Mastodon 4.5 Release Candidate 1 adds quote post authoring, improved conversation management, and enhanced federation tools, boosting decentralized social media capabilities.

Mastodon 4.5 RC1 introduces key upgrades for developers and admins, focusing on quote posts and federation tools. This enhances the decentralized social media experience.
Quote post authoring now includes privacy states like blocked_account and muted_account to hide unwanted quotes. Developers can integrate via REST API with quoted_status_id.
Version 4.5 automatically fetches missing replies to remote statuses, improving conversation threads across the network for better user engagement.
HTTP Message Signature support is now default, ensuring verifiable messages are accepted, streamlining federation for server admins.
Mastodon 4.5 RC1 offers significant improvements in quote posts, conversation management, and federation, positioning it as a strong alternative to centralized platforms while upholding privacy and open standards.
Mastodon 4.5 RC1 introduces quote post authoring with privacy controls, automatic async reply fetching for remote conversations, and permanent HTTP message signature support for improved federation.
Quote posts allow users to reference other posts while adding commentary. The system includes privacy states that automatically hide quotes from blocked or muted accounts, maintaining user control over content visibility.
HTTP message signatures ensure secure and verifiable communication between instances, improving federation reliability and protocol compliance for server administrators.
Async reply fetching automatically retrieves missing replies to remote statuses, creating more complete conversation threads across the federated network for better user experience.
Mastodon 4.5 may have compatibility issues with older clients, but it maintains backward compatibility where possible, and instance administrators should update for best performance and feature access.