### CONTEXT (Previous Events):
<system_output timestamp="2453.92104">I: Unpacking libidn2-0:i386...
</system_output>
<system_output timestamp="2454.18135">I: Unpacking liblz4-1:i386...
</system_output>
<system_output timestamp="2454.459791">I: Unpacking liblzma5:i386...
</system_output>
<system_output timestamp="2454.65444">I: Unpacking libmd0:i386...
</system_output>
<system_output timestamp="2454.806986">I: Unpacking libmount1:i386...
</system_output>
<system_output timestamp="2455.016339">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="2455.284789">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="2455.586534">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="2455.934016">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="2456.334042">I: Unpacking libpam-runtime...
</system_output>
<system_output timestamp="2456.827225">I: Unpacking libpam0g:i386...
</system_output>
<system_output timestamp="2457.015142">I: Unpacking libpcre2-8-0:i386...
</system_output>
<system_output timestamp="2457.240768">I: Unpacking libseccomp2:i386...
</system_output>
<system_output timestamp="2457.458859">I: Unpacking libselinux1:i386...
</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="2457.613472">I: Unpacking libsemanage-common...
</system_output>

Answer: 2457.613472, old event