Version 5.3(248)-5 incorporates additional features, enhancements and fixes since the minor release of 5.3(235)-5, in June of this year (11-Jun-2023).  These are as follows and can be identified in the code with the edit number as the prefix of a comment.

[236] Implement /FORKLESS connections for DECnet NRT’s
[237] Implement the RETURN keyword to stop processing a TAKE file
[238] Enhanced NRT disconnect messages
[239] Use .HPTOD (High Precision Time of Day) if the monitor has it
    HPTIM% .HPTOD
[240] When logging to a disk file, display the number of bytes written
[241] Handle potential case of incorrect data being sent for CWD
[242] ECHO /TRANSACTION /DEBUG /SESSION Switches
[243] Fix off by one error which appended NUL characters in packets
[244] Fix server FINISH does not close all logs
[245] Rewrite MOVSTU to use EXTEND instead of loop
[246] Additional C escape sequences: \O and \U
[247] Rewrite IAC handling to use EXTEND instead of loop
[248] Fix incorrect string lengths being returned by C constant expansion
Kermit-20-Testing-Battery-5.3(248)-5 Updates and new Batch Tests
    K20DPD: Updated Kermit-20 Packet Decoding Example
    K20NRV: Updated Kermit-20 Server functions via Tops-20 DECnet NRT to local host
    K20NRT: Updated Kermit-20 Server functions via Tops-20 DECnet NRT to remote host
    K20DPD: Updated Kermit-20 Packet Decoding Example
    K20P8R: New Regression test against Kermit-20 4.2(174) [2-May-85] 8 bit files with parity
    K20RDC: New Communications comparison Kermit-20 4.2(174) [2-May-85] and 5.3(248)-5
    K1036N: Kermit-10 36 bit Regression Tests via DECnet NRT
Updated Help

It is available for anonymous NFT from VENTI2:: in the K20MIT sub-directory.  The full announcement may be find in text format in: VENTI2::TOMMYT:<OINKY.K20MIT.DOCUMENTATION>KERMIT-20_V5_3(248)-5-ANNOUNCEMENT.TXT.  Note that the left and right parenthesis will need to be quoted with a Control-V.  Alternatively, you can just grab the whole documentation directory and have your local NFT do the naming.