The DDS have held the first test of a solid fuel rocket called Bright Spark. This will eventually be the first stage of the LRM-20 space missile with a range of 20 light years which the DDS hope to get into service by 2114 (though full operational status with the rocket stage may have to wait until 2116).
Bright Spark is an off-the-shelf rocket bought off a Terran space company and the test was judged successful when a test payload reached LEO over Proxima 5. By buying a proven design the DDS have managed to kick start LRM-20 development which is lagging behind the Clone CSM. This system could enter service by the end of this year.
A parallel project is developing the space stage of the LRM which is a modified MRM with a new engine and improved control systems. The DDS are hoping to have a ground test LRM by the end of the year and if things go smoothly test launch the LRM space stage from a ship next year. Mating the space stage to Bright Spark is scheduled for 2113.
The 100 light year range LRM-100 will be the definitive missile system as silos on Proxima 7, for example, would be able to reach most points in the Clone Space Empire. A LRM-250 model is also projected. Both are not expected until well into the 2120s however.