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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 3.3.4 (Apr 27, 2017)

New Functionality

  • Added missing Promega MW markers.
    (Requested by Jeremy Praissman)
  • Added Gold Biotechnology MW markers.
    (Requested by Tim Ulmasov)
  • Added the Agilent MW marker.
    (Requested by Jen-Yin Cheng)


  • Enabled custom map labels to be exported to and imported from GenBank, GenPept, and EMBL formats.
  • Made various aesthetic improvements to circular and linear maps.


  • Fixed an issue where SnapGene DNA and protein files were listed as "SnapGene DNA DNA" or "SnapGene Protein Protein" in Windows Explorer.
  • Prevented an unnecessary warning dialog from appearing after choosing "Import Primers from a List”, when the last accessed list can no longer be found.
  • Ensured that the correct feature type is always shown in the Edit Features dialog when editing multiple common features simultaneously.
  • Prevented beta testers from repeatedly skipping updates.
  • Improved the appearance of ORFs in Sequence view when an aligned sequence wraps around its numerical origin.
    (Reported by Max Juchheim)
  • Ensured that the reference sequence stays anchored in place while dragging the end of an aligned sequence.
    (Reported by Christel Aebischer and Cor Breukel)
  • Fixed an issue with simulating Gibson Assembly, HiFi Assembly, and In-Fusion Cloning when a repeated unit occurred within the region of overlap.
    (Reported by Dan Strongin)
  • Improved opening of some GenBank files encoded by a mixture of Vector NTI® and Serial Cloner.
    (Requested by Amparo Andres-Pons)
  • Fixed an issue where high DPI button icons were used on some Windows and Linux low DPI displays.
  • Fixed an issue with specifying codon frequencies for custom codon usage tables.
    (Reported by Dave Lampe)
  • Improved import and export of feature labels for GenBank and EMBL formats.

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