We just updated our instance to 4.2.6, which fixed some vulnerabilities. See the full changelog here: https://github.com/mastodon/mastodon/releases/tag/v4.2.6
Release v4.2.6 · mastodon/mastodon

⚠️ This release is an important security release fixing several security issue. Corresponding security releases are available for the 4.1.x branch, the 4.0.x branch and the 3.5.x branch. If you a...

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