Hello all, A small number of functions have been deprecated for removal by the end of the year. In addition to the previously-notified \clist_(g)trim_spaces:N and \clist_(g)trim_spaces:c, the following are also scheduled for removal: - \c_luatex_is_engine_bool - \c_pdftex_is_engine_bool - \c_xetex_is_engine_bool (All replaced by the \<engine>_if_engine_p: predicate versions.) - \use_i_after_fi:nw - \use_i_after_else:nw - \use_i_after_or:nw - \use_i_after_orelse:nw (All too low-level: use higher-level TF functions instead.) - \cs_set_eq:NwN (Can be replaced by \cs_set_eq:NN in all cases) -- Joseph Wright