Neodynamic ZPLPrinter Web API for Docker Releases

Released: Jan 26, 2026

Updates in 6.0.3

Fixes

  • Critical Fix: Port 80 is no longer the default port. Changed to port 8080. This change now allows non-root users.
  • Updated all third-party libs and dependencies that are free of known vulnerabilities.

Released: Jan 19, 2026

Updates in 6.0.2

Fixes

  • DataMatrix encoding honoring rect formats if specified through the ^BX command.

Released: Oct 24, 2025

Updates in 6.0.1

Fixes

  • Validation of range values in params for barcode commands ^B7, ^BF and ^BQ.

Released: Oct 21, 2025

Updates in 6.0

Features

  • Added support for adding Graphics (images) and ZPL formats through the JSON config files.
  • Added the EnablePngCompression prop to perform a file size reduction of PNG outputs when possible.
  • Added the RenderOutputIndexes prop to set the list of indexes which the rendered outputs must be filtered by.
  • Added support for ^FL command (Font Linking).

Released: Sep 22, 2025

Updates in 5.0.21

Features

  • Added a new global exception handler.

Fixes

  • Fixed font metrics when using custom fonts.

Released: Jul 3, 2025

Updates in 5.0.20

Fixes

  • Scaling text when using bitmapped fonts.
  • Custom fonts in barcode were not rendered correctly.

Released: May 21, 2025

Updates in 5.0.19

Features

  • Added support for the SWAGGER_UI_ENABLED parameter which allows you to enable/disable Swagger UI.

Released: Apr 15, 2025

Updates in 5.0.18

Fixes

  • Fixed issue where ^TB text alignment was ignored.
  • Fixed problem with ^TB text offset rendering.

Released: Apr 10, 2025

Updates in 5.0.17

Fixes

  • Fixed issued with ^TB command height rendering.
  • Fixed error with ^BQ command position when ^FT command is specified.
  • Fixed problem with ^BQ command when the smallest module size is specified.

Released: Feb 24, 2025

Updates in 5.0.16

Fixes

  • Fixed an issue where ^MC command was not clearing any ^SN & ^SF commands.
  • Fixed an issue where ^PQ command was ignored if it was not present in label created by a ^DF command.