v0.2.27

• Add popup error messages to the web UI.
• Add a "No simplification" option to the web UI import dialog.

v0.2.26

• The Web UI can now load more than one file. Only the last-loaded file can be edited and exported. The previous file is visible as a faded image. Older files are dropped.
• Handle some irregularities found in in-the-wild .shp files.

v0.2.25

• Web UI shows a progress bar while importing large datasets.

v0.2.24

• The web interface can now import Zip archives containing supported file types.

v0.2.23

• Add + and name=options to the -filter command. This allows creating a new filtered layer alongside the original layer.
• Add force flag to the -join command. This allows values in the target data table to be overwritten by values in the source table when both tables contain identically named fields.
• Bug fixes

v0.2.22

• Fixed bug preventing files from importing in the GUI.

v0.2.21

• Feature ids from GeoJSON and TopoJSON files are automatically preserved.
• Fixed several bugs affecting csv files.
• When importing and exporting from/to GeoJSON or TopoJSON, top-level "crs" properties are preserved.
• -dissolve command now works on layers without any geometry (in addition to polygon layers).
• Improvements to text encoding detection.

v0.2.20

• Added bbox= option to -clip and -erase commands for clipping/erasing using a bounding box.
• Added -rename-fields command.
• Use .cpg file (if present) to set dbf text encoding.
• Use dbf "language driver id" (if present and valid) to set dbf text encoding.
• Try to auto-detect dbf text encoding if other methods fail (limited to utf-8 and latin1)
• Support reading delimited text files with non-utf-8 encodings (using -i encoding= option).
• Remove byte order mark (BOM) when importing text files in utf-8 and utf-16.
• Fix a bug affecting -calc command.

v0.2.19

• Fixed an error importing Shapefiles with the encoding= option.
• Added experimental (undocumented) -proj command for projecting lat-lng datasets.
• Added -projections command for listing names of supported projections.

v0.2.18

• Support importing, editing and exporting delimited text files and .dbf files.
• Added field-types= option to -i and -join commands.
• API function applyCommands() now accepts delimited text files.
• Removed optional dataset argument from API function runCommands().
• Removed runShellArgs() API function (use runCommands() instead).
• Stop supplying default -o command when missing from command line.