We do multiple versions of documents for our International markets. We just upgraded to InDesign CC (2014), but our translation company told us they have CC (2014) but InDesign CC does not support Asian languages (in this case, CH-TRA), so they will provide us with CS6 files. Can anyone help me understand this? I have been using CH-TRA fonts in CC for a while.
You have to inquire with them what exactly is the problem since you already know that's not the case.
I suspect that it's either "Our translation memory tool can't handle IDML generated by CC" or, more likely, "We use DTP talent that cannot afford CC because we pay them almost nothing."
I have sent my fair share of InDesign localization/DTP work abroad in CC formats and have gotten back files generated by a wide variety of non-CC versions. I recall one ten-language rush job in CC where I did five languages myself, and we sent the other five to an unnamed North African DTP house. They did good work, as usual - but files came back in CC, CS6, CS5.5, CS5, and CS4 file formats.