MANTIS 0.6.0 introduces mixed-phase sorption modeling with dynamic partitioning ($f_{\text{dis}}$) across solid, dissolved, and bio-irrigated pools, alongside sediment age-dependent reaction rate scaling. This release significantly expands declarative plotting capabilities with automated Pint-based unit conversions for concentrations, reaction rates, and solid-phase metrics ($\text{wt}%$ and $\mu\text{mol}/\text{g}_{\text{dry}}$), as well as unit-mapped measured data comparison. It also delivers numerical stability enhancements to carbonate and sulfide speciation loops via under-relaxation, adds the new SimpleFe diagenesis benchmark model (Du et al., 2023) and irrigation examples with regression tests, and includes a rewritten comprehensive tutorial (docs/Tutorial_new.md).
