What I like to do is make a copy of the first table, with an extra column filled with and identifier: "First Table" works well. Then I copy the second table beneath the first table, and fill the extra column with "Second Table".
Then the magic: use Data / Remove duplicates, unchecking the extra column. Then all the entries in the Second Table section that are unchanged will be removed, and only the changed data will remain (in the rows marked "Second Table")
Then do the reverse - second table on top - and the rows that remain in the "First Table" section were either changed or removed from the Second Table.
OR - use a formula like
=IF(COUNTIFS(F:F;A2;G:G;B2;H:H;C2;I:I;D2)=0;"CHANGED or MISSING: "&A2 &" "& B2 &" "& C2 &" "& D2;A2 &" "& B2 &" "& C2 &" "& D2)