Mastodon
Your self-hosted, globally interconnected microblogging community
Alternative to: Twitter/X, Threads
v4.6.3
2026-07-03This release introduces a new update notification in the navbar, renders post images in emails, and includes various bug fixes and dependency updates.
v4.6.2
2026-06-25Updates FFmpeg in docker container images to address a critical security vulnerability (CVE-2026-8461).
v4.5.13
2026-06-25Updates FFmpeg in docker container images to fix a critical security vulnerability (CVE-2026-8461).
v4.4.20
2026-06-25This release updates FFmpeg in docker container images to address a critical security vulnerability (CVE-2026-8461).
v4.6.1
2026-06-24This patch release for 4.6 updates dependencies, fixes various web UI and API bugs, and adds avatar and header descriptions to the update_credentials API.
v4.5.12
2026-06-24This release addresses a TLS certificate verification security vulnerability and fixes a media sensitivity marking issue in the web UI.
v4.4.19
2026-06-24This release addresses a security vulnerability regarding TLS certificate verification and fixes an issue with marking media as sensitive.
v4.6.0
2026-06-17Mastodon 4.6 introduces account collections, email subscriptions, a redesigned profile UI, and updated dependency requirements.
v4.6.0-rc.2
2026-06-15This pre-release introduces collections, email subscriptions, a redesigned profile UI, and updated system requirements including Ruby 3.3 and Node 22.
v4.6.0-rc.1
2026-06-12Introduces collections, email subscriptions, a redesigned profile UI, and updated system requirements including Ruby 3.3 and Node 22.
v4.6.0-beta.1
2026-06-03This pre-release introduces account collections, email subscriptions, a redesigned profile UI, and updated dependency requirements including Ruby 3.3 and Node 22.
v4.5.11
2026-06-03This release addresses security vulnerabilities related to attribution domain spoofing and denial of service, updates dependencies, and fixes a bug regarding large media descriptions in remote statuses.
v4.4.18
2026-06-03This update addresses security vulnerabilities related to attribution domain spoofing and DoS, updates dependencies, and fixes an issue with large media descriptions in remote statuses.
v4.5.10
2026-05-20This release addresses security vulnerabilities related to SSRF and Linked-Data Signature bypass, fixes object types, and removes unused devise strategies.
v4.4.17
2026-05-20This release addresses security vulnerabilities including SSRF and Linked-Data Signature bypasses, updates dependencies, and removes unused devise strategies.
v4.3.23
2026-05-20This release addresses security vulnerabilities including SSRF protection and Linked-Data Signature bypasses, and updates dependencies.
v4.5.9
2026-04-15This release addresses security vulnerabilities regarding email verification, updates dependencies, and fixes bugs related to quoting and notifications.
v4.4.16
2026-04-15This release addresses a security vulnerability regarding email verification, updates dependencies, and fixes a JSON-LD context definition.
v4.3.22
2026-04-15This release addresses a security vulnerability regarding email address verification, updates dependencies, and adds a trademark warning to the setup task.
v4.5.8
2026-03-24This release addresses security vulnerabilities, increases remote media description limits, and includes various bug fixes and improvements.
v4.4.15
2026-03-24Mastodon v4.4.15 includes security fixes for quote authorizations and open redirects, updates to media description limits, and various bug fixes across the platform.
v4.3.21
2026-03-24This release addresses security vulnerabilities, updates dependencies, and includes various bug fixes and a small feature for searching private GtS posts.
v4.5.7
2026-02-24This release addresses security vulnerabilities regarding FASP requests, fixes various bugs related to emojis and post processing, and adds a new option to the emoji purge command.
v4.4.14
2026-02-24This release includes security fixes for FASP requests, a new emoji purge option for suspended accounts, and bug fixes for custom emojis and duplicate hashtags.
v4.3.20
2026-02-24Mastodon v4.3.20 adds a suspended-only option to emoji purging and fixes hashtag processing for object updates.
v4.5.6
2026-02-03This release fixes a security vulnerability regarding blocked accounts in ActivityPub caching and addresses several bugs related to account migrations and notifications.
v4.4.13
2026-02-03This release addresses a security vulnerability regarding ActivityPub collection caching and fixes bugs related to relationship caches, invalid tags, and connection handling.
v4.3.19
2026-02-03This release addresses a security vulnerability regarding blocked accounts in ActivityPub collection caching and fixes bugs related to relationship caches, invalid tags, and connection handling.
v4.5.5
2026-01-20This release addresses several security vulnerabilities, fixes various bugs related to ActivityPub and UI, and requires assets recompilation.
v4.4.12
2026-01-20This release addresses several security vulnerabilities, including missing limits on federated properties and user-provided fields, alongside various bug fixes and performance improvements.
v4.3.18
2026-01-20This release addresses several security vulnerabilities related to federated properties and user fields, alongside various bug fixes for feed management and ActivityPub dispatch.
v4.5.4
2026-01-07This release addresses several security vulnerabilities, including SSRF protection and ownership check bypasses, and includes numerous bug fixes for emojis, notifications, and permissions.
v4.4.11
2026-01-07This update addresses security vulnerabilities regarding SSRF protection and relationship ownership checks, while fixing domain-blocked user mentions and HTTP Signature verification statuses.
v4.3.17
2026-01-07This release addresses security vulnerabilities regarding SSRF protection and ownership checks, and fixes an issue with mentions of domain-blocked users.
v4.2.29
2026-01-07This release fixes an SSRF protection bypass and resolves an issue where mentions of domain-blocked users were being processed.
v4.5.3
2025-12-08This release addresses a security vulnerability regarding private post information leakage and includes various bug fixes for embeds, polls, and conversations.
v4.4.10
2025-12-08This release addresses a security vulnerability regarding private post information leaks and fixes several bugs related to YouTube embeds, quoted polls, and S3 operations.
v4.3.16
2025-12-08This release addresses a security vulnerability regarding private post information leaks and fixes issues with YouTube embeds and S3 batch delete operations.
v4.2.28
2025-12-08v4.5.2
2025-11-20This release fixes various bugs related to quote posts, keyboard shortcuts, hashtag completion, and storage schema upgrades, while requiring assets recompilation.
v4.4.9
2025-11-20Mastodon v4.4.9 fixes issues with storage-schema upgrades, post updates, and quote filtering.
v4.3.15
2025-11-20Mastodon v4.3.15 fixes an ArgumentError in tootctl upgrade storage-schema and resolves an issue where old posts were treated as new during updates.
v4.5.1
2025-11-13This patch release for version 4.5 includes various fixes for the user interface, API responses, and asset builds.
v4.5.0
2025-11-06Mastodon 4.5 introduces support for quote posts, improved feed visibility controls, and updated emoji rendering, while increasing minimum requirements for Redis, PostgreSQL, and Node.js.
v4.5.0-rc.3
2025-11-05This pre-release introduces quote posts, enhanced reply fetching in the web UI, the ability to block words in usernames, and updated emoji rendering, alongside several security and UI fixes.
v4.5.0-rc.2
2025-10-31This pre-release introduces quote posts, a revamped composer interface, and support for fetching and refreshing replies in the web UI.
v4.5.0-rc.1
2025-10-29This pre-release introduces quote posts, enhanced reply fetching in the web UI, and the ability to block words in usernames, alongside various security fixes and UI improvements.
v4.5.0-beta.2
2025-10-21This pre-release introduces quote posts, improved reply fetching in the web UI, the ability to block words in usernames, and updates to emoji rendering and security.
v4.4.8
2025-10-21This release addresses a security vulnerability by fixing a quote control bypass.
v4.5.0-beta.1
2025-10-15This pre-release introduces support for quote posts, a revamped composer interface, and updated dependency requirements, including Redis 7.0 and Sidekiq 8.
v4.4.7
2025-10-15This release fixes bugs related to soft-deleted quote posts, moderation warning emails, and a typo in allow_referrer_origin.
v4.4.6
2025-10-13This release addresses several security vulnerabilities, adds support for deleted post quotes, and fixes various bugs related to quote posts and admin dashboard counts.
v4.3.14
2025-10-13This release addresses several security vulnerabilities related to streaming server connections and OAuth scopes, updates dependencies, and fixes a redirect issue for malformed URLs.
v4.2.27
2025-10-13This release addresses several security vulnerabilities related to streaming server connections, session invalidation, and OAuth scopes, and updates the rack and uri dependencies.
v4.4.5
2025-09-23This release introduces search support for quoted posts, updates how silenced quoted posts are displayed, and fixes various update processing and content warning bugs.
v4.3.13
2025-09-23This release includes security dependency updates and fixes for out-of-order Update and Create processing.
v4.2.26
2025-09-23This release updates dependencies for security and fixes issues regarding the processing of out-of-order Create and Update events.
v4.4.4
2025-09-16This release includes security dependency updates and various bug fixes for the WebUI, poll handling, and administrative tools.
v4.3.12
2025-09-16This release includes security dependency updates and fixes for remote edited statuses, poll editing, and self-destruct scheduler behavior.
v4.2.25
2025-09-16This release fixes the processing of remote edited statuses containing new media and no text.
v4.4.3
2025-08-05This release addresses security vulnerabilities, fixes several race conditions and WebUI crashes, and updates quote post processing and trending restrictions.
v4.3.11
2025-08-05This release includes security updates for rate-limit handling, dependency updates, and various fixes for race conditions, WebUI crashes, and recommendation logic.
v4.2.24
2025-08-05This release includes security updates for dependencies and rate-limit handling, along with fixes for a race condition and WebUI crashes.
v4.4.2
2025-07-23This release includes security dependency updates and various bug fixes for accessibility, styling, and quote processing, requiring assets recompilation.
v4.3.10
2025-07-23This release includes security updates for dependencies.
v4.2.23
2025-07-23This release focuses on security updates by updating dependencies.
v4.4.1
2025-07-09This hotfix for version 4.4.1 addresses various build and deployment issues, including Vite build errors and asset compilation failures when Redis is unavailable.
v4.4.0
2025-07-08Mastodon 4.4 introduces remote quote post support, new profile widgets, age verification on sign-up, and a transition from Webpack to Vite, while updating minimum dependency versions.
v4.3.9
2025-07-02This release includes various bug fixes for emoji caching, moderation views, search operators, and video processing, along with improved handling of remote attachments and OIDC account creation.
v4.2.22
2025-07-02This release includes various bug fixes for emoji caching, moderation views, search operators, and video processing, alongside updates to video dimension handling.
v4.4.0-rc.1
2025-07-01This pre-release introduces a new Web UI design, experimental remote quote post support, terms of service management, and updated dependency requirements.
v4.4.0-beta.2
2025-06-17This pre-release introduces experimental quote post support, a new featured tab for profiles, Terms of Service settings, age verification, and a migration from Webpack to Vite.
v4.4.0-beta.1
2025-06-04This pre-release introduces a featured tab for profiles, experimental remote quote post support, age verification on sign-up, and transitions the build system from Webpack to Vite.
v4.3.8
2025-05-06This release includes security updates for URL scheme validation, dependency updates, and several bug fixes regarding API redirects and sign-up confirmation.
v4.2.21
2025-05-06This release includes security updates for URL scheme validation, dependency updates, various bug fixes, and a deprecation warning for REDIS_NAMESPACE.
v4.3.7
2025-04-02This release introduces profile update debouncing, improves account suspension federation, and fixes various bugs related to emojis, filters, and HTML handling.
v4.2.20
2025-04-02This release introduces profile update debouncing, improved suspension federation, and pagination for partial collections, alongside various bug fixes and adjustments to URL TTLs.
v4.1.25
2025-04-02This release adds support for paginating partial collections in SynchronizeFollowersService and fixes a cache busting URL issue.
v4.3.6
2025-03-13This release includes critical security fixes for SAML single-sign-on, dependency updates, and a fix for Stoplight errors when using REDIS_NAMESPACE.
v4.2.19
2025-03-13This release includes critical security fixes for SAML single-sign-on, updates dependencies, and fixes Stoplight errors when using REDIS_NAMESPACE.
v4.1.24
2025-03-13This update includes security dependency updates and a fix for Stoplight errors when using REDIS_NAMESPACE.
v4.3.5
2025-03-10This release improves hashtag suggestions and fixes bugs related to iOS 18 HEIF images, streaming server filtering, content warning previews, and the moderation interface.
v4.2.18
2025-03-10This release improves hashtag suggestions and fixes issues with iOS 18 HEIF images and public timeline language filtering.
v4.3.4
2025-02-27This release addresses several security vulnerabilities and includes numerous bug fixes and minor feature improvements.
v4.2.17
2025-02-27This release provides critical security fixes and dependency updates, while removing support for Ruby 3.0.
v4.2.16
2025-02-27This release includes critical security fixes for HTML sanitization, sign-up email verification, and domain block disclosure, along with several bug fixes for emojis, polls, and featured tags.
v4.1.23
2025-02-27This release provides important security fixes for HTML sanitization and domain block disclosure, along with several bug fixes for emojis, HTTP redirects, polls, and featured tags.
v4.3.3
2025-01-16This release addresses a security vulnerability regarding account URI validation, updates dependencies, and fixes several bugs related to notifications, migrations, and user management.
v4.2.15
2025-01-16This release fixes insufficient validation of account URIs, resolves Dockerfile and user deletion bugs, and updates dependencies.
v4.1.22
2025-01-16This release fixes an account URI validation security vulnerability and bugs related to Dockerfile builds and unconfirmed user deletion.
v4.3.2
2024-12-03This release introduces a new tootctl feeds vacuum command, updates Content Warning designs, and includes numerous bug fixes across timeline delivery, notifications, and UI layout.
v4.2.14
2024-12-03This release introduces a new tootctl feeds vacuum command and fixes several issues related to inactive user timelines and attachment deletion.
v4.1.21
2024-12-03This release fixes issues with inactive users' timelines and direct inbox delivery, and updates dependencies for security.
v4.3.1
2024-10-21Mastodon v4.3.1 introduces follow notification grouping, a 6-hour mute option, and numerous bug fixes, while removing the ability to get embed codes for remote posts.
v4.3.0
2024-10-08This release introduces server-side notification grouping, enhanced notification filtering, a modernized web UI with Material Symbols, and support for libvips, while updating minimum requirements for Ruby, Node.js, and PostgreSQL.
v4.3.0-rc.1
2024-09-30This pre-release introduces server-side notification grouping, a redesigned web UI, OpenTelemetry integration, and updated minimum requirements for Ruby, Node.js, and PostgreSQL.
v4.2.13
2024-09-30This update fixes a ReDoS security vulnerability, addresses various bugs in feed rebuilding and caching, and adds an update notification to the admin dashboard.
v4.1.20
2024-09-30This release fixes a ReDoS vulnerability, improves HTTP signatures, and resolves caching and feed rebuild bugs.
v4.3.0-beta.2
2024-09-17This pre-release introduces server-side notification grouping, a redesigned web UI, and libvips support, while updating minimum requirements for Ruby, Node.js, and PostgreSQL.
v4.3.0-beta.1
2024-08-23This pre-release introduces server-side notification grouping, revamped notification policies, a redesigned web UI, and OpenTelemetry integration, while updating minimum requirements for Ruby, Node.js, and PostgreSQL.