Further Delays Predicted for F-35 Program

The general in charge of the F-35 told a US House panel Wednesday he sees more delays ahead — four to six months — for the often-troubled fighter jet program.
F-35Software development is "hard stuff", and will force new delays.
Block 3F software is dependent upon the timely release of Block 2B and 3I, and at present, 3F is tracking approximately four to six months late without taking steps to mitigate that delay.
General Accountability Office warned that any new software delays will trigger delays and cost overruns across the entire program.
The program more recently has made slow and steady progress. Initial operational capability (IOC) goals for the Marine Corps and Air Force in 2015 and 2016.
defensenews