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System Requirements
OS Windows 7 or later
macOS 10.10 or later
Fedora Linux 21 or later
Red Hat Linux 7.2 or later
Ubuntu Linux 14.04 or later
Memory1 GB RAM
Hard Disk250 MB available disk space
Display1024 x 768 or higher resolution

Changes in version 4.1.1 (Nov 29, 2017)

New Functionality

  • Added Thermo Fisher E-Gel DNA ladders.
    (Requested by Boris Hartmann)
  • Added SMOBIO DNA ladders.
    (Requested by Sitara Takumi)
  • Enabled the “Order Construct” command in SnapGene Viewer, and added an “Order” button to the top toolbar to make accessing this feature easier.


  • Updated the common features database.
  • Made various color and textual enhancements.
  • Ensured that when installing on Windows when SnapGene is already running, the option is provided to either terminate the running copy, wait for it to quit, or cancel the installation.


  • Fixed an issue that prevented exiting when an updated version of an imported file was open.
    (Reported by Matthew Fuchs)
  • Ensured that saving an imported file to a collection results in a file with the proper extension.
    (Reported by Frank Thieme)
  • Corrected the name that is written to the comment field when exporting to FASTA or using the “Batch Convert File Format” command.
    (Reported by Wulf Dirk Leuschner)
  • Set the "OK” button to be the default when performing an action that pops up a confirmation dialog with a "Don't Show Again" check box.
  • Improved the response when non-SnapGene files are manually dragged into a collection folder.
    (Reported by Daniel Kraut)
  • Fixed an issue with filtering invalid files when importing files into collections.
    (Reported by Daniel Kraut)
  • Prevented more than one copy of SnapGene from being launched.
    (Reported by Nick Russell)
  • Prevented a rare configuration that could cause feature names to overlap in linear maps.
    (Reported by an anonymous user)
  • Corrected an issue where the “Alias” column was sometimes empty when viewing a collection.
    (Reported by Rasmus Bak)
  • Enabled opening of SeqBuilder Pro files.
    (Reported by Karen Dolter)
  • Ensured that Alt/Opt-clicking on a feature segment results in selection of only the segment, even if the mouse cursor moves during the click.

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