When asking for a better weapon or shield (Rank = Member), i only get a "Sorry, installation services are only available for purchased upgrades." Message.
Just glad, that other BM Station had a Dragonfly MS for sale :)

Version: 1.7b
Ship is Saphire and yes, i have a free slot.

nms 5 Nov 2016:

Apparently the changes to rpgInstallDevicePrep mean that they now actually check whether they have the ability to install the item. And they don't. One option is to give them the ability to install items up to level 8, without checking for military ID or illegality. This would give the player the ability to install some military items before the late game if they get their hands on them early, or don't obtain military ID, and also to use the actinide waste cannon during the part of the game where it's useful.

relanat 5 Nov 2016:

The Santabox mod is broken because of this too. I'm guessing it comes from changes in the dock services code.
EDIT: what NMS said :)

george moromisato 6 Nov 2016:

@relanat: I can't reproduce the problem with Santabox on 1.7 Beta 1. What did you do to get it to fail?

george moromisato 6 Nov 2016:

Fixed in 1.7 Beta 2.

I changed the station so it installs items up to level 8.

I also added some code to rpgInstallDevicePrep so that it falls back to the old behavior with older code.

relanat 6 Nov 2016:

Whoops, could be a jargon thing, sorry. Most of Santabox still works but the "3=Install Device" option results in the "Sorry, installation services are only available for purchased upgrades." message. Happening on devices from Level 1 to 10. Kinda messes up the mod. You need a device in your hold to install to get the message.

tarbos 10 Nov 2016:

I just noticed the same thing happening with the Auton Bay's "Install Device" Option.

tarbos 25 Nov 2016:

... and to add another one...
Lamplighter!

george moromisato 6 Dec 2016:

I believe this is finally fixed in 1.7 Beta 4.