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_posts/2024-07-12-rspamd-3.9.0.md

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+---
+layout: post
+title: "Rspamd 3.9.0 has been released"
+categories: announce
+---
+
+Today we have released Rspamd 3.9.0 featuring many new features & fixes, the most important of which are highlighted below. Refer to the [migration notes]({{ site.baseurl }}/doc/tutorials/migration.html) for an overview of potentially-breaking changes only.
+
+## Improvements to Bayes configuration
+
+Rspamd now uses a reduced window size of 2 words by default; this change does not require statistics to be retrained. In testing this reduced window size has produced the same or better results with better performance & lower storage requirements. The new `rspamadm classifier_test` utility could be used for your own experiments.
+
+## New GPT module
+
+This release provides a module Rspamd for using LLMs for text classification, you could read more about it in a [dedicated blog post]({{ site.baseurl }}/misc/2024/07/03/gpt.html).
+
+## Improvements to `known_senders` & `replies` modules
+
+These release includes enhancements to the `known_senders` and `replies` modules enabling them to collectively flag verified user contacts, refer to documentation of these modules for more detail.
+
+## Dynamic multipliers for ratelimits are now disabled by default
+
+To prevent likely confusion, dynamic ratelimits are now disabled by default and must be configured explicitly, refer to the migration notes for details how.
+
+## Various bugfixes & new features
+
+* Reworked `grow_factor` to work in an orderly fashion
+* Fixed `SUBJ_ALL_CAPS` for unicase scripts by `@ikedas`
+* Fixed relearning of bayes messages by `@aduernberger`
+* Fixed retrieving word count in antivirus module by `@PxPert`
+* Improvements for rules by `@twesterhever` and `@ishisora`
+
+Thank you to everyone who contributed.