I read ar from the wiki

In the Linux Standard Base (LSB),
ar has been deprecated and is expected to disappear in a future release of that standard.

However I always look this message while I’m building Linux kernel:

...
  CC      mm/process_vm_access.o
  CC      mm/page_alloc.o
  CC      lib/fdt_wip.o
  CC      fs/remap_range.o
  CC      lib/flex_proportions.o
  CC      net/socket.o
  CC      sound/core/init.o
  CC      lib/idr.o
  CC      drivers/gpio/gpiolib-of.o
  AR      sound/isa/ad1816a/built-in.a
  AR      sound/pci/ac97/built-in.a
  AR      sound/isa/ad1848/built-in.a
  CC      kernel/irq/manage.o
  AR      sound/pci/ali5451/built-in.a
  AR      sound/isa/cs423x/built-in.a
  AR      sound/pci/asihpi/built-in.a
  AR      sound/isa/es1688/built-in.a
  AR      sound/pci/au88x0/built-in.a
  AR      sound/isa/galaxy/built-in.a
  AR      sound/pci/aw2/built-in.a
  AR      sound/isa/gus/built-in.a
  AR      sound/pci/ctxfi/built-in.a
  AR      sound/isa/msnd/built-in.a
  AR      sound/pci/ca0106/built-in.a
  AR      sound/isa/opti9xx/built-in.a
  AR      sound/pci/cs46xx/built-in.a
  AR      sound/isa/sb/built-in.a
  AR      sound/pci/cs5535audio/built-in.a
...

Invoking ar a lot when I build Linux kernel.

As the title, Is ar DEPRECATED in Linux?