No code points are listed as being older than 1.1

[Serentty]

It seems that the source of data used by the website does not include history for 1.0 and 1.0.1. No code point is shown as being older than that.

If finding such old data is a challenge, perhaps the UI should be changed. In particular, it is currently possible to search for code points from such early versions, but no results will be returned.

[Boldewyn]

Hm, good point. Thanks for the report!

The problem is that technically there are Unicode versions 1.0 and 1.0.1, but they were later merged with the work on ISO standard 10646 to what became the Unicode of today, v1.1 and onwards.

The standard file for the age property itself has this note:

Versions are only tracked from 1.1 onwards, since version 1.0 predated changes required by the ISO 10646 merger.

There are code charts for the old versions, e.g. for v1.0, but they do not adhere to the same stability and system that the later versions of Unicode imposed on themselves. (That is, in a nutshell, some code points were re-assigned between v1.0.1 and v1.1.)

So, yes, from the standard perspective a v1.0 and 1.0.1 do not make any sense. I’ll remove those options or change the copy to mark these values.