I went digging thru the archive and found the following BINARY/EXECUTABLE unreleased versions of AmigaOS disk files that are NEWER than what went out with AmigaOS 3.1:
Filename, Size, Version, and Date
utilities/more 12752 40.3 (2.2.94)
utilities/installer 106644 1.27 (24.10.93)
utilities/clock 13164 42.1 (4.2.94)
utilities/cdaudio 15528 42.4 (8.3.94)
prefs/cdprefs 10624 42.3 (21.3.94)
libs/player.library 11128 40.14 (22.2.94)
libs/locale.library 17272 42.1 (23.8.93)
libs/iffparse.library 5852 42.2 (16.8.93)
libs/commodities.library 8236 42.1 (12.7.93)
libs/asl.library 38416 42.2 (15.7.93)
libs/68040.library 43808 42.1 (26.7.93)
l/CrossDOSFileSystem 27640 40.24 (21.10.93)
devs/printer.device 27940 41.10 (8.2.94)
classes/images/led.image 2924 42.1 (24.2.94)
classes/images/label.image 4484 42.1 (12.4.94)
classes/gadgets/tabs.gadget 6008 42.3 (23.2.94)
classes/gadgets/button.gadget 4868 42.2 (7.3.94)
classes/datatypes/pcx.datatype 4160 42.1 (31.7.93)
classes/datatypes/macpaint.datatype 2532 42.1 (2.8.93)
classes/datatypes/ico.datatype 2024 42.1 (30.7.93)
c/wait 976 42.1 (12.7.93)
c/sort 2280 42.1 (9.8.93)
c/protect 1504 42.2 (14.9.93)
c/list 6484 42.7 (14.9.93)
c/iprefs 11876 42.1 (11.8.93)
c/binddrivers 1248 42.1 (27.8.93)
I did a quick test, and they all seem to work quite nicely
