+\ifnum\ltj@@latex@plv>1499
+%%%% LaTeX >= 2021-06-01
+\DeclareRobustCommand\usekanji[4]{%
+ \kanjiencoding{#1}\edef\k@family{#2}%
+ \set@target@series@kanji{#3}\edef\k@shape{#4}%
+ \let\delayed@k@adjustment\@empty
+ \selectfont\ignorespaces}
+\DeclareRobustCommand\useroman[4]{%
+ \romanencoding{#1}\edef\f@family{#2}%
+ \set@target@series{#3}\edef\f@shape{#4}%
+ \let\delayed@f@adjustment\@empty
+ \selectfont\ignorespaces}
+\else\ifnum\ltj@@latex@plv>1000
+%%%% 2021-10-01 PL3 <= LaTeX < 2021-06-01