---
title: "BigGantt 8.15.1 Release notes"
canonical: "https://support.appfire.com/space/DLP/332400654/BigGantt%208.15.1%20Release%20notes"
format: markdown
---
Release date: 2023-05-29

> Macro (auibutton)


> ⚠️ **Note**
> ⚠️ 
> ⚠️ **For rollback purposes**<span style="color: #333333">, please back up your database before starting the upgrade process or test the new BigPicture version on an isolated environment</span>

# Bug fixes

- Gantt - Dependencies are colored as broken in correct situations
- Gantt - Parent task in Auto bottom-up does not adjust its period if the task structure was imported from a file
- Gantt - basic task cause console error while grouping enabled
- Gantt - zoom using mousewheel is too slow on Windows OS

# Statistics

> Macro (div)
> 
> > Macro (legacy-content)
> 
> > Macro (legacy-content)


# Bug fixes list

> ℹ️ Use "Incognito mode" to open below tickets and find out the details.


> Macro (div)
> 
> > Macro (jira)

# Known issues

> Macro (jira)