

根据segaretro的记载,只有两次再版 (Reprint,T-20115G,T-20118G),所谓的周年版应该就是T-20118G(发售日期和初版相差一年)。另外UP(@zainian,疫前本吧非常活跃的大神)说DC版是在SS第三版之前发售的,但是segaretro记载的各作发布时间,DC版是在SS版第二次再版之后发行。
https://segaretro.org/Black/MatrixBlack/Matrix (ブラックマトリクス) is a Sega Saturn tactical role-playing game developed by Flight-Plan and published by NEC Interchannel. Released exclusively in Japan in August 1998, it later saw two re-releases: the first the following November, and the second in September 1999.
1998-08-27T-20113G(SS初版)
1998-11-06T-20115G(SS再版(Reprint))
1999-09-02T-20118G(SS再版(Reprint))
1999-09-30T-20101M(DC初版)
2000-2-14 SLPS 02962~3 BLACK/MATRIX+(PS版)
2002-10-31T-20101M-1(DC再版(Dorikore))
也许变动非常微小,如果想探究,还是建议仔细攻略和对比才能发现