Consultation on license documents

Hello, I have the following questions to consult and look forward to your authoritative answers. 1. Must various software packages in the Debian community contain a license file "license.txt"? Without this file, how does the users know about the license usage of the package? 2. I found that each

package tracker is missing "bind9 bullseye security update"

Hello fellow DDs, Looking at I see: bullseye (net): 1:9.16.33-1~deb11u1 Comparing this to I get this: bullseye