History of unsatfit

• 2006-07-28: Created SWRC Fit 1.0 (土壌の物理性 version). See History and source code of the Octave version.
• 2007-02-27: Released SWRC Fit 1.1 (HESSD version) and the launched the web version.
• 2016-09-10: Released SWRC Fit 3.0; implemented the FX model was at the request of a geotechnical engineer.
• 2016-09-15: Presented SWRC Fit at the Japanese society meeting 地盤工学研究発表会.
• 2018-09-27: Released SWRC Fit 3.1 (final Octave version).
• 2021-08-13: SWRC Fit was recommended at 土壌の物理性.
• 2021-11-24: A paper written with unsatfit was published at VZJ.
• 2022-01-04: Relased unsatfit 4.0, including a new version of SWRC Fit.
• 2022-10-29: Presented at the Japanese society of Soil Physics meeting 土壌物理学会.
• 2023-01-06: Released the UNSODA viewer, a web app that displays data from UNSODA 2.0. For each dataset, water retention data is linked directly to SWRC Fit for model fitting.
• 2023-02-04: A paper introducing unsatfit was published in JHH.
• 2023-03-19: Released unsatfit 4.9 with improved dual-VG fitting and an option to change the figure legend font to better support Japanese text.
• 2023-08-30: Presented improvements to dual-VG fitting at the JSIDRE meeting 農業農村工学会.
• 2023-10-07: Released unsatfit 5.0 with support for the corrected AIC.
• 2023-12-21: Improvements to dual-VG fitting were published on 土壌の物理性 in Japanese.
• 2024-03-13: The user manual for SWRC Fit and unsatfit was published in JTUNS.
• 2024-05-14: hystfit, a tool for calculating SWRC hysteresis, was released.
• 2024-06-04: Released unsatfit 5.2; SWRC Fit now includes output options for parameter uncertainty, added at the user’s request.
• 2024-10-20: Received the JSSP award (土壌物理学会賞) from the Japanese Society of Soil Physics for the paper of dual-VG fitting. A summary report was subsequently published in Japanese.
• 2024-11-13: Presented a poster on hysteresis and hystfit at ASA, CSSA, SSSA meeting; took a photo with Rien van Genuchten.
• 2025-03-11: Provided sample code for drawing water retention curves after discussion.
• 2025-03-29: Released unsatfit 5.3; at user’s request, initialization functions (get_init and get_wrf) are now available for all models. Expanded WRF Sample codes.
• 2025-05-08: Presented on multimodal soil hydraulic models and unsatfit at Rien van Genuchten conference in Rio de Janeiro.
• 2025-08-13: Released unsatfit 5.4 (update); added functions for pore-size distribution analysis.
• 2025-08-13: Released pdfgridcat, a tool for arranging multiple figures like this.