Download I2P 0.8.1

I2P focuses on anonymizing communication flows. The project started in 2003 as a proposal to freenet and has evolved over time into a standalone program. For more information, please refer to this page. The developers have released version 0.8.1 with the following announcement:

0.8.1 Release

The 0.8.1 release contains the usual collection of bug fixes and performance tweaks. There is also a new i2psnark theme and several translation updates. Upgrading is recommended.

Please help grow the network. Give the developers feedback on IRC #i2p or forum.i2p2.de and get involved, spread the word, and donate! We are still looking for help on new and existing translations. Please volunteer on IRC #i2p.

Release details:
1.6 or higher JDK now required to build from source.
1.5 or higher JRE still OK to run I2P.

Bug fixes:

• Fix eepget redirect bugs
• Fix bug causing GeoIP lookups to stop
• Don’t let alternative naming services look up b32 addresses
• Try to prevent firewalled routers from running out of introducers
• Try again to fix i2ptunnel nonce bug

Speedups:

• Make streaming flush much faster
• Use flush in more places
• Convert several lists to queues
• Fix crypto YK precalculation
• Disable unused I2CP acknowledgments in several cases
• Don’t route tunnels through peers 0.7.8 and earlier as they have message corruption bugs

I2PSnark:

• Redesign by dr|zed
• File download priority feature
• Lots of bug fixes

File Permissions:

• All user files created by I2P will now be readable only by the owner (mode 600)

Documentation:

• The technical documentation on our website is now current, complete, and accurate. see .
• Javadocs have been updated throughout the source.
• Full Javadocs are now available at .