https://issues.dlang.org/show_bug.cgi?id=19166

          Issue ID: 19166
           Summary: Detect old keyrings by checking their hashsum
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: installer
          Assignee: nobody@puremagic.com
          Reporter: greensunny12@gmail.com

> If the keyring ever changes (i.e. if someone has an old keyring installed), the install.sh script should probably detect this and remove/download the new keyring. You could do this by checking the sha of the keyring to detect if it is out-of-date.


https://github.com/dlang/installer/pull/338#issuecomment-412604923

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