@MastodonEngineering@mastodon.social
2025-02-27 16:43 UTC
If you are running Mastodon 4.2: Mastodon 4.2.17 drops support for Ruby 3.0 (which is no longer supported upstream).
If you are using Ruby 3.0, you can update to Mastodon 4.2.16 which contains the latest security fixes, but please note that this version has a known vulnerability if you are using SAML authentication with Mastodon.
If you are running Mastodon 4.2 + Ruby 3.0, we strongly encourage you to update to Ruby 3.2 and Mastodon 4.2.17 or above.
#mastoadmin
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@MastodonEngineering@mastodon.social 2025-02-27 16:43
If you are running Mastodon 4.1, note that it only supports Ruby 3.0 (which is no longer supported upstream) and is subject to the above SAML security issue. Mastodon 4.1 will no longer receive patches (including for security issues) after 2025-04-08 and we strongly encourage you to update to a newer Mastodon version. #mastoadmin