====== Version 6.0 Sevastopol ======
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The main changes to the 6.1 version Sevastopol((Sevastopol - the City of Military Glory, hero-city, the twin city of our hometown - St. Petersburg.  The largest  	Crimea's operators: SevStar, Crimcom, Miranda are our customers)) 

  - Radius integration is added to support functions [[dpi:bras_bng:general_setup#fastdpi_l3_bras_setup|L3-Connected BRAS]]
  - Bugs revealed at the software implementation phase are fixed

The changes to the 6.2 version:

  - Minor corrections 
 
The changes to the 6.3 version:
  - Too long URL support by setting the UrlRedir parameter is fixed
  - Notification service operation in case of subscribers with multiple IP-addresses assigned (bind_multi) is fixed
  - SNI check in case of interoperation of the advertising block and the blacklist services is fixed

In order to check the currently installed version enter the command
<code>
yum info fastdpi
</code>
 
Downgrade to the version 5.7.1:

<code>
yum downgrade fastdpi-5.7-1
</code>

After updating or downgrading, a service restart is required:

<code>
service fastdpi restart
</code>

:!: Do not upgrade the Linux kernel. In the new version of kernel-2.6.32-431.29.2 or later, binary compatibility with Kernel ABI is broken and the network driver will not boot after the update. If you already have upgraded, then at the time of solving the problem, please configure the grub boot loader to load the previous kernel version (in the /etc/grub.conf file set default=1).