Determination Anywhere 2026.05 patch release notes

Please review this release note in conjunction with the Determination Enterprise Cloud release notes, which outline key updates to the core application. These include enhancements to the tax engine logic, regulatory compliance improvements, UI feature upgrades, and may also highlight defect resolutions and known issues – all of which directly impact the tax engine's functionality within Determination Anywhere (DA).

Please also refer to the statement in the main release note regarding how security vulnerabilities in the DA client‑side application are addressed.

This patch includes enhancements to key features introduced in the 2026.05 release, delivering improved functionality and usability.

This release introduces support for deploying multiple DA client clusters that share a single external database within the same tenant environment. Customers can designate one cluster as the primary cluster responsible for database migrations and configuration synchronization services, while additional clusters operate as compute-only nodes dedicated to tax calculation processing.

This deployment model helps prevent database migration conflicts, reduces infrastructure resource requirements, simplifies multi-cluster management, and improves scalability for high-volume transaction processing environments.

To use this capability, customers deploying multiple DA client clusters with a shared external database must configure the appropriate Helm chart settings during installation. The primary cluster should retain Delta DB execution and streaming services, while these services must be disabled on compute-only clusters. Customers should work with the ETS team to validate cluster roles and configuration settings prior to deployment.

With this release, the DA Bulk Import (TDSS) component now operates using a stateless deployment model when Bulk Import is enabled. Previously, the Bulk Import component was deployed as a Kubernetes StatefulSet. Beginning with this release, enabling Bulk Import by setting

bulk-import: true

in the Helm chart automatically deploys the component using the stateless model. This behavior applies to both new deployments and existing environments that use Bulk Import, with no additional configuration changes required.

This enhancement aligns the Bulk Import component with DA’s broader stateless architecture strategy, simplifying deployment management and improving operational consistency across environments.