Todays newspost is about a larger change of the possibilities to defend your bases in v3.
We took a closer look to how defence stations, platforms and turrets worked in the PR and decided to give them a little more depth. Therefore most races got a redo of their turrets with individual changes.
The Federation, for example, does now construct a basic Platform instead of turrets or sensor stations. This Platform does then contain mutliple construction options to be extended into a Defence Platform or a Sensor Station. A new "Phaser Platform", a early-game medium range turret made it into the game this way, too.

"You have entered Federation space!"
Other races will of course feature different turret systems. Romulan turrets may now cloak, making the Cloaking Generator a little more attractive and Klingon have been sighted to put more and more armor plates on their stations.