update system versions

Author: vladak

file-api.tex

@@ -462,8 +462,8 @@
 be to use the \texttt{select} call, see page \pageref{SELECT}.
 \item Writing data of length \texttt{PIPE\_BUF} bytes or less
 (\texttt{limits.h}) is guaranteed as atomic, i.e. data will not be intermingled
-with data written by other writers.  For example, on Linux kernel 4.x it is 4096
-bytes, on Solaris 11 it is 5120 bytes, and on FreeBSD 8.2 it is only 512 bytes.
+with data written by other writers.  For example, on Linux kernel 6.x it is 4096
+bytes, on Solaris 11 it is 5120 bytes, and on FreeBSD 15.0 it is only 512 bytes.
 It is obvious from the above that if less or equal than \texttt{PIPE\_BUF}
 bytes is written, the data is always written whole or the operation fails,
 and if \texttt{O\_NONBLOCK} is set and the whole data buffer cannot be written