Azureus 2.3.0.2

[news=http://filesharingtalk.com/vb3/logos/az.gif]Changes:
AZUREUS CHANGELOG
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2005.05.25 | Azureus 2.3.0.2

FEATURE: UI | Console UI now has update check, alerting and DHT stats [Parg]
FEATURE: UI | SWT make torrent wizard remembers value for "add other hashes" [Parg]
FEATURE: UI | Console UI logging config [Fatal]
FEATURE: Plug | Added progress indicator and torrent stats to tracker web templates [Parg, Gouss]
FEATURE: Plug | Availability column added to webui + some alignment changes [Parg]
FEATURE: Plug | XML/http interface access to individual torrent file stats added [Parg]

CHANGE: Core | CPU usage reductions when connected to many idle peers [Nolar]
CHANGE: Core | Disable console view logging by default [Nolar]
CHANGE: Core | Memory usage reductions and optimizations [Gudy, Parg, Nolar]
CHANGE: Core | Improved long-term connection-attempt management [Nolar]
CHANGE: Core | DHT bootstrap in absence of version-check server improved [Parg]
CHANGE: Core | DHT IP filter reports reduced [Parg]
CHANGE: Core | Disk manager read/write threads now started on demand [Parg]
CHANGE: UI | Default for "add other hashes" in make torrent wizard and sharing config changed to false [Parg]
CHANGE: UI | Retention of log history removed as taking up to 1MB mem [Parg]
CHANGE: UI | Added missing spaces back into SWT dock item's tooltip [Parg]
CHANGE: UI | Restore version number on status bar and add protocol rate to the stats view [Nolar]
CHANGE: Plug | JPC plugin refactoring to help reduce cache server load [Nolar]

BUGFIX: Core | Fix compatibility with JRE 1.4 series under Win32 due to NIO bug [Nolar]
BUGFIX: Core | Ignore peers with these data ports config option didn't work the DHT and PEX obtained peers [Nolar]
BUGFIX: Core | DHT IP derivation from contacts fixed [Parg]

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Man I wish I understood this stuff. I just upgraded to 2.3.0.0. Would it be advisable to get this release?

The version you have should be fine, if you're not having any problems with it.
You will want to upgrade eventually but it's not needed.