I'm using xdebug v3 and at every execution of a test suite (in debug mode) I get 5 lines of (unnessesary & distracting) warning:
[13-Feb-2023 10:39:14 UTC] Xdebug: [Config] The setting 'xdebug.remote_autostart' has been renamed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-xdebug.remote_autostart (See: https://xdebug.org/docs/errors#CFG-C-CHANGED)
[13-Feb-2023 10:39:14 UTC] Xdebug: [Config] The setting 'xdebug.remote_enable' has been renamed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-xdebug.remote_enable (See: https://xdebug.org/docs/errors#CFG-C-CHANGED)
[13-Feb-2023 10:39:14 UTC] Xdebug: [Config] The setting 'xdebug.remote_host' has been renamed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-xdebug.remote_host (See: https://xdebug.org/docs/errors#CFG-C-CHANGED)
[13-Feb-2023 10:39:14 UTC] Xdebug: [Config] The setting 'xdebug.remote_mode' has been renamed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-xdebug.remote_mode (See: https://xdebug.org/docs/errors#CFG-C-CHANGED)
[13-Feb-2023 10:39:14 UTC] Xdebug: [Config] The setting 'xdebug.remote_port' has been renamed, see the upgrading guide at https://xdebug.org/docs/upgrade_guide#changed-xdebug.remote_port (See: https://xdebug.org/docs/errors#CFG-C-CHANGED)
The warnings seem to be caused by the VS PHP extension that invokes xdebug with both v2 and v3 parameters (instead of detecting which version and supply only a single set).
Note: debugging works like charm (despite the warnings).