Updated 02 April, 2026.
This document provides a general summary of important changes implemented in releases for the ZSoil® v2025 software product.
What’s New in ZSoil® 2025 v25.06
Analysis
- Resolved issue with the arc-length driver which freezed during calculation when using moving loads
- Resolved issue with shear locking for Multilaminate and Menetrey+Multilaminate model
- Resolved issue with evolving self-weight (via LTFs) for flexibility based beams
- Resolved issue with nodal force applied to truss element for axisymmetric analyses
- Resolved issue with numerical damping of Eur for the HSs / HSBrick models for the first iteration
- Resolved issue with linking of inclined nonlocal pile heads to the shell
- Resolved issues with determining the thickness of warped thick shells
Preprocessing
- Resolved issue with crash when updating fixed anchor zones for selected trusses
- Added functionality to explode polylines into segments
- Resolved issue with saving INP file for heat exchangers
Menu
- Resolved issue with time stepping status during LTF import
- Resolved issue with axisymmetric shells material definition
- Resolved issue with logarithmic creep in layered beam elements
- Resolved issue with definition of nonlinear shells core material
- Resolved issue with protection activation under Windows 11
What’s New in ZSoil® 2025 v25.04
Analysis
- Resolved issue with stability driver crashing when the solver switches to the next solver
- Resolved issue with the consolidation driver which freezed during calculation when using initial stiffness (accelerated) nonlinear solver
Preprocessing
- Implemented move, rotate, copy by translation, copy by rotation and copy by symmetry operations for loads and masses on elements
- Resolved issue with applying loads “to selected elements”
- Resolved issue with applying surface load “automatically to any structural element”
- Resolved issue with selection and redrawing of Heat exchanger elements
- Resolved issue with nonlocal constraints for explicit Heat exchanger elements
- Resolved issue with reading corrupted INP files
- Resolved issue with undo operation for splines
- Resolved issue with visibility of mesh tying elements
- Resolved issue with updating boundary conditions parameters from file
Postprocessing
- Resolved issue with visualization of surface loads on elements
- Resolved issue with changing time steps for nodal and element time history results
- Resolved issue with drawing labels for Mxx for Axisymetric beams/shells results
- Resolved issue with results when more than one eigensolver is run in one analysis
Menu
- Resolved issue with bulk edit for geometry of beam materials
- Resolved issue with load time function origin shift
Probabilistic module
- Added LOO error diagram
- Corrected user interface for uniform distribution definition
- Resolved issue with crash during time steps definition for the Quantity of Interest
- Added table with sensitivity analysis results for all methods
- Now Bayesian analysis and Quantities of interest windows are resizable
Virtual Lab
- Fixed the issue with parameter identification using triaxial test data when an unloading/reloading cycle was not included
- Fixed issue with stiffness migration during parameter identification which occurred when the identified value of Rf was greater than 1
- Fixed the issue with stiffness migration for more than 3 triaxial tests
What’s New in ZSoil® 2025 v25.02
Analysis
- Resolved issue for interfaces with inherited properties when simulating 2-phase problem types
- Resolved issue with applying TOL_RHS amplification factor during analysis
Preprocessing
- Resolved issue with importing arcs from DXF file
- Improved definition of load functions for initial stresses on elements
- Resolved issue with mesh adjustment for subdomains when moving geometrical points
- Improved parameter updating for nodal heat flux
- Resolved issue when selecting interfaces defined on structural elements
- Nodal objects and interface elements are now handled in Selected elements window
Postprocessing
- Resolved issue with computing principal strains for small strain values
- Resolved issue with element time history diagram for time steps when element does not exist
- Resolved issue with displaying plastic zones for nonlinear beams
Menu
- Resolved issue with floating license activation due to lack of WMIC in the latest Windows 11 releases
- Resolved issue with bulk edit of Hoek-Brown model
- Resolved issue with saving DAT file with direct tangential stiffness for interface material
- Resolved issue with saving DAT file for local stability definition
Probabilistic module
- Added Kucherenko-based sensitivity analysis
- Resolved issue with running Bayesian analysis for more than 8 observations
- Improved visibility of long labels in combo boxes of the Random variable dialog box