While 21.2.3 is a bugfix release, it builds upon the major features introduced in the 21.2 cycle: Stem Separation:
Once installed, take five minutes to configure these settings: imageline fl studio producer edition 2123 b install
Since there is no official "2123 b," we will install the latest (which is the closest match to your search). Follow these steps exactly. While 21
Installing follows Image-Line's standard procedure for version 21 updates, which includes the significant addition of FL Cloud and Stem Separation . Because Image-Line offers Lifetime Free Updates , you can install this version directly over previous installations of FL Studio 21 to keep your settings and projects intact. Installation Guide While 21.2.3 is a bugfix release