Somewhere there must be some sort of release note that says what is new or changed in successive updates to Dyalog for the Raspberry PI OS -- now 18.0.45260
But I haven't been able to find this info. apt-get changelog dyalog-unicode gives a very terse "dyalog-unicode 18.0.13 Changelog" that does not seem to pertain directly to the current update -- for example it includes the switch to Ride 4.4 for Debian Bullseye that was included in the previous update.
Thanks for any info on this.