The way items are numbered in a list varies from script to script. In CSS2 nine non-Latin numbering systems were specified. These included: lower-greek, hebrew, armenian, georgian, cjk-ideographic, hiragana, katakana, hiragana-iroha, katakana-iroha. Unfortunately, user agents didn't implement all of these, and as part of its mission to represent a snapshot of current usage, the CSS2.1 specification reduced that number to two: armenian, and georgian.

This shows how important it is to make your voice heard if you want non-Latin features to be supported in specifications and user agents.

It has to be said that the expected behaviour was also poorly specified for these options.