GMMOS

GMM OS is a mockup username operating system by GMM with Version 1.0 released in 2019. GMM has made several changes to OS with 3 updates being posted.

Release Cycle
Development started when SDON was released in the 890s. SDON then became Snickerdrumm which continued having updates all the way till 1950. The first build of GMMOS OS (till 0.99 comes) was exactly as final build of CTP OS 2.1.

There are 26 phases before releasing:
 * Launch Preview (1975)
 * 0.05 (1980)
 * 0.09 (1984)
 * 0.18 (1988)
 * 0.3 (1992)
 * 0.38 (1996)
 * 0.46 (2000)
 * Whistler (2001)
 * Terminal Server 1.0 (2001)
 * 0.57 (2004)
 * 0.58 (2005)
 * 0.6 (2005)
 * 0.65 (2007)
 * 0.7 (2009)
 * Pre-Alpha (2011)
 * 0.81 (2012)
 * All-Stars (2015)
 * Ten (2015)
 * 0.9 (2015)
 * Beta 4 (2017)
 * Final Beta (2018)
 * RC (2018)
 * 0.99 (2019)
 * RC 2 (2019)
 * Pre-Release (2019)
 * Release (2019)