Version 1.53 comes with the new option to truncate oversize image files to write it to smaller flash drives. Before using this option, read the FAQ about the way it has to be done and be aware of the consequences if you do it without the method described. This definitely isn’t an “always-on” setting. The FAQ also adresses the “smaller image file on larger flash drive” and “changing partition size” questions, so please read there first.
Also it fixes some issues with the automatic file name generation (replaces “:” and “/” with “-“) and makes the device mode the default selection, when available (see FAQ as well).