National standards bodies often offer translated versions of the ISO/IEC standards in their own languages. They all go to great lengths to ensure that the translations remain true to the original ... but that process takes time so national versions are often named with later years than the ISO/IEC versions.
Further info on the ISO27k standards & their implementation
If you are actively implementing the ISO27k standards, you are welcome to join the ISO27k Forum to discuss the practicalities with others doing the same thing. The international community offers free advice, giving you the benefit of our collective experience in this field. Your thoughts and inputs are most welcome too, including queries, comments, contentious points to discuss, and feedback or improvement suggestions for this website and the ISO27k Toolkit.
“ISO” is not actually an acronym but the official name of the Swiss organization responsible for coordinating the world’s national standards bodies. Joint Technical Committee 1 (JTC1) looks after ISO’s IT standards while JTC1 Sub Committee 27 (JTC1/SC 27) is specifically responsible for the standards covering IT security techniques. JTC1/SC 27 is busy with lots of security papers currently under consideration for encryption, privacy and identity management as well as ISO27k.