Xdebug 3.4.5 Released!
This is a bug fix release.
One fix addresses crashes when using Xdebug's debugger with (nested) Fibers.
A second bug addresses an issue where, while debugging, Xdebug sometimes calls get property hooks which can then update and change the object's state.
The full list of changes can be found on the updates page: https://xdebug.org/announcements/2025-07-14
We are introducing Derick Rethans as a featured speaker of the CODING & SITE BUILDING track. Join his session “Better Debugging with Xdebug” on 16 October.
Come level up your debugging skills at DrupalCon Vienna! 
https://events.drupal.org/vienna2025/coding-site-building
In this monthly update I explain what happened with Xdebug development.
GitHub and Pro/Business supporters will get it earlier, around the first of each month.
In the last month, I spend around 22 hours on Xdebug, with 21 hours funded.
Xdebug 3.4
Native Path Mapping
Xdebug Videos
Business Supporter Scheme and Funding
Xdebug Cloud
In this monthly update I explain what happened with Xdebug development.
GitHub and Pro/Business supporters will get it earlier, around the first of each month.
In the last month, I spend around 22 hours on Xdebug, with 21 hours funded.
Xdebug 3.4
I spend most of the time this month working on bug fixes, resulting in the mid-month release of Xdebug 3.4.4. Most of the fixes revolved around exceptions and generating stack traces for them.
While fixing these, I also stumbled upon another bug. The issue here was that Xdebug wouldn't include the argument name for __invoke() call frames in its output. This only matters to PHP 8.1 and before though.
The rest of the month I spend on trying to resolve the code-coverage-with-fibers issue that I wrote about last month.
I now have a Pull Request that addresses the original bug and crash, but it does not yet fix all the problems that I discovered while running the test suite of reactphp/async with code coverage enabled. Therefore I did not manage to make another release this month addressing this issue. I hope to finalise this by the end of July.
Native Path Mapping
I have only played around with this during some demos in presentations showing this feature, but I did not make any progress with the feature itself.
It also seems that the PhpStorm team has looked at my bug report either.
Xdebug Videos
I have created one new video in the last months:
All Xdebug videos can be watched on my channel.
If you have any suggestions, feel free to reach out to me on Mastodon or via email.
Business Supporter Scheme and Funding
On GitHub sponsors, I am currently 42% towards my $2,500 per month goal, which is set to allow continued of Xdebug.
If you are leading a team or company, then it is also possible to support Xdebug through a subscription.
In the last month, no new business supporters signed up.
Besides business support, I also maintain a Patreon page, a profile on GitHub sponsors, as well as an OpenCollective organisation.
If you want to contribute to specific projects, you can find those on the Projects page.
Xdebug Cloud
Xdebug Cloud is the Proxy As A Service platform to allow for debugging in more scenarios, where it is hard, or impossible, to have Xdebug make a connection to the IDE. It is continuing to operate as Beta release.
Packages start at £49/month, and I have recently introduced a package for larger companies. This has a larger initial set of tokens, and discounted extra tokens.
If you want to be kept up to date with Xdebug Cloud, please sign up to the mailing list, which I will use to send out an update not more than once a month.
I haven’t had many problems with #PhpStorm’s #Xdebug integration in a long time. Most of the time, it Just Works, but today, it decided it doesn’t like me, and so now, my afternoon has been spent trying to get it to work again.
This is the error I see in the step debugging console. The only thing I know has changed is PhpStorm (it upgraded).
```
Cannot find file '/path/to/ramsey/uuid/Standard input code' locally.
```
I have this wired output when I run #PHPUNIT and #XDEBUG :
$ vendor/bin/phpunit --coverage-html coverage --coverage-text
PHPUnit 9.6.19 by Sebastian Bergmann and contributors.
Runtime: PHP 8.2.28 with Xdebug 3.4.4
Configuration: /.../phpunit.xml
double free or corruption (fasttop)
/bin/bash: line 158: 196 Aborted (core dumped) vendor/bin/phpunit --coverage-html coverage --coverage-text
Has someone seen this before? How to solve it? #PHP
Xdebug 3.4.4 Released!
This is a bug fix release that fixes a few crashes with regard to exceptions. This was a regression from Xdebug 3.4.3.
The full list of changes can be found on the updates page: https://xdebug.org/announcements/2026-06-12
In this monthly update I explain what happened with Xdebug development.
GitHub and Pro/Business supporters will get it earlier, around the first of each month.
In the last month, I spend around 20 hours on Xdebug, with 22 hours funded.
My apologies for missing several monthly reports.
Xdebug 3.4
Code Coverage with Fibers
Native Path Mapping
Xdebug Videos
Business Supporter Scheme and Funding
Xdebug Cloud
The slides for my "Better Debugging with @Xdebug" at @phptek are now online at https://derickrethans.nl/talks/xdebug-tek25
Xdebug 3.4.3 Released!
This is a bug fix release that fixes a few crashes.
It improves debugging with PHP 8.4's property hooks by recognising that they have code attached, and no longer throwing fatal errors or exceptions in some situations.
The full list of changes can be found on the updates page: https://xdebug.org/announcements/2025-05-14
I have created a new video!
In this video, I am showing off preliminary work on native path mapping.
This allows you to directly debug template files.
It will also work for situations where the PHP files that you edit, and which cat "compiled" into other PHP files that actually get executed.
https://www.youtube.com/watch?v=8tHKq_5-cXo (subtitles available)
For more information, and the specs, see the project page: https://xdebug.org/funding/001-native-path-mapping
@zapiz Xdebug is amazing, as others have suggested.
I also ensure full coverage with unit tests, using PHPUnit.
debug-tui now has a macos build - feel free to run a random binary from the internet and let me know if it works!
Thanks @derickr — Appreciate the well-designed API and detailed documentation.
I love #XDebug! For me it's an indispensable tool when I work on #php projects. But it's always a bit of a hassle to set it up. Maybe that's because I use Linux, maybe it's just me.
But some time ago, I started a new project, with @dunglas 's symfony-docker setup. And guess what: XDebug worked out of the box after I followed the steps in the documentation. So: a big shout-out for Kevin, for making this so easy! Thank you 
