Today's update is a fairly big one in terms of adding to the game. I've added the ability to upgrade your fleets. Currently, there are three upgrades available, for three different ships. To access the upgrades, you visit the "Ships" tab of the build menu, where you will now see "existing" ships as well as "new" ships:

Tapping on one of your existing ships, you'll get a menu of the upgrades you can choose. Currently, each kind of ship only has one upgrade available, but in the future we may add some more. Choose the upgrade you want and click "Upgrade".

The build will proceed like an upgrade of a building. The main difference is that ships are available for upgrade from any colony (as long as it has a shipyard), so you can build a fleet of ships on one colony and upgrade them on another.

So what upgrades can you build?

Cloak

As you can see above, the scout has an upgrade called "Cloak". Scouts with this upgrade are invisible to enemy radar, but more importantly, they can sit on an enemy star undetected. If you set the stance of the scout to "netural" or "passive" (to stop it from trying to attack), then enemy ships will not be able to see it and you can send it to spy on your neighbours.

This is great for seeing what your enemy is up to, even on stars that are outside the range of your radar.

Boost

The boost upgrade is available for fighters and, when actived, halves the ETA of the fighter. So if you send a fighter to another star, and it initially says it will take 2 hours, use the "Boost" button to halve that to 1 hour.

Boost is a single-use function. Once the fighters arrive at the destination, the boost is lost and you'll have to upgrade the fleet again to get another boost.

Cryogenics

The final upgrade in today's update is called "Cyrogenics" and it applies to the colonyship. If you upgrade a colonyship with this upgrade, then instead of depositing 100 coloniests on a planet, it will deposit 400 colonists (or the planet's population congeniality, whichever is less). This'll give your new colony a bit of a boost when starting out.