i2p.www/i2p2www/blog/2012/10/27/I2P_0.9.3_released.rst

=============
0.9.3 Release
=============
.. meta::
   :date: 2012-10-27
   :category: release
   :excerpt: 0.9.3 includes extensive low-level changes to the queueing of messages in the router.
             We implement the CoDel Active Queue Management (AQM) algorithm. We also unify the
             queueing and priority mechanisms in the transports to aid diagnosis and reduce network
             latency. Work continues on fixing UDP transport bugs and making UDP more resistant to
             attacks. There are more changes to improve the performance of the router and reduce its
             memory usage. Also, we enable i2psnark's DHT support, introduced last release, by default.

0.9.3 includes extensive low-level changes to the queueing of messages in the router.
We implement the CoDel Active Queue Management (AQM) algorithm.
We also unify the queueing and priority mechanisms in the transports to aid diagnosis and reduce network latency.
Work continues on fixing UDP transport bugs and making UDP more resistant to attacks.
There are more changes to improve the performance of the router and reduce its memory usage.
Also, we enable i2psnark's DHT support, introduced last release, by default.
As usual, there's also lots of bug fixes in this release, so updating is recommended.

Files are available on the `download page`_.

.. _`download page`: {{ get_url('downloads_list') }}

**RELEASE DETAILS**

**Major Changes**

- Active Queue Management
- Priority queues
- I2PSnark DHT: Several bug fixes, enable by default.

**Bug Fixes**

- Several SSU fixes including memory leak, and better handling of routers behind firewalls that change UDP ports; additional defenses for malicious packets.
- Fix piece selection (rarest-first) bugs in i2psnark
- Fix bug causing multiple browsers to open at startup</p>

**Other**

- Improvements in caching
- Several synchronization fixes and lock contention reduction
- Major reduction in SSU buffers memory use
- Fix streaming connection timeout back to 1 minute, was inadvertently changed to 5 minutes; set i2ptunnel server read timeout to 5 minutes, was unlimited
- Improved defenses in i2ptunnel for &quot;darkloris&quot;
- More validation at torrent creation in i2psnark
- Several parameter changes in SSU to improve throughput
- New event log for major events including restarts; show multiple restart lines on graphs
- Remove duplicate messages from logs
- Don't respond to blocked streaming connections with a reset, just drop
- Remove all uses of inefficient SimpleTimer
- More checks for valid IPs and ports entered in console
- Fix bug that wasted a lot of entropy
- Translation updates: Italian, Portuguese, Spanish, Swedish
- Add non-NIO configuration in jetty.xml, recommended for Java 5
- Update GeoIP data (new installs and PPA only)</p>


**SHA256 Checksums:**

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