The help shipped with DataWarrior for Linux, version 06.04.01 by January 8th, 2025 reads as if InChI 1.03 (published in 2010) is used:

This contradicts your note in 2021 on DataWarrior's discussion board DW had moved to InChI 1.06 of 2020. However, it equally is possible DW currently relies on InChI 1.07, 1.07.1, or soon moves to 1.07.2 (released January 16th, 2025, release page).
The help shipped with DataWarrior for Linux, version 06.04.01 by January 8th, 2025 reads as if InChI 1.03 (published in 2010) is used:
This contradicts your note in 2021 on DataWarrior's discussion board DW had moved to InChI 1.06 of 2020. However, it equally is possible DW currently relies on InChI 1.07, 1.07.1, or soon moves to 1.07.2 (released January 16th, 2025, release page).