Changelog for TUFLOW Plugin v3.18
Release date: 11 November 2025
General Notes
The 3.18 release of the TUFLOW Plugin adds a critical update to the ARR to TUFLOW tool as well as fixes several minor bugs.
New Features and Enhancements
ARR to TUFLOW - Downloader Retry Loop
The ARR to TUFLOW downloader will now enter a retry loop if it fails to download data from the ARR Datahub or the BOM. It will retry the download five times, and the interval between attempts will start at five seconds and increase by five seconds each time the download fails (up to 25 seconds before the final download attempt).

ARR to TUFLOW - Use https
The ARR to TUFLOW has been switched to use https rather than http when getting data from the ARR Datahub and the BOM.
Bug Fixes
- ARR to TUFLOW - Fixed a bug where if the download failed, the log file would not be closed properly and if another subcatchment was queued, it would write continue to write to the old log file (as well as into the new log file).