Claude generated patch notes (take these with a grain of salt):

MacTCP "3.0.0" = MacTCP 2.0.6 + DHCP client patch (same code as v2)
====================================================================
Changed resources (everything else byte-identical to the original 2.0.6):
  DRVR 22 ".ipp"   : DHCP client, +498 bytes (see hooks below)
  DITL -4064       : version text at the bottom of the MacTCP window "2.0.6" -> "3.0.0"
  vers 1           : 2.0.6 -> 3.0.0 (BCD and both strings; shown by Finder Get Info)
Not changed: 'ztcp' 0 signature string ("2.0.6b12"), 'vers' 2 (System version "Z-7.5").

Hooks in DRVR 22
  0x4B10 send_bootp   -> addopts   : secs, broadcast flag, DHCP options (DISCOVER / REQUEST)
  0x499E bootp_ph     -> rxhook    : pre-scan options 53/54; OFFER saved (not committed), NAK resets, ACK/BOOTP commit
  0x4A4E bootp_ph     -> padfix    : option 0 (pad) handled
  0x488C config_BootP -> resetstate
  0x48E0 config_BootP -> svc       : sends REQUEST immediately after an OFFER
  0x48CA config_BootP : attempt limit 3 -> 5   (t=0,1,3,7,15 s; gives up at ~31 s)
Known limits: no lease renewal; only first 60 option bytes of a reply read; DNS = first server only.
Note: the number is cosmetic. The driver itself does not report 3.0.0 to programs.