-- Spectre and Meltdown vulnerabilities
-- Change in MX sources
-- MX Linux on social media: here
-- Mepis support still here
-- MX-17.1 Final release info here
-- antiX-17 release info here
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There were a lot of the same type of problems on the Debian forums after the stock kernel updated to 4.9.88, so the change must have been made around then. It also seems to have been made to newer kernels such as the 4.16.5 in upstream and backports, too.