We do not update the server the instant an update comes out. There are a number of reasons for this namely server uptime. If you are letting steam automatically update your mods you are wrong. Please allow me to introduce to you a program called arma3sync
it will allow you to launch your arma 3 with mods and not hold you hostage. enjoy.
mod updates need tested before they are loaded on the server. ace, cba or otherwise.