Intel’s months-long marathon of releasing CPU microcode patches to protect against critical Meltdown and Spectre exploits is ending, but some older processors that were promised firmware updates won’t be receiving them. The chipmaker’s latest microcode revision update now says planned revisions are “stopped” for CPUs based on the Penryn (2007), Yorkfield (2007), Wolfdale (2007), Bloomfield (2008), Clarksfield (2009), Jasper Forest (2010), and Atom “SoFIA” (2015), as Tom’s Hardware first noticed.

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