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Xdebug Update: September 2020

syndicated from planet-php.net on October 6, 2020

Xdebug Update: September 2020

Another monthly update where I explain what happened with Xdebug development in this past month. These will be published on the first Tuesday after the 5th of each month.

Patreon and GitHub supporters will get it earlier, on the first of each month.

I am currently looking for more funding.

You can become a patron or support me through GitHub Sponsors I am currently 59% towards my $1,000 per month goal.

If you are leading a team or company, then it is also possible to support Xdebug through a subscription.

In September, I worked on Xdebug for about 60 hours, with funding being around 70 hours. I worked mostly on the following things:

Xdebug 3

This month I mostly focussed on getting Xdebug 3 in shape for a first beta release, with all the new configuration names in place. There are now only a few tasks before I can release Xdebug 3.0.0beta1. I plan to release this around PHP 8.0RC2.

The main changes that I made was to rename the following four configuration settings, mostly to get "rid" of the remote naming:

  • xdebug.remote_hostxdebug.client_host

  • xdebug.remote_portxdebug.client_port

  • xdebug.remote_connect_backxdebug.discover_client_host

  • xdebug.remote_addr_headerxdebug.client_discovery_header

I hope that these new names are easier to explain, and of course the upgrade guide explains the changes too.

Releases

There were two Xdebug releases in September. 2.9.7 changes the step debugger to set up TCP Keepalive probes. This results in better time-out management in case network connections between Xdebug and an IDE drops.

Unfortunately this patch caused compilation issues on FreeBSD where some OS specific flags are different (but the same as OSX, which Xdebug did handle correctly). A fix for this, as well as a fix for path/branch coverage with foreach loops resulted in the 2.9.8 release. I expect to create one more release related to the TCP Keepalive addition as the current release still does not compile for AIX.

Beyond this, I do not expect any more release of the Xdebug 2.9 series unless security or crash bugs are present.

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