As the OpenSSL community continues to evolve and foster greater collaboration, understanding real-world performance and industry feedback is of increasing significance. In this session, we share our experience upgrading our firewall portfolio from OpenSSL through 3.4, with a focus on TLS 1.2 and 1.3. We aim to contribute actionable feedback and engage in a broader discussion around tuning, optimization, and future improvements based on our observations and performance data. 📚 Slides & materials: Presentation: This session was recorded at the OpenSSL Conference 2025 in Prague, the annual global meetup of cryptographers, open-source developers, security engineers, and practitioners working with TLS, PKI, and secure communications. 📍 Event: OpenSSL Conference 2025, Prague 📅 Date: October 7-9 2025 🔗 More from OpenSSL Conference 2025: Playlist: Website: 🔍 Find more about organisers: 🙋 Join us at: 🤝 Stay connected: OpenSSL GitHub: LinkedIn: Twitter/X: Facebook: Blog: © 2025 OpenSSL Corporation. #OpenSSL #pqc #Cryptography