IBM, Google, Red Hat neFacebook hlanganani ngenxa yamalayisense emithombo evulekile. Lezi ziqhwaga zimemezele ukuthi zihlose ukukhuthaza ukuqagela okukhulu kwamalayisense emithombo evulekile, ukuzibophezela ekwandiseni amalungelo angeziwe okulungisa amaphutha wokulandela umthetho. Umsebenzi omuhle ozohlomulisa wonke lawo maphrojekthi athintwe yilolu hlobo lwamalayisense emithombo evulekile noma evulekile futhi kwesinye isikhathi angenazo iziqinisekiso okufanele azenze ngakho-ke le quartet enamandla izotshalwa ukuze iphoqelelwe.
Ilayisense edumile I-GNU GPL (Ilayisensi Yomphakathi Jikelele) Ingenye esetshenziswa kakhulu namuhla, kanye ne-LGPL (noma i-GPL Encane) yamaphrojekthi wesoftware wamahhala. Ngaphezu kwalokho, njengoba sazi, i-GPL iyona esetshenziswa iningi le-Linux kernel (ngaphandle kwalabo bashayeli abalayishwa njengamamojula futhi bangase babe ngaphansi kwamanye amalayisense, kuhlanganise nalawo abanikazi balabo bashayeli esibabiza ngokuthi ama-binary blobs) kanye futhi okwe-GPL.ulunye uhlelo lwe-GNU olwakha ukusabalalisa kwethu, okuhlanganisa namaphakheji amaningi esofthiwe asetshenziswa kuwo. Ngenguqulo yokuqala neyesibili ye-GPL amathuba athile ayengekho, kodwa ngenguqulo 3 ye-GPL (GPLv3Yebo, kufakwe isiphakamiso sokunqanyulwa okusobala esanikeza abasebenzisi amandla okulungisa amaphutha ekuthobeleni ilayisense. Lokhu kunikeze indlela enengqondo yamaphutha neziphazamisi ebezivame ukunganakwa, okuvumela ukuphoqelelwa kokulandelwa kwelayisense nokuhambisana namazinga omphakathi.
Yebo, i-IBM, i-Google, i-Red Hat ne-Facebook nabo bazibophezele ekwandiseni indlela ye-GPLv3 yamaphutha wokulandela ilayisense wekhodi yesoftware amalayisense ngamunye ngaphansi kwezinye izinhlobo ezifana GPLv1, GPLv2, GPLv2.1. Uma unentshisekelo yokufunda kabanzi ngalesi sihloko, ungafunda amakhasi ahlukile ngolwazi ngalo: