• Posted: 2022-11-21
  • Author: zzz
  • Posted in release

I2P release 2.0.0 enables our new UDP transport SSU2 for all users, after completion of minor features, testing, and numerous bug fixes.

We also have fixes all over, including for the installer, network database, adding to the private address book, the Windows browser launcher, and IPv6 UPnP.

As usual, we recommend that you update to this release. The best way to maintain security and help the network is to run the latest release.



  • i2ptunnel: Support SHA-256 digest proxy authentication (RFC 7616)
  • SSU2: Connection migration
  • SSU2: Immediate acks
  • SSU2: Enable by default

Bug Fixes

  • i2ptunnel: Fix IRC USER line filtering
  • Installer: Fix path for Windows service, caused local eepsite to be broken
  • Installer: Fix error on Windows when username contains a space
  • NetDB: Database store message handling fixes
  • NetDB: Fix reseeding when clock is skewed
  • Router: Deadlock fix
  • SSU2: Fix packets exceeding MTU
  • SSU2: Fix ping packets less than minimum size
  • SSU2: Fix handling of termination acks
  • SusiDNS: Fix adding entry to empty address book
  • SusiMail: Fix dark theme button icons
  • UPnP: IPv6 fix
  • Windows: Fix launching preferred browser at startup


  • Deadlock detector improvements
  • Debian: Change dependency from libservlet3.1-java to libjsp-api-java and libservlet-api-java
  • i2psnark: Increase max pieces to 64K
  • i2psnark: Add links to additional instances in the console
  • Option to compress router logs
  • Translation updates

Full list of fixed bugs

SHA256 Checksums:

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