hi all. i have there new Tamron 15-30mm 2.8 lens which is , so far, very good for the money compared to the Nikon. However, its not listed in the drop downs of Tamron lenses in the corrections dialogue as its so new. How often do they update this stuff? Is there a way around it other than choosing the closest match? Thanks.
This lens is supported for Canon and Nikon bodies with version 6: https://helpx.adobe.com/x-productkb/multi/lens-profile-support-lightroom-4.html
If you have a CC subscription, the upgrade is free. If you have a standalone license, there is an upgrade available.