libxtables12 - 1.8.10-4+b1 main

The iptables/xtables framework has been replaced by nftables. You should
consider migrating now.
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However, even if a given system may be fully running on native nftables,
there are other reasons why libxtables might be installed. For one, nftables
itself uses it to be able to display old rulesets that were created using
xtables extensions (to help folks migrate). Other third-party software might
also be linked to this library.
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This library being installed in the system should be harmless in any case.
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This package contains the user-space interface to the Netfilter xtables
kernel framework.