Benin's first Senate was formally established on the 30th, marking the beginning of a bicameral system for the country's parliament. The inauguration ceremony of the Senate was held on the same day at the National Assembly building in Porto-Novo, the capital of Benin. It was presided over by Elizabeth Bonion, former president of the Beninese Constitutional Court. According to the constitutional amendments promulgated on December 17, 2025, the Beninese parliament was changed from a single national assembly to a two-chamber system composed of a national assembly and a senate.

Benin's first Senate was formally established on the 30th, marking the beginning of a bicameral system for the country's parliament. The inauguration ceremony of the Senate was held on the same day at the National Assembly building in Porto-Novo, the capital of Benin. It was presided over by Elizabeth Bonion, former president of the Beninese Constitutional Court. According to the constitutional amendments promulgated on December 17, 2025, the Beninese parliament was changed from a single national assembly to a two-chamber system composed of a national assembly and a senate.