2.0.0rc2

• dht: fixed long-standing memory leak affecting permanent put operations
• dht: the above fix also results in significant performance improvements for permanent put operations
• securedht: putSigned and putEncrypted now fail immediately if no key is configured
• tools: added perftest for simple single-process benchmarking
• tools: added durl to test the http client stack

2.0.0rc1

• dht/net: now using exponential backoff and randomized timing for packet re-transmission.

  • previous implementation was transmitting max. 3 times at 1 second intervals (final timeout after 3 seconds).
  • new implementation retransmits max. 3 times after 1, 2 and 4 seconds, plus some random time for each request (final timeout after 7 to 9 seconds)
  • Some DHT operations might be sightly slower to complete, however the current design mitigates this effect, and for most workloads, this change should generally mean better network resilience for a minor operation completion delay increase and almost no increase in value transmission time

• dht: significant performance improvements

• dht: reduced memory usage

• dht: added "stable, public" node configuration, for long-running nodes with a public IP address. In this mode:

  • listen refresh time is increased to 5 min from 30 seconds (which is usually required for potentially NATed nodes to maintain routes)
  • disabled automatic DHT connectivity change detection, which not relevant for this use-case

  This new mode can be enabled by setting the new configuration field dht::Config::public_stable to true,
  or with dhtnode with the new argument flag -P or --public-stable

• proxy: performance improvements, various fixes

• dhtnode: better display of durations and plaintext values

2.0.0beta3

• dht: allow to configure or disable rate limiting
• dht: added value priority, used for push notification priority
• dht: shutdown() now waits for pending get/put operations to complete before calling the user callback
• tests: updated unit tests and dockerfiles
• autotools: fix make dist and many make distcheck issues
• peer discovery: revamped, now makes use of asio, performance improvements
• proxy: many client/server bug fixes and performance improvements
• cmake/autotools: allow to build without peer discovery
• dht: minor performance improvements

2.0.0beta2

Since 2.0.0beta1:

• dhtrunner: added cancelPut with value argument instead of id
• dhtrunner: added permanent argument for putSigned and putEncrypted
• c: improved wrapper
• rust: improved wrapper
• proxy/http: fix crash when cancelling a request before it's sent
• proxy: updated restinio dependency
• proxy client: various bug fixes and cleanups
• crypto: improved AES encryption/decryption performance

2.0.0beta1

• added C bindings
• added Rust bindings
• improved Python bindings
• dht proxy: dependency change: now using Restinio instead of Restbed
• dht proxy: added simple HTTP/HTTPS client library using ASIO, Restinio and http_parser
• dht proxy: cleanup

1.10.1

• dhtrunner: add method bootstrap("host:service")
• cleanup

1.10.0

dhtrunner: run shutdown on op queue

1.10.0rc4

• API breaking change: thread pool: getShared returns shared_future instead of shared_ptr<future>
• dhtrunner: threaded mode is now the default
• dhtrunner: avoid starting peer discovery for unused address families
• dhtrunner: fix data race when using push notifications
• net/udp: when port to use is not provided, attempt to use the same port for IPv4 and IPv6
• minor performance improvements
• minor memory use reduction

1.10.0rc1

• Added support for pluggable network transport
  • To use custom transport, extend the class dht::net::DatagramSocket. The default implementation is dht::net::UdpSocket.
  • Give your instance to dht::DhtRunner::run as part of the context (field dht::DhtRunner::Context::sock).
• Peer discovery: use organization-local multicast scope for Windows compatibility.
• tools/dhtnode: allow to specify certificate and private key files to use for the node identity (with --certificate, --privkey and --privkey-password).
• tools/dhtnode: allow to save the node identity generated with -i to file with --save-identity.
• tools/dhtnode: improve manpage

1.9.5

• dhtrunner: add new run() method with Context argument allowing to pass custom logger or peer discovery instance on node startup
• peer discovery: fix various issues