Packed with mitigations for the Meltdown and Spectre security vulnerabilities unearthed earlier this year and discovered to put billions of devices at risk of attacks, DragonFly BSD 5.2 is here to make sure you’re running a secure and safe Unix-like operating system on your personal computer or server. In addition to the Meltdown and Spectre mitigations, DragonFly BSD 5.2 adds significant improvements to the HAMMER2 filesystem for a performance boost, though clustered support isn’t yet available. However, the DragonFly BSD developers recommend using HAMMER2 as default root filesystem in non-clustered mode.