Official version history and changelog information for Surfer (2022). 

Surfer 25.1.229 (February 1, 2023)

New Features & Improvements

• 2D plot: Create 2D maps from 3D grids using slice number
• 3D Grids: Grid Info
• 3D Objects: when saved to older SRF file formats, convert 3D polylines/polygons to 2D polylines/polygons
• 3D View: Export Image: match color scale placement/size to view
• 3D View: IsoSurface: calculate volume
• 3D View: option to auto-adjust the Vertical Exaggeration
• 3D View: visualize 3D Grid as a rendered volume
• 3D View: visualize 3D Grid as an isosurface
• 3D View: VRML Export Options: Remove unused "height" option
• Automation: 3D grids: Layer objects: load/save 3D grids from GridXYZC object, and update/create layer object
• Automation: 3D grids: Layer objects: update GridFile property to include 3D grids (GridXYZCFile)
• Automation: GridData: grid XYZC data
• Export/Save As dialogs: remove 'All Files (*.*)' from Save As Type or Export menus
• Grid Data: 3D gridding of XYZC data in Surfer
• Map Limits/Size: when change CS for map, Limits should be converted (and longest dimension should remain same size)
• Move the anchor point for labels on points, polylines or polygons
• PDF (vector) export: clip object if partially inside the page outline
• PDF (vector) export: increase resolution of images
• PDF (vector) export: decrease minimum dash length (so dots look like dots)
• VTK Export Options: remove/rename 'Type min' and 'Type max' as options for setting NoData nodes to

Fixes

• 3D View: contents gets confused between 2D and 3D grids in different windows when Digitize mode is enabled
• 3D View: Crash when creating 3D view for old SRF
• 3D View: redrawing view (turning base textures on/off, adjusting source map) affects grid textures in coincident areas
• 3D View: Z limits don't take into account drillhole layers when geotransform exists
• Base layer: Labels disappear for objects in group
• Base layer: Polygons disappear when in a group and geotransformed
• Color Scale: Surfer will get stuck if the labels are set to auto frequency and the height is too small
• Colormap: Custom colormap with single quote character in name causes launch error
• Crash after using Grid Filter possibly due to raw pointer usage
• Crash when gridding LAZ file and running out of memory
• Crash when making edits to a contour map and closing Surfer
• Georeference Image: GEOREF files can't be saved from Notepad and re-imported
• GeoTiff: EPSG 3571 - 3576: incorrect latitude of center (Lat0)
• Opening older SRF files with maps/layers in Lambert Azimuthal Equal Area (LAEA) may not open with the correct geotransform
• PDF (vector and raster) export: Dashes in dashed lines are shifted
• PDF (vector) export: doesn't export page correctly when map is >200" and using application page size
• PDF (vector) export: doesn't export properly if text object contains parentheses in math text filepath
• PDF (vector) export: exports vector objects outside the page, when application page size is selected
• PDF (vector) import: vector objects are displaced from image