PHP sensor releases

Instana® monitors PHP applications by using the Instana PHP sensor and tracer. The sensor provides insights into the health and performance of PHP applications.

For more information, see Monitoring PHP.

For more information about tracer releases, see PHP Tracer releases.

See the following sections for the latest updates on PHP sensor, PHP-FPM sensor and PHP profile sensor:

PHP sensor

The following releases offer updates for PHP sensor:

Release 2.6.14

Instana released PHP sensor 2.6.14 on 14 July 2026.

Improvements

The PHP sensor now installs PHP Tracer 5.9.1 by default.

Release 2.6.13

Instana released PHP sensor 2.6.13 on 3 July 2026.

Improvements

This release includes internal improvements in YAML configuration management.

Release 2.6.12

Instana released PHP sensor 2.6.12 on 22 June 2026.

Features

The PHP sensor passes the stack trace configuration from com.instana.tracing.global section in the agent configuration.yaml to the PHP Tracer.

Improvements

The PHP sensor now installs PHP Tracer 5.9.0 by default.

Release 2.6.10

Instana released PHP sensor 2.6.10 on 11 June 2026.

Improvements

  • The PHP sensor can now monitor PHP runtimes running as systemd services that are hardened using ProtectSystem directive.
  • This release improves non-root agent support.
Fixes

The PHP sensor now delays certain tasks by 30 seconds for Apache on Windows environments. This ensures Apache worker processes are running, allowing the sensor to correctly retrieve Apache and PHP configuration details.

Release 2.6.6

Instana released PHP sensor 2.6.6 on 28 April 2026.

Improvements

This release installs PHP Tracer 5.8.1 by default.

Release 2.6.5

Instana released PHP sensor 2.6.5 on 8 April 2026.

Fixes

This release fixes an interrupted exception that occurred during HTTPd module parsing on Windows.

Release 2.6.4

Instana released PHP sensor 2.6.4 on 8 April 2026.

Improvements

You can monitor PHP in non-root agent installations on Linux hosts.

Limitations

  • You cannot monitor PHP runtimes in rootless Podman containers.

Release 2.6.1

Instana released PHP sensor 2.6.1 on 1 April 2026.

Fixes

This release fixes an issue where Apache HTTPd failed to correctly parse the Include directive that contained the wildcard character *.

Release 2.6.0

Instana released PHP sensor 2.6.0 on 26 February 2026.

Features

The sensor now supports the span filtering feature by passing the filter rules configured incom.instana.tracing.filter section in the agent configuration.yaml file to the PHP Tracer.

For more information, see Filtering spans.

Release 2.5.2

Instana released PHP sensor 2.5.2 on 29 January 2026.

Features

The PHP sensor now supports HTTP endpoint filtering by passing the filter rules configured in com.instana.tracing.filter section in the agent configuration to the PHP Tracer. For more information, see Filtering spans.

Fixes

This release correctly adds the instana.span_filter_config_file INI setting to the main php.ini file when you update the PHP sensor from versions earlier than 2.2.5.

Release 2.4.0

Instana released PHP sensor 2.4.0 on 5 January 2025.

Features

PHP sensor 2.4.0 provides the following features:

  • Supports PHP 8.5 runtime.
  • The sensor installs PHP Tracer when it detects the PHP 8.5 runtime.

Fixes

PHP sensor 2.4.0 provides the following fixes:

  • PHP sensor does not override the owner and group permissions of the main php.ini file when updating PHP Tracer INI settings.
  • Instana PHP Tracing extension version updates correctly after you install it in the PHP runtime entity for Apache with mpm_prefork configuration.

PHP-CGI sensor

The following releases offer updates for PHP-CGI sensor.

Release 1.1.3

Instana released PHP-CGI sensor 1.1.3 on 12 June 2025.

Improvements

This release provides the followings enhancements:

  • Maps the PHP services running in IIS to the IIS Runtime entity.
  • Fixes the auto discovery of PHP-CGI SAPI processes in Linux.

Release 1.1.1

Instana released PHP-CGI sensor 1.1.1 on 19 May 2025.

Features

You can now use PHP-CGI SAPI on Windows hosts.

PHP-FPM sensor

The following releases offer updates for PHP-FPM sensor:

Release 1.4.6

Instana released PHP-FPM sensor 1.4.6 on 11 June 2026.

Improvements

This release adds support for monitoring PHP-FPM runtimes that run as systemd services hardened with the ProtectSystem directive.

Release 1.4.5

Instana released PHP-FPM sensor 1.4.5 on 2 June 2026.

Fixes

This release fixes the following vulnerability issue:
  • CVE-2026-45205

Release 1.4.3

Instana released PHP-FPM sensor 1.4.3 on 8 April 2026.

Improvements

You can monitor PHP-FPM in non-root agent installations on Linux hosts.

Limitations

  • You cannot monitor PHP-FPM runtimes in rootless Podman containers.
  • You cannot monitor PHP-FPM runtimes with a TCP listen address.

Release 1.4.1

Instana released PHP-FPM sensor 1.4.1 on 1 October 2025.

Fixes

This release fixes an issue where the PHP FPM sensor failed to display FPM metrics in Kubernetes environments that use the CRI-O runtime.

Release 1.4.0

Instana released PHP-FPM sensor 1.4.0 on 26 August 2025.

Features

The sensor now includes a new PHP FPM plug-in configuration that allows you to opt in or opt out of FPM worker pool monitoring for PHP-FPM.

Release 1.3.0

Instana released PHP-FPM sensor 1.3.0 on 30 July 2025.

Improvements

The PHP-FPM sensor now uses the pm.status_listen endpoint to monitor FPM worker pools if you configure the endpoint. This improvement fixes an issue where the FPM idle worker process gets stuck forever and fails to terminate when the PHP-FPM sensor monitors worker pools with the pm FPM configuration set to ondemand.

Release 1.2.0

Instana released PHP-FPM sensor 1.2.0 on 15 July 2025.

Features

The PHP Tracer now supports FPM instrumentation for Podman containers.

Release 1.1.71

Instana released PHP-FPM sensor 1.1.71 on 09 July 2024.

Fixes

Instana fixed an issue that enables you to instantiate the PHP sensor on AIX® and Windows without first installing the PHP Tracer.

Release 1.1.70

Instana released PHP-FPM sensor 1.1.70 on 03 April 2024.

Fixes

Instana updated the org.apache.commons_commons-configuration2 library to 2.10.1 to fix security vulnerabilities CVE-2024-29131 and CVE-2024-29133.

PHP profile sensor

The following releases offer updates for PHP profile sensor.

Release 3.0.0

Instana released PHP profile sensor 3.0.0 on 09 July 2024.

Features

You can now use PHP profiling when you combine PHP profile sensor 3.0.0 with PHP Tracer 4.0.0.

Note:
Versions of PHP Tracer earlier than 4.0.0 are not compatible.