[2.59.0] - 2026-02-09

Added

• Post-quantum NTCP2 crypto(ML-KEM-512, ML-KEM-768, ML-KEM-1024) support if openssl >= 3.5.0
• UDP associate for SOCKS5 proxy
• Trusted routers list for first hop per tunnel
• "i2p.streaming.maxConnsPerMinute" and "i2p.streaming.maxResends" params
• Limited connectivity mode
• *.b32.i2p addresses for SAM datagrams
• Limiting the number of datagrams sent to maintain the consistency of session encryption through UDP tunnels
• Desktop app mode for Haiku
• Ability to suppress X-I2P-* headers for HTTP server tunnel
• Multi cloves garlic message for datagrams
• Network error and testing metrics for I2PControl
• Handle reseed address redirection
• Throttle excessive number of tunnel build message from the same peer
• Localization to Esperanto, Filipino and Finnish

Changed

• Return base64 of ident instead full address for Datagram3 in SAM
• Send ratchet session response for unidirectional traffic for I2CP
• Set default number of generated tags to 800 for a datagram destination
• Check ML-KEM encaps_key section length before decryption
• Create new stream only if bandwidth is available. Close non-responding streams
• Use Datagram3 by default in UDP tunnels
• Floodfills are not introducers
• Disable ipv6 if global ipv6 interface not found
• Network congestion detection algorithm in streaming
• Reply with relay tag only if accept tunnels
• Case-insensitive Content-Length header in I2PControl
• Increase PID string length
• Don't communicate with routers of version < 0.9.58
• Webconsole layout improvements
• Localization to Hebrew
• Reseeds list

Fixed

• Incorrect params length calculation for SAM streams
• Unexpected index in SymmetricKeyTagSet
• Incorrect preferred crypto type if i2cp.leaseSetEncType is not specified
• Decoding %00 in url
• Thread-unsafe localtime()
• NetDb crash on stop
• Peer test result OK in case of another recent peer test
• Published port if full-cone NAT
• Missing trailing newline in I2PControl JSON response
• Language selection in webconsole

That's my favorite p2p program for ed2k/kad and bittorrent since like 2010

Changelog

3.2.1 - 2024/08/19

• upgrade autoconf build system files
• commit configure to git so that source archive is identical to the tag checkout
• disable automatic invocation of autoconf

3.2.0 - 2024/08/17

Supported OCaml versions now are from 4.03 up to 4.14, as a consequence local (in-the-tree) build of OCaml is not supported anymore, you must have OCaml installed to build.

NB newgui2 build is finicky, see README.md for details (tl;dr system packaged OCaml and lablgtk2 or --enable-batch with OCaml 4.05)

• fix duplicated Content-Length header (#82)
• Support miniupnpc 2.2.8 (#101, Sergey Fedorov)
• upgrade upnp/natpmp libraries versions for in-the-tree build (--enable-force-upnp-natpmp)
• fix setting network-specific options from command-line (#34)
• fix build with newer (safe-string) OCaml (#98, #99, Luca Carlon)
• some internal code and build system cleanup
• CryptoPP build fixes (#62, #63, #66, Hin-Tak Leung, Jesús Pérez Rey (Chuso))
• dark theme for the web interface (Luca Carlon)

[2.54.0] - 2024-10-06

Added

• Maintain recently connected routers list to avoid false-positive peer test
• Limited connectivity mode(through proxy)
• "i2p.streaming.profile" tunnel's param to let tunnel select also low-bandwidth routers
• Limit stream's inbound speed
• Periodic ack requests in ratchets session
• Set congestion cap G immediately if through proxy
• Show tunnel's routers bandwidth caps in web console
• Handle immediate ack requested flag in SSU2 data packets
• Resend and ack peer test and relay messages
• "senduseragent" HTTP proxy's param to pass through user's User-Agent

Changed

• Exclude 'N' routers from high-bandwidth routers for client tunnels
• C++11 support has been dropped, the minimal requirement is C++17 now, C++20 for some compilers
• Removed dependency from boost::date_time and boost::filesystem
• Set default i2cp.leaseSetEncType to 0,4 and to 4 for server tunnels
• Handle i2cp.inboundlimit and i2cp.outboundlimit params in I2CP
• Publish LeaseSet with new timestamp update if tunnel was replaced in the same second
• Increase max number of generated tags to 800 per tagset
• Routing path expiration by time instead num attempts
• Save timestamp from epoch instead local time to profiles
• Update introducer's iTag if session to introducer was replaced to new one
• RTT, window size and number of NACKs calculation for streaming
• Don't select same peer for tunnel too often
• Use WinApi for data path UTF-8 conversion for Windows

Fixed

• Jump link crash if address book is disabled
• Race condition if connect through an introducer
• "Date" header in I2PControl response
• Incomplete response from web console
• AEAD verification with LibreSSL
• Number of generated tags and new keys for follow-on tagsets
• Expired leases in LeaseSet
• Attempts to send HolePunch to 0.0.0.0
• Incorrect options size in quick ack streaming packet
• Low bandwidth router appeared as first peer in high-bandwidth client tunnel

[2.53.0] - 2024-07-19

Added

• New congestion control algorithm for streaming
• Support miniupnp-2.2.8
• Limit stream's outbound speed
• Flood to next day closest floodfills before UTC midnight
• Recognize duplicated routers and bypass them
• Random SSU2 resend interval

Changed

• Set minimal version to 0.9.69 for floodfills and 0.9.58 for client tunnels
• Removed openssl 1.0.2 support
• Move unsent I2NP messages to the new session if replaced
• Use mt19937 RNG instead rand()
• Update router's congestion caps before initial publishing
• Don't try introducer with invalid address
• Select newest introducers to publish
• Don't request relay tag for every session if we have enough introducers
• Update timestamp for non-reachable or hidden router
• Reset streaming routing path if duplicated SYN received
• Update LeaseSet if inbound tunnel failed
• Reseeds list

Fixed

• Crash when a destination gets terminated
• Expired offline signature upon destination creation
• Race condition between local RouterInfo buffer creation and sending it through the transports

[2.52.0] - 2024-05-12

Added

• Separate threads for persisting RouterInfos and profiles to disk
• Give preference to address with direct connection
• Exclude addresses with incorrect static or intro key
• Avoid two firewalled routers in the row in tunnel
• Drop unsolicited database search replies

Changed

• Increase number of hashes to 16 in exploratory lookup reply
• Reduce number of a RouterInfo lookup attempts to 5
• Reset stream RTO if outbound tunnel was changed
• Insert previously excluded floodfill back when successfully connected
• Increase maximum stream resend attempts to 9
• Reply to exploratory lookups with only confirmed routers if low tunnel build rate
• Don't accept too old RouterInfo
• Build client tunnels through confirmed routers only if low tunnel build rate
• Manage netDb requests more frequently
• Don't reply with closer than us only floodfills for lookup

Fixed

• Crash on router lookup if exploratory pool is not ready
• Race condition in excluded peers for next lookup
• Excessive number of lookups for same destination
• Race condition with transport peers during shutdown
• Corrupted RouterInfo files

I run different services on my debian server and I would like to know if there any terminal command or something to show the countries and number connections that have established contact