3GPP releases are the stepping stones to introduce new features to meet constantly changing market requirements. Here is an introduction video on 3GPP releases.
Wacth Video on YouTube: 
https://youtu.be/AD5gfKAiJ4M?si=LkxZ0H43vEPIp4k1
3GPP develops technical specifications and reports to construct Mobile Systems to address telecommunications business needs through the technological evolutions.
3GPP is responsible to maintain various generations of mobile systems such as 2G i.e., 2nd Generation Mobile Technology based on GSM (Global System for Mobile communications), 3G i.e., 3rd Generation Mobile Technology based on UMTS (Universal Mobile Telecommunications System), 4G i.e., 4th Generation Mobile Technology based on LTE (Long Term Evolution) and evolving 5G i.e., 5th Generation Mobile Technology based on NR (New Radio).
3GPP is actively pursuing research for potential 6th Generation Mobile Technology to address ever changing market needs.
This video aims to provide high level overview into various 3GPP releases and corresponding features and enhancements which are of significant in driving various service offerings.