...
// SWI 4.44: Miscellaneous (new in SWI7.6.4)
dwim_match/2
dwim_match/3
wildcard_match/2
// sleep not supported at prolog level
// SWI 5.2.1: Predicates that operate on strings (new in SWI7.6.4)
atom_string/2
number_string/2
term_string/2
term_string/3
string_chars/2
string_codes/2
text_to_string/2
string_length/2
string_code/3
get_string_code/3
string_concat/3
split_string/4
sub_string/5
atomics_to_string/2
atomics_to_string/3
string_upper/2
string_lower/2
read_string/3
read_string/5
open_string/2
// SWI A.1: Aggregation operators
aggregate/3
aggregate/4
aggregate_all/3
aggregate_all/4
foreach/2 // new in SWI7.6.4
free_variables/4 // new in SWI7.6.4
...