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Version 3.0.5 -- Revision 5
ONIX Code List 44 45 ONIX_BookProduct_Codelists_Issue_4445_Changes.pdf
Version 2.1.3 – Revision 3 (Revision 4 is largely about changes for Japan)
ONIX Code List Issue 36 is the last code list that should be used for ONIX 2.1
BISAC Subject Code list 2018 edition and Regional Themes
Thema Version 1.3.2 (last updated April 2019)
The overview of ONIX for Books at the Editeur website.
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