---
title: "JSU 2.5.2 Release Notes"
canonical: "https://support.appfire.com/space/JSU/12681540/JSU%202.5.2%20Release%20Notes"
format: markdown
---
**28th June 2018**

**Bugfix**

- Fixed issue 'Action xxx is invalid'

### Preconditions for Post Functions

<span style="color: #333333">Resolve your most complex cases with the new </span>[<span style="color: #333333">JSU Preconditions</span>](https://appfire.atlassian.net/wiki/spaces/JSU/pages/12682104)<span style="color: #333333">.</span>

<span style="color: #333333">Those are conditions or predicators that should always be true just prior to the execution of a post function. </span><span style="color: #333333">The result of a precondition can be used in a later post function to decide, if this post function will be executed at all or not.</span>

<span style="color: #333333">Define your complex conditions directly in JIRA's workflow GUI easier.</span>

- <span style="color: #333333">No complicated scripts.</span>
- Users don't need to worry about complex business rules any more. Everything automated in the workflow with the new JSU.

<span style="color: #333333">Take your JIRA to the next level with JSU 2.5</span>

<span style="color: #333333">Enjoy!</span>