Coming only two weeks after the Tails 3.4 release, which included patches for the Meltdown and Spectre security vulnerabilities publicly disclosed earlier this month, today’s Tails 3.5 update is here to bump the Linux kernel to version 4.14.13 and include the microcode firmware for AMD CPUs to mitigate the Spectre flaw. Tails 3.4 included partial mitigation for the Spectre security vulnerability, but now it’s been patched for AMD processors too with the Tails 3.5 update. If in doubt, you can always check to see if your Tails installation is still vulnerable to the Meltdown and Spectre security vulnerabilities or not.