DNS → IP → Handshake → Request → Response
WWW is not only application which HTTP can be used. Others also exist a lot
Stateful content through HTTP does not mean HTTP is stateful. Stateless in here does not means pure function
IETF HTTP Working Group
IETF HTTP Working Group has 12 repositories available. Follow their code on GitHub.
Difference between patch and update
On creating Installers, I came across both patch and upgrade. Whats is the major difference between a patch and and upgrade? Is a patch similar to update?