SwiftKey 4.3 exited the beta phase in early November and that meant the "Layouts for Living" update became available by way of the Google Play Store. The key with that update was the variety of options for the keyboard. You see, Layouts for Living actually meant users had a few options including a split keyboard, right (or left) side keyboard, a keyboard that could undock and more.
Well, it looks like SwiftKey 4.3.1 has arrived in the Play Store earlier this morning and while this is mostly a bug fixing update, there is one change that will likely be welcomed by those who are left-handed. The 4.3.1 update allows users to move the number pad to the left or right side of the screen. Similar to how we have made adjustments in the past, you can adjust this setting by pressing and holding the "123" key in the lower left. From that point tap themes.
Aside from the new left-hand friendly number pad option, SwiftKey 4.3.1 took care of a bug where some were losing the personal language when updating and also restored a missing dollar sign. The missing dollar sign fix is for those in non-US territories and will have the dollar sign on the X key. Additionally, a press and hold of the X key will bring up five different currency symbol options. The spacebar sound is now also different than other keys.
Otherwise, while SwiftKey 4.3.1 has taken care of a few bugs, it seems to have introduced a new one. This one has been spotted when we updated our Nexus 5. In other words, this one will likely affect Kit Kat users. Basically, once you update SwiftKey from the Play Store -- SwiftKey is not going to be your default. Diving into the Settings didn't help us, but things were fixed quickly enough by opening the SwiftKey app.
SOURCE: SwiftKey Blog