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version 1.70, 2023/10/14 18:24:33 version 1.71, 2023/10/14 18:30:35
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         a random offset less than the step value.  This can be used to avoid          a random offset less than the step value.  This can be used to avoid
         thundering herd problems where multiple machines contact a server all          thundering herd problems where multiple machines contact a server all
         at the same time via cron jobs.          at the same time via cron jobs.
   <li>Introduce a new group "_shutdown". Previously the "operator"  
         group gave a user the ability to shutdown(8) a system. But this group  
         also comes with superuser abilities for dumping disks and manipulating  
         tape drives. With this change, the permissions are separated and users  
         using the shutdown/reboot functionality with group "operator" will  
         notice it no longer works. They need to move themselves to the new  
         group.  
   <li>Extend and improve the ibuf API in <a    <li>Extend and improve the ibuf API in <a
         href="https://man.openbsd.org/ibuf_add_buf.3">libutil</a> and add          href="https://man.openbsd.org/ibuf_add_buf.3">libutil</a> and add
         function for more specific data types, for modifying data at specific          function for more specific data types, for modifying data at specific
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   <li>In <a href="https://man.openbsd.org/malloc.3">malloc(3)</a>,    <li>In <a href="https://man.openbsd.org/malloc.3">malloc(3)</a>,
       check all chunks in the delayed free list for write-after-free.        check all chunks in the delayed free list for write-after-free.
   <li>The <a href="https://man.openbsd.org/shutdown.8">shutdown(8)</a>    <li>The <a href="https://man.openbsd.org/shutdown.8">shutdown(8)</a>
       program can now only be executed by members of the        program can now only be executed by members of the new
       <code>_shutdown</code> group.  The idea is that system        <code>_shutdown</code> group.  The idea is that system
       administrators can now remove most users from the excessively        administrators can now remove most users from the excessively
       powerful <code>operator</code> group, which in particular        powerful <code>operator</code> group, which in particular
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Removed from v.1.70  
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  Added in v.1.71