Important point to consider before you upgrade to v18.5 MR2
An upgrade to 18.5 MR2 refreshes the firewall certificate used by endpoints to send a heartbeat to the firewall. To make sure that endpoints can download the refreshed certificate from Sophos Central after the firewall is upgraded to 18.5 MR2, see Security Heartbeat connection issue with 18.5 MR2.
FIPS 140-2 certification
You can configure Sophos Firewall to use a cryptography library that is certified for the Federal Information Processing Standard 140-2 (FIPS 140-2) level 1 for the following appliances:
- XGS series hardware
- Virtual machines