Upgrade testing to unstable but debian_version and os-release not changing to sid

[Robbi Nespu <robbinespu@gmail.com>]

I have been using debian testing (bullseye) for 1 year (plus) and I want 
to use sid as my daily driver.

I change source.list to sid
    $ cat /etc/apt/sources.list
    deb http://ftp.jp.debian.org/debian/ sid main contrib non-free
    deb-src http://ftp.jp.debian.org/debian/ sid main contrib non-free

do the update and upgrade ...

    $ sudo apt-get update
    $ sudo apt-get dist-upgrade
    $ sudo apt-get autoremove
    $ sudo reboot

when booted, I checked systemd os-release and debian release still on 
bullseye codename

    $ cat /etc/debian_version
    11.0

    $ cat /etc/os-release
    PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
    NAME="Debian GNU/Linux"
    VERSION_ID="11"
    VERSION="11 (bullseye)"
    VERSION_CODENAME=bullseye
    ID=debian
    HOME_URL="https://www.debian.org/";
    SUPPORT_URL="https://www.debian.org/support";
    BUG_REPORT_URL="https://bugs.debian.org/";

Hurmm.. that is unexpected, are this is normal or did I missed something?

--
Robbi Nespu <robbi DOT nespu AT SPAMFREE gmail DOT com>
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