- Individual Eve (JSON) loggers have been removed. For example,
``stats-json``, ``dns-json``, etc. Use multiple Eve logger instances
if this behavior is still required. See :ref:`multiple-eve-instances`.
+- Unified2 has been removed. See :ref:`unified2-removed`.
Upgrading 4.1 to 5.0
--------------------
--- /dev/null
+:orphan: Document not referenced in a toctree, so add this.
+
+.. _unified2-removed:
+
+Unified2 Output Removed
+-----------------------
+
+As of Suricata 6.0 the Unified2 output has been removed. The legacy
+Unified2 format lacks the flexibility found in the Eve format, and is
+considerably more difficult to integrate with other tools. The
+current recommended output is :ref:`eve`.
+
+Packet (Payload) Logging
+------------------------
+
+By default, Eve does not log the packet or payload like Unified2
+does. This can be done with Eve by enabling the payload in Eve alert
+logs. This will log the payload in base64 format to be compatible with
+the JSON format of Eve logs.
+
+It is important to note that while Eve does have an option to log the
+packet, it is the payload option that provides the equivalent data to
+that of the Unified2 output.
+
+Migration Tools
+---------------
+
+Meer
+~~~~
+
+Meer is an Eve log processing tool that can process Eve logs and
+insert them into a database that is compatible with Barnyard2. This
+could could be used as a Barnyard2 replacement if your use of Unified2
+was to have Suricata events added this style of database for use with
+tools such as Snorby and BASE.
+
+More information on Meer can be found at its GitHub project page:
+`https://github.com/beave/meer <https://github.com/beave/meer>`_.
+
+.. note:: Please note that Meer is not supported or maintained by the
+ OISF or the Suricata development team.