▁ ▁Qt ▁ 5 . 0 ▁was ▁released ▁ 1 9 ▁December ▁ 2 0 1 2 , ▁Qt ▁ 5 . 2 ▁ 1 2 ▁December ▁ 2 0 1 3 . ▁And ▁for ▁example ▁K DE ▁Frame works ▁ 5 . 2 1 . 0 ▁requires ▁Qt ▁>= ▁ 5 . 4 , ▁and ▁no ▁longer ▁supports ▁Qt ▁ 5 . 3 ▁( cf . ▁Qt ▁version ▁history ). ▁ ▁Standard ▁releases ▁There ▁are ▁two ▁main ▁types ▁of ▁standard ▁releases : ▁Fe ature ▁releases ▁and ▁bug fix ▁releases . ▁ ▁Fe ature ▁releases ▁have ▁two ▁version ▁numbers , ▁for ▁example ▁ 3 . 5 ▁and ▁contain ▁new ▁features . ▁As ▁soon ▁as ▁a ▁feature ▁release ▁is ▁ready ▁and ▁announced , ▁work ▁on ▁the ▁next ▁feature ▁release ▁starts . ▁A ▁feature ▁release ▁needs ▁several ▁months ▁to ▁be ▁finished ▁and ▁many ▁bugs ▁that ▁are ▁fixed ▁during ▁this ▁time ▁are ▁back port ed ▁to ▁the ▁stable ▁branch , ▁meaning ▁that ▁these ▁fixes ▁are ▁incorpor ated ▁into ▁the ▁last ▁stable ▁release ▁by ▁bug fix ▁releases . ▁During ▁the ▁K DE ▁SC ▁ 4 ▁series , ▁K DE ▁SC ▁had ▁a ▁feature ▁release ▁roughly ▁every ▁six ▁months . ▁Since ▁the ▁split , ▁K DE ▁Pl asma ▁releases ▁a ▁new ▁feature ▁version ▁roughly ▁every ▁ 3 – 4 ▁months . ▁ ▁Bug fix ▁releases ▁have ▁three ▁version ▁numbers , ▁e . g . ▁K DE ▁ 1 . 1 . 1 , ▁and ▁focus ▁on ▁fixing ▁bugs , ▁minor ▁gl itch es , ▁and ▁making ▁small ▁us