From January 1, 2022, a NEW VERSION of the NICE CLASSIFICATION of goods and services for the registration of trademarks and of the INTERNATIONAL PATENT CLASSIFICATION (IPC) for patents and utility models based on technological areas is in force.
The new classifications are available at the following links:
2022 Nice Classification
https://www.wipo.int/classifications/en/news/nice/2021/news_0002.html
2022 International Patent Classification (IPC)
https://www.wipo.int/classifications/en/news/ipc/2021/news_0004.html