---
title: Collie Release Notes v1.5.1
description: "## Collie v1.5.1 Release Notes ### Improvements #### Attendance Transaction Processing - Improved attendance event processing to prevent **duplicate attendance transactions**. - Enhanced transaction handling to ensure attendance records are created **consistently**. - Improved the overall **reliability of attendance data**…"
url: "https://colliebots.com/docs/collie/collie-release-notes-v1-5-1/"
updated: "2026-09-10"
category: Collie
---

# Collie Release Notes v1.5.1

## Collie v1.5.1

Release Notes

### Improvements

#### Attendance Transaction Processing

- Improved attendance event processing to prevent **duplicate attendance transactions**.
- Enhanced transaction handling to ensure attendance records are created **consistently**.
- Improved the overall **reliability of attendance data** during event processing.