Edit:
"diversion" enter
"d" enter
then can see "update" options. Here's the log:
 Enter your selection [1-6 e=Exit] 3
____________________________________________________
 [ i ] No updates found for Diversion
 Do you want to force update? [1=Yes 2=No] 1
 [ i ] Getting latest diversion file
 [ ✔ ] diversion           integrated
 [ i ] Running function update
 [ i ] Getting latest installer file
 [ ✔ ] install.div         integrated
 [ i ] Getting Diversion  files from
       
https://diversion.ch/diversion/4.0
 [ ✔ ] functions.div       integrated
 [ ✔ ] post-conf.div       integrated
 [ ✔ ] post-mount.div      integrated
[: bad number
 [ ✔ ] rotate-logs.div     integrated
[: bad number
 [ ✔ ] theme.div           integrated
 [ ✔ ] update-bf.div       integrated
 [ ✔ ] write-config.div    integrated
[: bad number
 [ i ] Checking /jffs/scripts entries
 [ ✔ ] dnsmasq.postconf
 [ ✔ ] post-mount
 [ ✔ ] services-stop
 [ i ] Initializing Diversion
 [ ✔ ] Blocking file
[: bad number
 [ i ] Checking cron jobs
 [ ✔ ] Blocking file update
 [ i ] Checking dnsmasq.conf entries
 [ ✔ ] Additional hosts
 [ ✔ ] Diversion  v4.0.1 update complete
[: bad number
 Diversion 4.0.1                       by thelonelycoder
 RT-N66U (mips) FW-380.70 @ 192.168.1.1
 (ad-blocking and logging off, stats not available)
____________________________________________________
 d   Diversion            enabled
 c   communication        DivUn stats backup FWun
 a   ad-blocking          to IP 0.0.0.0
 l   logging              /opt/var/log/dnsmasq.log
[: bad number
[: bad number
 b   blocking file        Standard Mon @ 2:00
 el  edit lists
 f   follow dnsmasq.log
 e   exit Diversion                 more options  o
____________________________________________________
 [ Done ] Diversion  v4.0.1 update.
 The update log can be viewed in  sf
 What do you want to do?