> ## Documentation Index
> Fetch the complete documentation index at: https://docs.flowx.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# FlowX.AI 5.1.5 Release Notes (LTS)

> Bug fixes and stability improvements for the FlowX.AI 5.1.x LTS line.

<Info>
  This is a **Long-Term Support (LTS)** maintenance release focusing on **bug fixes** and **stability improvements**. Upgrades from **5.1.4 → 5.1.5** are non-breaking and fully compatible.
</Info>

<Card title="Release Highlight" icon="star" iconType="duotone">
  **Maintenance Release**: FlowX.AI 5.1.5 delivers bug fixes and stability improvements:

  * Fixes for process loop rendering issues in the Angular renderer
  * Fix for subprocess output data not being returned from embedded processes
  * No breaking changes — fully compatible upgrade from 5.1.4
</Card>

***

**What's new? 🆕**

<Tabs>
  <Tab title="Highlights">
    FlowX.AI 5.1.5 delivers bug fixes and stability improvements across the platform.

    🐛 [**Bug Fixes**](#bug-fixes) — Renderer and process engine fixes for process loop scenarios

    ***

    ### **Bug Fixes**

    <Card title="Bug Fixes" icon="bug" iconType="duotone">
      <Tabs>
        <Tab title="Renderer fixes">
          Issues resolved in the Angular renderer:

          <Accordion title="Validation shown without user interaction on process loop">
            **Summary:**

            When a process loop returned to a user task for the second time, form validation errors were displayed immediately without any user interaction. Validation now correctly waits for user input before showing errors.
          </Accordion>

          <Accordion title="Action executed continuously on process loop">
            **Summary:**

            When a process loop returned to a user task that had a UI action configured on a form element, the action was executed continuously in a loop. Actions are now correctly triggered only on user interaction.
          </Accordion>
        </Tab>

        <Tab title="Process engine fixes">
          <Accordion title="Subprocess not returning output from embedded process">
            **Summary:**

            When a subprocess (call activity) was started from an embedded process, the output data was not passed back to the parent process instance after completion. Data mapping from subprocess to parent now works correctly in embedded process scenarios.
          </Accordion>
        </Tab>
      </Tabs>
    </Card>

    ***
  </Tab>

  <Tab title="Info">
    ## Additional information

    <Info>
      **Upgrade Compatibility**: FlowX.AI 5.1.5 is fully compatible with 5.1.4. No configuration changes, schema migrations, or data transformations are required.
    </Info>

    ### Compatibility

    <CardGroup cols={2}>
      <Card title="Upgrade Path" icon="arrow-up-right-dots">
        Direct upgrade from 5.1.4 → 5.1.5 with no breaking changes or configuration updates
      </Card>

      <Card title="Component Compatibility" icon="circle-check">
        Compatible with FlowX.AI SDKs (Angular/React/iOS/Android), Designer, and Database 5.1.x
      </Card>
    </CardGroup>

    ### Deployment information

    <Info>
      Standard deployment procedures apply. No special migration steps required for this maintenance release.
    </Info>

    For detailed deployment guidelines, see [Deployment Guidelines v5.1.5](./deployment-guidelines-v5.1.5).

    ### What's next

    **FlowX.AI 5.1.x LTS** will continue to receive maintenance updates focused on:

    * Security patches and vulnerability fixes
    * Stability improvements and bug fixes
    * Performance optimizations
    * Additional renderer enhancements
  </Tab>
</Tabs>