ATS Release 1.6

[Amanzi-ATS Users]

Hi all,

I'm pleased to announce the release of ATS version 1.6, which is a major release with a lot of development work.

What's Changed at a Glance

• Major refactor of transport and reactive transport, modernizing that code to include tags and support sub cycling.
• Changes in transport naming conventions, from concentration to mole fraction, to match the actual quantity used.
• Ongoing development of root fraction and granularity in transpiration
• Updates to sediment transport, bringing that capability back to ATS
• Evaluators supporting urban / managed hydrology, including pumps, gates, impervious surface, etc.
• Better CI, including CI testing both amd64 and arm64 architectures
• Improved documentation, including version-specific documentation websites

See the formal release at: https://github.com/amanzi/ats/releases/tag/ats-1.6.0

Note that this will be the version of the code used in the ATS short course, whose registration deadline is coming up soon!  See https://amanzi.github.io/ats-short-course/ats-short-course-20250908/index.html 

Thanks to all contributors to this release -- there were quite a few people who put a ton of work into this since our last release, almost a year ago!

Ethan

[Chuyang Liu]

Hi Ethan,

Thanks for the exciting update and all the hard work that went into the ATS 1.6 release—congratulations to the team!

Quick question: will there be a corresponding update to Watershed Workflow (WW) for compatibility with ATS 1.6?

Best,

Chuyang

[Coon, Ethan]

Yes, ish.  We will delink these codes — you’ll need ats_input_spec version 1.6 to match ATS v1.6.  But WW should more or less be independent of ATS.  Just the example that scripts ATS input files will be ATS version specific.

Ethan

Sent from Ethan Coon’s phone.

---

From: ats-...@googlegroups.com <ats-...@googlegroups.com> on behalf of Chuyang Liu <CL...@lbl.gov>
Sent: Friday, July 25, 2025 4:50:50 PM
To: Amanzi-ATS Users <ats-...@googlegroups.com>
Subject: [EXTERNAL] Re: ATS Release 1.6

 

Hi Ethan, Thanks for the exciting update and all the hard work that went into the ATS 1. 6 release—congratulations to the team! Quick question: will there be a corresponding update to Watershed Workflow (WW) for compatibility with ATS 1. 6? Best,

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[Chuyang Liu]

Thanks for the clarification, Ethan! I am looking forward to the upcoming ATS short course!

Best,

Chuyang