Roll-out follows the deployment of working patches for Skylake and newer CPUs last week. Last week, Intel released overhauled Spectre fixes for all its newest CPUs ? from Skylake onwards ? and now the firm has pushed out fresh patches for many Broadwell and Haswell processors too (5th- and 4th-gen models).

These are working Spectre patches that don't cause the instability problems which the previous fixes did, which led to Intel recommending that folks don't install them.