🚀 Rspamd 3.14.0 Released!

Date: November 10, 2025 | Type: Major Release

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🔥 Major Features

🎯 HTML Fuzzy Hashing

• Structural similarity detection for HTML content (#5661, #5720)
• Per-rule text_hashes toggle for HTML-only matching

🌐 TCP Fuzzy Protocol

• Full TCP support with auto-switch from UDP (#5669)
• Production-ready connection management and framing

🔗 Advanced URL Processing

• New task:get_cta_urls() API for CTA detection (#5732)
• DoS protection: hash-based deduplication with 50k URL limit
• HTML URL rewriting infrastructure (#5676)

🤖 AI & WebUI

• Web search context for LLM plugin with Redis caching (#5732)
• Dark mode with auto-detection (#5725)

📧 Email & Integration

• Advanced aliases with loop detection (#5655)
• Milter ESMTP argument parsing with Lua API (#5663)
• Postfix wizard for automated integration (#5667)

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🐛 Critical Fixes

🌐 DNS Stability

• Fixed UDP→TCP packet truncation on retransmits (#5739)
• Fixed transaction ID collision and nameserver round-robin (#5721, #5739)

🔒 Memory & Stability

• Fixed allocator crashes (jemalloc/malloc mixing) (#5721, #5724)
• Fixed memory leaks in fuzzy storage, OpenSSL, UCL (#5709)
• Hyperscan runtime version check prevents cache corruption (#5724)

📊 DMARC & Protocol

• Fixed Redis connection exhaustion with batching + GC (#5737)
• ARC RFC 8617 compliance + ed25519 support (#5684)
• Composites two-phase evaluation (#5681)

🐧 BSD & Security

• Fixed FreeBSD/NetBSD/OpenBSD builds (#5726, #5729)
• Fuzzy TCP race conditions and buffer overflows (#5669)

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⚡ Performance

• khash migration for better fuzzy_check performance (#5720)
• Intrusive heap implementation (#5693)
• Configurable Bayes guards (#5701)

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Total: 139 improvements across 45 PRs

🔗 GitHub | Changelog

Major upgrade with HTML fuzzy matching, critical DNS fixes, and memory leak resolution. Highly recommended! 🎯