The article is devoted to a comprehensive analysis of the fundamental changes in the legislation on liability for extremism, which were introduced in Article 282 of the Criminal Code of the Russian Federation by Federal Law No. 173-FZ of June 24, 2025. The subject of the study is the norms of criminal law, federal anti-extremist legislation, and the explanations of the Plenum of the Supreme Court of the Russian Federation. The article examines the historical background of the reform, the key changes in the new version of the criminal law norm, which effectively eliminate the classic composition, and their impact on law enforcement practice. The article analyzes the arguments for and against the changes, and evaluates their consequences for the protection of public safety. The work is based on the special legal and comparative methods. The author draws general conclusions on the legal consequences of the reform of Article 282 of the Criminal Code of the Russian Federation and formulates practical suggestions.