Code Composer Essentials (CCE) has merged withCode Composer Studio v4 to bring development for all TI's embedded processors (including MSP430) under a single IDE.
It is recommended that existing users of CCE v3 upgrade toCode Composer Studio v4 or higher to get the latest features and devices support. You won't have to learn to use a new IDE because both CCE and CCS are based onEclipse so the look and feel is nearly identical.