Pimcore Migration – the Version Ladder, Step by Step.

Anyone searching "Pimcore migration" rarely means the same thing: the jump from version 10 to 12, the concrete step from 11 to 12, the switch from the classic admin interface to Pimcore Studio, or the fundamental question of whether migrating still makes sense at all or a rebuild is the better choice. This page maps the version ladder and points from here to the right deep dive.

The Pimcore Version Ladder: Where You Stand, Where You Need to Go

Platform Version 2024.4 (Pimcore 11.5) is secured with LTS support through December 2026. Platform Version 2025.1 (Pimcore 12.0) is the entry point into POCL licensing and mandatory product registration. Platform Version 2025.4 (Pimcore 12.3) is secured with LTS through December 2028 and is the last version with the classic ExtJS admin interface. Platform Version 2026.1 is Studio-only, built on Symfony 7.4 and PHP 8.4/8.5. Important for every search: there is no "Pimcore 13", the core switched to calendar-year versioning after 12.3, and the version line has been called Platform Version 2026.x ever since.

Why You Can't Skip Major Versions

There's no upgrade command that lifts a system from version 10 to 12 in one go. The path leads mandatorily through the intermediate versions, from 10 through 11 (the mandatory intermediate stop is the last 11.5 version), before the jump to 12 is even technically possible. Every intermediate version carries its own breaking changes: DBAL shifts, Symfony major versions, new native typing, changed bundle compatibility. A "10-to-12" project is therefore a consolidated plan through these layers, not a direct jump, anyone who underestimates that as a pure configuration step ends up hitting the breaking changes unplanned, mid-project.

LTS Windows at a Glance

Two dates matter for planning decisions: Platform Version 2024.4 (Pimcore 11.5) runs with support through December 2026, anyone still there today has a safe but finite window. Platform Version 2025.4 (Pimcore 12.3) runs through December 2028 and is the last version that supports the classic admin UI and Pimcore Studio side by side, relevant both for migrating Pimcore 11 to 12 and for switching from Admin Classic to Studio. Non-LTS intermediate versions lose Community support as soon as the next quarterly release ships, relevant for production systems, since they're not a stable target for longer standing times.

Rebuild or Migrate? The Decision After an Audit

Not every outdated Pimcore system should be migrated, some should be rebuilt. Migrating is the right choice when the data model and most of the custom logic are valuable and transferable. A rebuild becomes the better option when the legacy system is heavily polluted, carries dead bundles whose maintenance is winding down anyway, or the target picture looks fundamentally different from what exists. We never make this decision from the gut, but data-driven after a Pimcore Audit that surfaces data model health, bundle compatibility, and license exposure up front.

The Proof: v5 to v11 in One Go

An international publishing house with a Pimcore platform that had grown over five years across six countries had spent twelve months unsuccessfully trying to migrate with a previous vendor. As part of Upgrades & Migration, we took over the project and completed it successfully with a tailored migration plan, automated version migration to Pimcore 11, and automated regression tests.

Our Core Expertise: Rescue & Major Upgrade

Most of our migration projects rarely start on a greenfield. More often it's a system that's either stuck or hasn't been touched in years. Our method is always the same, regardless of the starting point: audit first (bundle compatibility, data model health, license exposure), then a migration plan with a clear cutover and rollback option. No promise without a prior inventory.

Two Deep Dives That Complete This Hub

For the concrete technical jump from 11 to 12, license gate, DBAL-4 fallout, collation switch, GDI prerequisites, we have a dedicated deep dive: Migrating Pimcore 11 to 12. For the separate switch from the classic admin interface to Pimcore Studio, including the dual-UI window through Platform Version 2025.4, the same applies: Switching from Admin Classic to Studio. If you're unsure which of the two questions matters first: the version jump (11 to 12) and the UI switch (Classic to Studio) are two separate decisions that can coincide in time, but don't have to. Anyone who wants to keep GPLv3 altogether instead of moving to 12 and POCL finds a third path with OpenDXP, covered in detail under Switching from Pimcore to OpenDXP.