic to make sure that it tries to find the right line to break on, even if you are setting a breakpoint on a line of code, where the PHP engine doesn't think there is any code. Expect an article on my website soon.

Everybody is encouraged to try out this new version, but please be aware that Xdebug 2.8.0alpha1 is not fully ready. Which means that crashes can still occur. If you find any problems, please report them to the issue tracker.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

This release also contains contributions by: Arnold Daniels, and Christoph M. Becker — Thanks!

[2019-05-06] - Xdebug 2.7.2 is out!

This is the second (and likely last) bug fix release of the Xdebug 2.7 series.

This release disables Zend OPCache when the step debugger is active, and fixes debugging issues with 'property_set' (for setting values), remote_connect_back's IP address detection, and variable display for user defined classes that have __debugInfo().

Everybody is encouraged to upgrade to this new version.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2019-04-05] - Xdebug 2.7.1 is out!

This is the first bug fix release of the Xdebug 2.7 series.

This release addresses memory leaks, a segfault with conditional breakpoints, and a performance degradation due to excessive getpid() calls.

Everybody is encouraged to upgrade to this new version.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

This release also contains a contribution by: Kees Hoekzema — Thanks!

[2019-03-06] - Xdebug 2.7.0 is out!

This is the first release of the Xdebug 2.7 series.

This version of Xdebug primarily adds support for PHP 7.3. It also adds support for single step debugging of forked PHP worker processes.

Beyond this meagre set of features, this release also fixes numerous memory leaks, bugs, and incompatibilities with Zend Opcache. Everybody is encouraged to upgrade to this new version.

The full list of changes can be found on the updates page.

I have written a blog post "The Xdebug Experience" about the future of Xdebug, and how you can help through becoming a supporter on Patreon.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

This release also contains contributions by: Christoph Becker, Peter Kokot, Philip Hofstetter, Remi Collet, and Thomas Vanhaniemi — Thanks!

[2019-02-15] - Xdebug 2.7.0RC2 released!

This is the second (and hopefully last) release candidate for Xdebug 2.7.

This release addresses a number of issues, including an issue where Xdebug would instantaneously crash PHP due to ABI conflicts in PHP itself. Although this well be addressed in PHP 7.3.3 and later, Xdebug includes a work around.

The full list of changes can be found on the updates page.

Please test this release with PHP 7.3, and if you find problems, please report them through the issue tracker.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2019-02-01] - Xdebug 2.7.0rc1 released!

This is the first (and hopefully last) release candidate for Xdebug 2.7.

This release addresses a number of issues, with the most notable one being an issue where Xdebug causes crashes due to a bug in OPcache in PHP 7.3.0 and PHP 7.3.1. Xdebug now works around the issue when it is needed.

The full list of changes can be found on the updates page.

Please test this release with PHP 7.3, and if you find problems, please report them through the issue tracker.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2018-09-20] - Xdebug 2.7.0beta1 released!

This is the first release with PHP 7.3 support.

This release only updates Xdebug to support PHP 7.3. There are a few known issues that still need to be addressed, such as a problem with Code Coverage and multiple catches. These will be addressed in a future beta or Release Candidate.

The full list of changes can be found on the updates page.

Please test this release with PHP 7.3, and if you find problems, please report them through the issue tracker.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

This release features community contributions by:

Christoph M. Becker

[2018-08-01] - Xdebug 2.6.1 released!

This is the first bug fix release of the 2.6 series.

This release fixes several crash bugs, a memory leak, and an issue with step debugging where object properties with numerical names could not be inspected.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

This release features community contributions by:

Philip Hofstetter

[2018-04-01] - Xdebug 2.7.0alpha1 is out!

This is an alpha release of the Xdebug 2.7 series.

The main reason for this release is the introduction of a resolution to an issue, in which Xdebug now allows for working remote debugging of scripts that fork processes. Previously, Xdebug got confused when an already existing debugging connection was shared among parent and child processes. This releases addresses this by attempting to create a separate connection for each child process. The resolution of this issue was sponsored by Brad Wilson.

This release also contains some fixes made on the 2.6 branch.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2018-01-29] - Xdebug 2.6.0 is out!

This is the first release of the Xdebug 2.6 series.

With this release, PHP 5 is no longer supported. In order to benefit from bug fixes and new features in Xdebug, you will also have to upgrade to PHP 7, preferably PHP 7.2.

Besides support for PHP 7.2, Xdebug 2.6 adds a significant set of new features, as you can see on the updates page. A few highlights are: support for profiling memory usage, configurable formatting of filenames, statistics of PHP's Garbage Collector, and for the "remote" debugger: "Notice" and "Warning" notifications are sent to the IDE, support for low-ASCII characters in property names and array keys, support for NULL characters in variable and property names, and configurable connection timeouts.

The full list of changes can be found on the updates page, and I have written a blog post detailing many of the new additions.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

This release also contains contributions by: Arnaud Gendre, Benjamin Eberlei, Chris Wright, Emir Beganović, Frode E. Moe, Kalle Sommer Nielsen, Nikita Popov, Sara Golemon, Remi Collet, and Zaid Al Khishman — Thanks!

[2018-01-23] - Xdebug 2.6.0RC2 is out!

This release fixes a packaging issue in Xdebug 2.6.0RC1 only.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2018-01-22] - Xdebug 2.6.0RC1 is out!

This is the first, and likely last, release candidate of Xdebug 2.6.0. The major change in this release is the addition of Garbage Collection statistics functionality, contributed by Benjamin Eberlei.

Besides this addition, several bug fixes to Xdebug's remote debugging and code coverage have been addressed. This is not a final release, but if no problems are found it will be released as Xdebug 2.6.0 in about a week's time. Please test Xdebug 2.6.0RC1 thoroughly, and report any issues through the issue tracker.

The full list of changes can be found on the updates page.

The source code and Windows binaries can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2017-12-28] - Xdebug 2.6.0beta1 is out!

This is the first beta release with support for PHP 7.2, which came out last month. This is not a final release, and it does have known issues, including a crash bug.

In addition to the changes in Xdebug 2.6.0alpha1, this beta release adds filter support for tracing, stack traces and code coverage. Preliminary tests shows that with the right filter this should speed up code coverage generated through PHPUnit/PHP Code Coverage significantly. This release also fixes a few bugs, and it includes configuration to run Xdebug's test suite automatically on Windows through AppVeyor. Please note, that Xdebug 2.6 does no longer support PHP 5.

The full list of changes can be found on the updates page.

This release does come with several unresolved issues, and not all features have been implemented yet. Xdebug 2.6.0 will be released in due course.

The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2017-12-02] - Xdebug 2.6.0alpha1 is out!

This is the first release with support for PHP 7.2, which came out last week. This is not a final release, and it does have known issues, including a crash bug.

With this release, PHP 5 is no longer supported. In order to benefit from bug fixes and new features in Xdebug, you will also have to upgrade to PHP 7, preferably PHP 7.2.

Besides support for PHP 7.2, it also adds a significant set of new features, as you can see on the updates page. A few highlights are: support for profiling memory usage, configurable formatting of filenames, and for the "remote" debugger: "Notice" and "Warning" notifications are sent to the IDE, support for low-ASCII characters in property names and array keys, and configurable connection timeouts. You can follow the progress on the roadmap page.

This release does come with several unresolved issues, and not all features have been implemented yet. Xdebug 2.6.0 will be released in due course, with additional features such as filters for tracing, stack traces, and code coverage.
Windows DLLs are not yet available, but will be added once AppVeyor starts working again.

The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2017-06-21] - Xdebug 2.5.5 is out!

This release fixes three issues with Code Coverage where Xdebug did not mark the covered lines correctly.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2017-05-15] - Xdebug 2.5.4 is out!

This release fixes an infinite loop with Xdebug 2.5.3 if the pcntl extension is not statically loaded and set_time_limit is used, as well as crash on 32 bit platforms, and another issue with code coverage.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2017-04-18] - Xdebug 2.5.3 is out!

This release fixes a crash bug in Xdebug 2.5.2 if the pcntl extension is not statically loaded.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2017-04-17] - Xdebug 2.5.2 is out!

This release fixes numerous fixes with the 2.5.1 release. Most notable are compatibility fixes with OPcache and code coverage.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2017-02-26] - Xdebug 2.5.1 is out!

This release fixes numerous fixes with the 2.5.0 release
The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2016-12-04] - Xdebug 2.5.0 is out!

This is the first released to support PHP 7.1.

Besides support for PHP 7.1, it also adds support for IPv6. A few bugs have been fixed as well.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2016-11-12] - Xdebug 2.5.0RC1 is out!

This is the first released candidate for the Xdebug 2.5 series. This series adds support for PHP 7.1, and IPv6.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2016-08-02] - Xdebug 2.4.1 is out!

This first bug fix release for Xdebug 2.4 fixes a bunch of crashes and other issues that were introduced by supporting PHP 7.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2016-03-03] - Xdebug 2.4.0 is out!

This new release brings support for PHP 7, and a few new features. The new function monitoring allows you to define a list of functions with xdebug_start_function_monitor(), and then every time that function is used, it's calling location is recorded. And the new xdebug.show_error_trace setting allows you to show a stack trace for every Error (throwable).

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2016-01-25] - Xdebug 2.4.0RC4 is out!

This is the fourth and hopefully last release candidate of the 2.4 series. The 2.4 series adds support for PHP 7 and is in large parts a rewrite of the earlier code base to support PHP 5.4 through PHP 7.0. This release candidate fixes among others, a bunch of crashes, and adds support for PHP 7.1.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2015-12-12] - Xdebug 2.4.0RC3 is out!

This is the third release candidate of the 2.4 series. The 2.4 series adds support for PHP 7 and is in large parts a rewrite of the earlier code base to support PHP 5.4 through PHP 7.0. This release candidate fixes weird optimisation issues with GCC 4.8, and should make everything work will on Windows due to issue with changes in "long".

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2015-12-02] - Xdebug 2.4.0RC2 is out!

This is the second release candidate of the 2.4 series. The 2.4 series adds support for PHP 7 and is in large parts a rewrite of the earlier code base to support PHP 5.4 through PHP 7.0. This release candidate fixes a few bugs found in the 2.4.0RC1 release. Among others problems with exceptions, crashes, and it turns on the showing of file/line information with var_dump()'s by default.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2015-11-21] - Xdebug 2.4.0RC1 is out!

This is the first release candidate of the 2.4 series. The 2.4 series adds support for PHP 7 and is in large parts a rewrite of the earlier code base to support PHP 5.4 through PHP 7.0. This release candidate fixes a few bugs found in the 2.4.0beta1 release. Among others problems with code coverage, tracing and remote debugging. It also adds support for Windows.

The full change log can be found on the updates page. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2015-11-05] - Xdebug 2.4.0beta1 is out!

This is the first beta release of the 2.4 series. The 2.4 series adds support for PHP 7 and is in large parts a rewrite of the earlier code base to support PHP 5.4 through PHP 7.0.

A small number of fixes, notably regarding performance for code coverage have been included as well.

The full change log can be found on the updates page. Windows binaries will be added in 2.4.0beta2, which will be available in the near future. The source code can be found on the downloads page, and as usual, Xdebug is installable through PECL.

[2015-06-19] - Xdebug 2.3.3 is out!

This is a bug-fix release for the 2.3 series, and addresses crashes with path and branch coverage, debugging issues with SPL classes, and other stability issues. It also provides a 15-20% speed up for tracing.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2015-03-22] - Xdebug 2.3.2 is out!

This is a minor bug-fix release for the 2.3 series, and addresses crashes with path and branch coverage.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2015-02-24] - Xdebug 2.3.1 is out!

This is a minor bug-fix release for the 2.3 series, and addresses a crash and broken triggers for profiling and tracing.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2015-02-22] - Xdebug 2.3.0 is out!

This release adds a whole lot of new features to Xdebug. The main new features are support for path and branch coverage for code coverage, improvements for remote debugging with exceptions, shared-secret triggers for profiling and tracing, a new variable formatting option (serialized), and improvements in the size of profiling files and break point checking.

This release drops support for PHP 5.2 and PHP 5.3, and raises the default max nesting level to 256. It also fixes a bunch of issues as found in Xdebug 2.2.7.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page. A series of blog posts on the new features will soon follow on http://derickrethans.nl, as well as updated documentation.

[2015-01-22] - Xdebug 2.2.7 is out!

This is a bug-fix release for the 2.2 series, and addresses a few crashes.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2014-11-14] - Xdebug 2.2.6 is out!

This is a bug-fix release for the 2.2 series, and addresses the issue with debug connections only working once, or not at all.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2014-04-29] - Xdebug 2.2.5 is out!

This is a bug-fix release for the 2.2 series, and addresses the issue with debug connections only working once, or not at all.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2014-02-28] - Xdebug 2.2.4 is out!

This is a bug-fix release for the 2.2 series, and addresses a few minor issues.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2013-05-22] - Xdebug 2.2.3 is out!

This is a bug-fix release for the 2.2 series. The main feature is support for PHP 5.5 but it also addresses a few minor other issues.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2013-03-23] - Xdebug 2.2.2 is out!

This is a bug-fix release for the 2.2 series. The main feature is support for PHP 5.5(beta1) but it also addresses a few minor other issues.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2012-07-15] - Xdebug 2.2.1 is out!

This is a bug-fix release for the 2.2 series. It addresses a few issues with debugging properties and static properties, as well as a few minor other things. You are strongly recommended to upgrade due to increased stability.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2012-05-08] - Xdebug 2.2.0 is out!

This is the first version of Xdebug that supports PHP 5.4. Besides PHP 5.4 support, this release introduces a few new features into Xdebug. The main one is support for an overloaded var_dump() on the command line. For other improvements, please refer to the updates page.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2012-04-22] - Xdebug 2.2.0RC2 is out!

This is the second release candidate of Xdebug 2.2 which addresses a few things that were found in the first release candidate.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

Please note that this is a release candidate and not guaranteed to be free of bugs. If you have issues, please file them in the issue tracker. Please try to provide enough information so that I can reproduce the issue. See here for some hints.

[2012-03-13]

Xdebug 2.2.0RC1 is out! This is the first release candidate of Xdebug 2.2. The main feature is PHP 5.4 support, but there a lot of other changes as well. There are a few performance improvements, as well as some new functionality for developing on the command line.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

Please note that this is a release candidate and not guaranteed to be free of bugs. If you have issues, please file them in the issue tracker. Please try to provide enough information so that I can reproduce the issue. See here for some hints.

[2012-03-12]

Xdebug 2.1.4 is out! This is the fourth bug fix release of Xdebug 2.1. Xdebug 2.1.4 addresses a few bugs. It is likely going to be the last release for the Xdebug 2.1 series as Xdebug 2.2 is coming up soon. Please note that Xdebug 2.1 is not compatible with PHP 5.4.

The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2012-01-25]

Xdebug 2.1.3 is out! This is the third bug fix release of Xdebug 2.1. Xdebug 2.1.3 addresses quite a few bugs and other issues. The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2011-07-28]

Xdebug 2.1.2 is out! This is the second bug fix release of Xdebug 2.1. Xdebug 2.1.2 addresses three issues for code coverage as well as a few other minor issues. functionality. The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2011-03-28]

Xdebug 2.1.1 is out! This is the first bug fix release of Xdebug 2.1. Xdebug 2.1.1 addresses issues mainly in the profiler and debugger functionality. This includes the KCacheGrind issue. The full change log can be found on the updates page and the source code and Windows binaries can be found on the downloads page.

[2011-03-22]

I just released Xdebug 2.1.1rc1 - which addresses issues mainly in the profiler and debugger functionality. This includes the KCacheGrind issue. The full change log can be found on the updates page and the source code can be found on the downloads page.

[2010-06-29]

I have just released Xdebug 2.1.0. Xdebug 2.1 includes many new features that have been added over the past three years. Xdebug 2.1 also provides PHP 5.3 support. Among the new features, it includes variable tracing in function traces, a new setting that tries to call back the same IP address for remote debugging, a function to return all explicitly and implicitly set headers, a setting that makes PHP ignore the @ operator and many other smaller features. A huge amount of bugs have been addressed as well. For a full list, please refer to the updates page.

You can find a more thorough description of all new features at http://derickrethans.nl/xdebug-2.1-released.html.

[2010-04-06]

I just released Xdebug 2.1.0rc1 - which addresses a few issues that were still left. The full change log can be found on the updates page.

[2010-02-27]

I just released Xdebug 2.1.0beta3 - which features a few crashes as well as the "header" problem. The full change log can be found on the updates page. This will be the last beta version, and the next release will be Xdebug 2.1.0rc1.

[2010-02-03]

I just released Xdebug 2.1.0beta2 - which features a few bug fixes, as well as returned Windows binaries for PHP 5.3/VC6. The full change log can be found on the updates page.

[2010-01-03]

I just released Xdebug 2.1.0beta - which features a whole list of new features, for example PHP 5.3 support, variable assignment tracing, collection of headers and error messages for later use and improved code coverage. The full change log can be found on the updates page.

[2009-07-03]

I just released Xdebug 2.0.5 - which features mostly bugfixes. The whole change log can be found on the updates page.

[2009-01-02]

I moved the downloads from the right side bar to their own page to provide an easier way of downloading Xdebug releases.

[2008-12-30]

I just released Xdebug 2.0.4 - which features bugfixes and PHP 5.3 compatibility. The whole change log can be found on the updates page.

As with most open source projects, it's very hard to know who are actually the users of the project. As I would like to know my users better, I would invite everybody who finds Xdebug useful to send me a postcard with their location. (Address is here at the top of the page). I am looking forwards to find out who you are!

[2008-04-09]

I just released Xdebug 2.0.3 - which features bugfixes and PHP 5.3 compatibility. The whole change log can be found on the updates page.

[2007-11-11]

I just released Xdebug 2.0.2 - which features bugfixes related to the improved code coverage support that was introduced in 2.0.1. The whole change log can be found on the updates page.

As with most open source projects, it's very hard to know who are actually the users of the project. As I would like to know my users better, I would invite everybody who finds Xdebug useful to send me a postcard with their location. (Address is here at the top of the page). I am looking forwards to find out who you are!

[2007-10-20]

I just released Xdebug 2.0.1 - which features some bugfixes, while the major thing is the immense increase in performance of code coverage. The whole change log can be found on the updates page.

[2007-07-18]

It is finally here, Xdebug 2.0.0 has arrived! After about four years of work I finally found it ready to release. Have fun! After almost four years of work, Xdebug 2 is finally ready. With improved functionality and many new features it is ready to totally change the way you develop in PHP. Some of the new features and updates include improved stack traces, execution traces to files, code coverage analysis and much improved remote debugging support. Xdebug's documentation has also been rewritten for more clarity.

[2007-05-17]

Xdebug version 2.0.0RC4 has been released. There are two major changes that needs some introduction. The first one is that the profiler_output_name and trace_output_name settings no longer accept simple values such as "crc32", but instead now accept different format specifiers, very similar to printf() and strftime() modifiers. This will show up in the newly organized documentation very soon as well.

[2007-01-31]

Xdebug version 2.0.0RC3 has been released. This release fixes a number of bugs and should be the last release candidate before 2.0.0 is released. Now is your time to test!

[2006-12-24]

Xdebug version 2.0.0RC2 has been released. This release features many internal clean ups and bug fixes. Some issues with the newly introduced layout for stack traces where also addressed.

[2006-10-08]

Xdebug version 2.0.0RC1 has been released. This release includes some performance enhancing patches and fixes some problems in the previous beta releases. It also features a new layout for stack traces and features much better code-coverage support.

[2006-06-30]

Xdebug version 2.0.0beta6 has been released. This release includes some performance enhancing patches and fixes some problems in the previous beta releases.

[2005-12-31]

Xdebug version 2.0.0beta5 has been released. This release fixes some problems in the previous beta releases.

[2004-11-29]

Xdebug version 2.0.0beta2 has been released. This release fixes some problems in the beta1 release.

[2004-09-15]

Xdebug version 2 has finally reached beta status. We celebrate that with the release of 2.0.0beta1. For a full changelog, see the updates page.

[2004-06-30]

Xdebug version 1.3.2 has been released. This release will compile against the latest CVS of PHP 5 again.

[2004-04-06]

Xdebug version 1.3.1 has been released. This release just includes some small bugfixes:

Fixed profiler to aggregate class/method calls correctly. (Robert Beenen)

Fixed debugclient to initialize socket structure correctly. (Brandon Philips and David Sklar)

GDB: Fixed bug where the source file wasn't closed after a "source" command. (Derick)

[2004-04-01]

Added archives for the Xdebug General and Xdebug Development mailinglists.

[2003-12-28]

Added the Xdebug license to this website.

[2003-12-26]

Xdebug version 1.3.0 has been released. Changes since 1.3.0rc1 includes numerous bugfixes and the addition of file/line information to signals. See the full Changelog to find out what's new.

[2003-10-09]

Together with Shane Caraveo from ActiveState a new protocol, DBGp, was developed. This will be implemented for Xdebug 2 and is a true multi-language protocol. This means that a client written for Xdebug 2 will also work in combination with the Perl, Python, Tcl and XSLT debuggers from Active State. For a description of (a draft) of this new protocol, see the documentation - protocol page. The development of the protocol is sponsored by Maguma and will also be implemented in Maguma Studio 2.

[2003-09-18]

Xdebug version 1.3.0rc1 has been released. This new version's main enhancements are the increased performance and additional commands for remote debugging (conditional breakpoints, "full" backtrace, show local variables) See the full Changelog to find out what's new.

[2003-07-16]

Xdebug version 1.3.0 will have greatly improved performance over older versions. Changing the folding (creating a string out of a variable) is now only done when it is required: when being in trace mode (started from xdebug_start_trace(), or on error. See the full Changelog for information on other improvements.

[2003-04-21]

Xdebug version 1.2.0 has been released. This release adds one extra function in comparison to 1.2.0rc2, xdebug_call_class(). See the full Changelog for more information.

[2003-04-15]

The second release candidate of Xdebug version 1.2.0 has been released. This RC fixes a few bugs in RC1. See the full Changelog for more information.

[2003-04-06]

Xdebug version 1.2.0rc1 has finally been released. This new version's main enhancements are the profiling support and code coverage. See the full Changelog to find out what's new.

[2003-01-16]

Xdebug supports Zend Engine 2! With the updated OO functionality in this new engine for PHP Xdebug wouldn't compile anymore, with this update it works again. Namespaces are not yet supported but will be implemented soon.