Suricata

App layer protocols do not support new kibi-byte units in memcap.

Examples are "app-layer.protocols.ftp.memcap" and "app-layer.protocols.mqtt.max-msg-length".
Un-commenting the default value leads to error (see below).

ftp:
      enabled: yes
      memcap: 64 MiB

Leads to <Error> -- Invalid value for websocket.max-payload-size

Same for "mqtt.max-msg-length":

mqtt:
      enabled: yes
      max-msg-length: 1 MiB

Leads to <Error> -- Invalid value for mqtt.max-msg-length: 1 MiB

I think this is because the Rust get_memunit() function does not know the new suffixes.
See https://github.com/OISF/suricata/blob/e62eb004599ec500aeacfa7150b0dbca19f0a0fb/rust/src/conf.rs#L183