Release Notes 1.6.3
===================

NetSpyGlass v1.6.3

Beginning with v1.6.3, NetSpyGlass requires Java 8


Improvements, Important Changes and New Features
------------------------------------------------

 - this release includes minor fixes and refactoring in both the backend and
   frontend code

 - improved algorithm used to load devices from the configuration file in
   the case when a device was first discovered as an unknown BGP4 peer and
   later added to the config with the same IP address.

 - NET-1434: variable builder Python hook script has been simplified; various
   functions are now class members to make it easier to reuse them in the derived
   classes; boolean class variable `make_interface_packet_counter_vars` can be
   used to turn on generation of the monitoring variables that collect network
   interface packet counets. See :ref:`how_to_override_defaults`.

 - NET-1433: improved discovery of network topology via LLDP for devices where
   local system Id does not match MAC address of any interface (e.g. F10)

 - NetSpyGlass server forwards some system error messages to the UI via UI
   pop-up notifications. At this time these are limited to the severe SQL
   database errors, such as connection loss, database running in read-only
   mode or insufficient user priviliges.


Bug fixes
---------

 - fixed a bug that caused loss of synchronization of the monitoring variable sets in
   a monitor and other servers when some variable disappeared after network discovery.
   Because of this bug, compute and UI servers kept trying to subscribe to a variable
   that did not exist in the monitor anymore

 - NET-1436: fixed discovery of LAG interface group for Dell PowerConnect switches.