New, longer-ranged missiles are being introduced to the Iron Dome rocket interception system, the Israeli air force announced Wednesday.

Iron Dome 2.0 will improve the operational range and therefore the deployment leeway of the missile defense system, the IAF said.

The primary difference between the first version of the Iron Dome missiles and their replacements is the warhead, the IAF explained.

“The next version of missiles, when mobilized, will improve it even further. New radar systems will also upgrade the system substantially,” a senior air force official involved in the Iron Dome project said.

Iron Dome missile batteries shot down a reported 100 rockets from the Gaza Strip in 2011, at an estimated cost of $35,000–$50,000 per missile. The total cost of the Iron Dome system as of its launch in 2011 was estimated at more than $210 million.