PX-CSI Life Cycle Support Policy

The PX-CSI Life Cycle Support Policy provides you with information to help you plan, deploy, and maintain your PX-CSI software environment. Our goal is to provide transparency into release numbering, release types, field qualification levels, and support policies. This helps you plan effectively to maintain operations on the latest supported versions of our software products.

Release numbering

PX-CSI uses a three-digit version number in the X.Y.Z format:

• Year (X): The year of the release (for example, 25 for the year 2025).
• Major release (Y): Each major release within a year (for example, 25.1, 25.2, 25.4).
• Maintenance release (Z): Updates to a major release (for example, 25.8.1, 25.8.2).

A release line refers to a major release and all of its maintenance updates. For example, the release line "25.8.n" includes version 25.8 and all related maintenance releases (25.8.0, 25.8.1, through the latest maintenance release).

Release lifespan

Each release line goes through the following phases:

• Active development: The initial major release (X.Y.0) provides new features, critical bug fixes, and security issue resolutions.
• Maintenance: Maintenance releases (X.Y.Z, where Z > 0) include important bug fixes, security patches, and limited enhancements.
• Extended maintenance: After the maintenance phase, the release line enters extended maintenance. During this period, only critical security vulnerabilities are addressed. After the extended maintenance end date, you must upgrade to a supported release line.

Field qualification

All releases are validated through internal quality and regression testing before reaching general availability (GA) and becoming eligible for customer support.

Upgrade recommendations and support policy

Portworx by Pure Storage recommends the following:

• Upgrade to the latest release line to access new features, bug fixes, and security updates.
• Within a release line, upgrade to the latest maintenance release (the highest Z version) when available.

Portworx by Pure Storage supports the latest release line and the two previous release lines, as shown in the table below.

While Portworx by Pure Storage will declare release lines EOL for development purposes, we will never declare a software release line as end-of-support. Portworx will always attempt to assist any customer operating under a valid support agreement. For customers using older releases, available solutions may be limited. If a software bug or security issue affects an older release, resolving it may require upgrading to a supported version.

The following table shows currently supported release lines and their expected support timelines. Dates may change and will be announced in future release communications.

Release line	GA date	Maintenance end date	Extended maintenance end date
25.8.n	October 16, 2025	April 16, 2026	October 16, 2026
25.6.n	July 15, 2025	January 15, 2026	July 15, 2026
25.4.n	May 12, 2025	November 12, 2025	May 12, 2026

important

Portworx by Pure Storage reserves the right to update this policy at any time.

Supported Kubernetes platforms

PX-CSI is validated on specific Kubernetes distributions and versions. Before installing or upgrading PX-CSI, make sure that your Kubernetes platform and version are supported to maintain compatibility and receive full support.

For the complete list of supported Kubernetes platforms and versions, see the Supported platform versions section.