> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/gridgain/gridgain-8/gridgain8-management/migration-guides.md).

# Migration Guides

Guides for migrating to GridGain 8 from other data platforms, Apache Ignite 2.x and Oracle Coherence, and for moving to GridGain 8.10 from 8.9.

This section provides guides for migrating to GridGain 8 from other data platforms. Each guide describes the differences you need to account for and the steps to move your cluster and applications across.

The following guides are available:

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[Apache Ignite 2 (GridGain 8.10)](/docs/gridgain/gridgain-8/gridgain8-management/migration-guides/apache-ignite-2x-8.10.md)
{% endcontent-ref %}
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{% column %}
How to migrate from Apache Ignite 2.18 to the GridGain 8.10 Ultimate release, with links to the step-by-step procedure and planning reference material.
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{% columns %}
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{% content-ref url="/pages/EejbIOsKKoiGUA9xpsLm" %}
[Upgrading from 8.9 to 8.10](/docs/gridgain/gridgain-8/gridgain8-management/migration-guides/gridgain-8-9-to-8-10.md)
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{% column %}
How to upgrade a GridGain 8.9.x cluster to 8.10: choosing a rolling or offline path, the step-by-step procedure with rollback, and the changes to review first.
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{% columns %}
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{% content-ref url="/pages/eABe0zFqcA6jugrACjl7" %}
[Oracle Coherence](/docs/gridgain/gridgain-8/gridgain8-management/migration-guides/oracle-coherence.md)
{% endcontent-ref %}
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{% column %}
How Oracle Coherence Data Grid concepts map to GridGain — entry processors, queries, indexing, locking, transactions, affinity colocation, and binary objects.
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