Silverstripe Upgrades

Upgrade Silverstripe for Security and Performance

Keeping your Silverstripe CMS up to date is essential for security, performance, and long‑term maintainability. Upgrading ensures your website stays compatible with modern PHP versions, supported modules, and current best practices, reducing technical debt and preventing costly issues later.

Whether you’re moving up a minor version or jumping major releases, we provide a structured, low‑risk upgrade process that keeps your site stable and future‑ready.

Why You Need a Proper Silverstripe Upgrade

A Silverstripe upgrade is more than a version bump. It’s a critical part of keeping your website secure, stable, and maintainable.

Each major release introduces improvements to performance, security, and developer tooling, while phasing out older APIs. Without regular upgrades, your site becomes harder to maintain, more vulnerable to security risks, and increasingly expensive to extend.

Upgrades can be complex, especially when custom modules, legacy code, or third‑party integrations are involved. That’s where experienced Silverstripe developers make all the difference.

What’s Involved in a Silverstripe Upgrade

A typical Silverstripe upgrade includes:

  • Updating the CMS and Framework to the latest supported versions
  • Refactoring deprecated APIs and modernising legacy code
  • Updating or replacing unsupported modules
  • Ensuring compatibility with the required PHP version
  • Reviewing and updating Composer dependencies
  • Running database schema updates and content migrations
  • Testing templates, forms, and custom functionality
  • Verifying that third‑party integrations continue to work

Every Silverstripe project is unique, so the upgrade path varies, especially when jumping major versions.

How We Approach Silverstripe Upgrades

At Innoweb, we follow a structured, low‑risk upgrade process designed to keep your site stable throughout:

  • Audit & Assessment: We review your current Silverstripe version, custom code, modules, and hosting environment to map out the safest upgrade path.
  • Staged Upgrade Process: For multi‑version jumps, we upgrade step‑by‑step through each major release to ensure compatibility and minimise disruption.
  • Code Modernisation: We replace deprecated APIs, refactor legacy patterns, and update or swap modules for supported alternatives.
  • Comprehensive Testing: All templates, forms, workflows, and integrations are thoroughly tested to ensure everything works as expected.
  • Deployment & Verification: Once deployed, we verify performance, security, and stability in the live environment.

This approach ensures your Silverstripe CMS remains fast, secure, and ready for future development.

Why Choose Innoweb for Your Silverstripe Upgrade

We’ve spent years working with Silverstripe across complex, customised, and enterprise‑level projects. Our team understands the nuances of upgrading sites with:

  • Custom modules
  • Legacy codebases
  • Bespoke workflows
  • Third‑party integrations
  • Multi‑environment deployments

Our focus is always on stability, clarity, and long‑term maintainability, so your team can keep working without disruption, and your website remains ready for future growth.

Supported Silverstripe Versions

Silverstripe’s adoption of semantic versioning (from 3.2 onward) and the newer release policy introduced with Silverstripe 5 make the upgrade cycle more predictable — but also mean older versions reach end‑of‑life sooner.

Many older sites still run on Silverstripe 2.4 or 3.x, which have been unsupported for years and urgently need upgrading.

Silverstripe Version PHP Versions End-of-life
2.4 5.2.4 - 5.6 31/03/2015
3.0 5.3.2 - 5.6 12/10/2015
3.1 5.3.2 - 5.6 31/12/2016
3.x 5.3.3 - 7.4 30/09/2021
4.x 7.4 - 8.1 10/06/2025
5.x 8.1 - 8.3 April 2027
6.x 8.3 - 8.5 April 2029

All Silverstripe 3 versions reached end‑of‑life in 2021. Silverstripe 4 reached end‑of‑life in June 2025 with the release of Silverstripe 6.

To stay secure and benefit from the latest features, we strongly recommend upgrading older sites to the latest version.

  • Upgrades from version 3 are large projects due to major architectural changes.
  • Upgrades from 4 to 5 are usually faster.
  • Upgrades from 5 to 6 require more work again due to PHP version changes and module updates.

We can review your site and provide a clear estimate for upgrading to Silverstripe 6.

Our Work

Our Latest Projects

  • pyrotek echohush

    Pyrotek

    Silverstripe site for large business

  • diasorin dna strands wikimedia

    DiaSorin TV

    Multimedia education platform for biotech company

  • dynavap light

    DynaVap

    Silverstripe performance improvements

Testimonials

What clients say

  • Florian is a highly skilled developer, a consummate professional and a pleasure to work with - quick, responsive and responsible. He understands the nature of the business and always gives his best! I highly recommend him.

    kate ayrton
    Kate Ayrton Senior Digital Producer, Red Engine SCC

    5 out of 5 stars

  • I've found Innoweb great to deal with, very responsive and collaborative in working to tight client deadlines. The team was very accommodating in working with me as the project scope grew and delivered a great suite of websites!

    Sheryl O'Brien
    Sheryl O'Brien Owner, Aunt Blanche Pty Limited

    5 out of 5 stars