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System Requirements
OS Windows 7 or later
macOS 10.8 or later
Ubuntu Linux 14.04 or later
Fedora Linux 21 or later
Memory1 GB RAM
Hard Disk250 MB available disk space
Display1024 x 768 or higher resolution

Changes in version 4.1.4 (Jan 10, 2018)


  • Enabled choice of a destination subfolder when importing into a collection.
  • Enhanced the recognition of feature names when opening ApE files.
  • Updated the common features database.
  • Made various color enhancements.


  • Fixed an issue where sequences that align around the numerical origin were sometimes shown on top of other aligned sequences in linear maps.
    (Reported by Leonid)
  • Prevented duplication of files when moving between folders in a collection on Windows.
    (Reported by John)
  • Restored the ability to browse to a collection on Windows when using "Save to Collection".
    (Reported by Carles Alvarez)
  • Allowed non-native files to be saved to the appropriate collection folder.
    (Reported by Carles Alvarez)
  • Fixed a crash that could occur when opening the Preferences dialog on Ubuntu Linux.
    (Reported by Olivier Bertini)
  • Improved the importer for DNA Strider files.
    (Reported by Francesca Mattiroli)
  • Ensured consistent computation of the primer overlap length and Tm for NEB HiFi assembly.
    (Reported by Nan Liang)
  • Improved map labels when importing certain protein sequences from NCBI by ignoring the KEYWORDS field.
  • Removed the "Order" button from various dialogs where it was not appropriate.
  • Prevented the "Order" button from being visible when no or multiple DNA sequences are selected in a collection.
  • Ensured that aligned sequences that wrap around the numerical origin are always visible when viewing a downstream aligned region in Sequence view.
  • Enabled unsaved sequences imported from NCBI to be saved to a collection.
  • Allowed for simple case changes when renaming a file in a collection.
  • Improved the behavior for dragging and dropping files in a collection.
  • Fixed various issues with saving to a collection where the expected default folder was not always selected or the Save button was not always enabled when appropriate.
  • Corrected errors with the rendering of site features in protein sequences.

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