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Builder 2.x introduced a visual layout editor and a vast array of new customisation options. For more information on what's new in Builder 2 (hey, that rhymed!) check out Migrating from 1.x.

Some Theme Builder 2 releases are tailored to specific versions of Confluence:

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An upgrade from Builder 1.x to 2.x will lose some settings due to significant architectural changes. Clients upgrading from 1.x to 2.x should contact Adaptavist Support prior to performing the upgrade or alternatively start with a fresh theme layout. See Migrating from 1.x.

Please note that Builder 2.0.x does not support clustered Confluence environments.
If you are require clustering, please use Builder 3.x or above.

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