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The VDU patches below will update certified libraries on Edition 11 to 45/23.

* To download individual libraries or patches, right-click on the link and choose 'Save Target As' (for IE) or 'Save Link As' (for Netscape). To download multiple files at once, use the checkboxes to select the files, and click the 'Download' button at the bottom of the list. Once the files have been downloaded, the user must use Winzip 9.0 or earlier editions to extract from the .zip files.

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*Rows highlighted below in this color are cancelled libraries since the latest New Edition.*
*Rows highlighted below in this color are new libraries available with the latest New Edition.*

IMPORTANT: As of 15 November 2021, NGA's Maritime Safety Office no longer supports DNC VDU UNIX patches. If you have questions or concerns please contact NGA via the Maritime Quality Feedback System (MQFS)

Number Name Download
full library
Download VDU Patch
(Windows)
Download VDU Patch 
(Unix)
Cancelled or
New Libraries
 N/A    N/A NtM
date
GEN29A Antarctica 180W to 135W N/A   Windows
       607.1 KB
N/A -
GEN29B Antarctica 135W to 90W N/A   Windows
       1.1 MB
N/A -
GEN29C Antarctica 90W to 45W N/A   Windows
       995.8 KB
N/A -
GEN29D Antarctica 45W to 0 N/A   Windows
       120.8 KB
N/A -
GEN29E Antarctica 0 to 45E N/A   Windows
       441.2 KB
N/A -
GEN29F Antarctica 45E to 90E N/A   Windows
       4.6 KB
N/A -
GEN29G Antarctica 90E to 135E N/A   Windows
       698.1 KB
N/A -
GEN29H Antarctica 135E to 180E N/A   Windows
       681.2 KB
N/A -