Nextflow DSL1 is no longer supported --How to upgrade script to DSL2?

HI experts, i am very new to all of these things, and as i am trying to run tractoflow this is what it says. How do i move forward with this? where and what to use to upgrade the script to DSL2 or is it better to just downgrade the nextflow version??

nextflow run tractoflow/main.nf --help

N E X T F L O W <~ version 25.10.4

Nextflow DSL1 is no longer supported — Update your script to DSL2, or use Nextflow 22.10.x or earlier

Hi @C_K ,

Tractoflow uses Nextflow DSL1. I suggest you download/use this version 21.10.6.

Let me know if you have any issues.

Best,
Arnaud