X added a minimum user age of 16 in Australia to comply with Social Media Minimum Age (SMMA) requirements, implementing multi-layered age verification including self-attestation, ID verification, email-based estimation, and AI-verified government IDs.

X has restructured its Civic Integrity policy, expanding civic processes to explicitly include political elections, censuses, major referendums, and ballot initiatives. The policy reorganizes prohibited behavior into broader categories instead of detailed examples and shifts enforcement toward Community Notes as the primary transparency tool rather than automatic labeling, broadening scope while giving X more flexibility in interpreting violations.

X has updated its merchandise sales rules, removing the requirement for US-based businesses, allowing state-affiliated media to sell merchandise, opening sales to X Premium accounts (previously restricted to Professional Accounts), and permitting local currency pricing instead of US dollars only.

X now requires creators to have an active paid subscription to qualify for monetization.

X (formerly Twitter) has introduced a prohibition on iframing content in its Developer Terms, forbidding the embedding of X content on external websites. This represents a major shift from X's previous open approach and could significantly impact news websites, public discourse, and whistleblowing efforts that rely on displaying X content.

Les nouvelles conditions d'utilisation de X pour les développeurs décrites dans le chapitre III concernant les limites d'utilisation, interdisent désormais strictement l'utilisation de l'API de X ou du contenu de X pour affiner ou former un modèle de fondation ou un modèle d'avant-garde d'intelligence artificielle.