New Features

• HttpChunkedClient supports 'extract' when HTTP header completed.
• Support customizing communicator's event handler to support fibers.

Improvements

• Optimize JSON parser speed when parsing numbers and strings.
• Optimize locking speed when a domain name has multiple IP addresses.
• Reduce compiler warnings.

Bug Fixes

• Fix crash bug on macOS when DNS cache expired.

New Features

• Add WFHttpChunkedClient to support fetching HTTP body chunk by chunk.

Improvements

• Support setting specific SSL_CTX for WFConsulClient.
• Optimize JSON parsing and copying speed.

Bug Fix

• Fix SSL bug when creating communication targets.

New Features

• Add 'prepare()' function for server task too.

Improvements

• Enable setting connection context only without changing context deleter.
• Decrease max io events when io_setup() failed.
• Optimize WFDnsServer to simplify users implementing a DNS server.

Bug Fixes

• Fix kafka client bug that fails to update metadata when leader changed.
• Fix kafka client bug that fetches same data multiple times.
• Fix bug that network task state is WFT_STATE_SYS_ERROR when DNS failed.
• Fix compatibility with OpenSSL 1.0.

New Features

• Supporting sending/signaling different messages to each named mailbox/conditional.
• Supporting permanant timer, for canceling only.

Improvments

• SSL server uses cerficate chain file. Check private key.
• Simplify communicator service session's state.
• Optimize StringUtil::enode()/decode().

Bug Fixes

• Bug that UDP server doesn't reply.
• Potensial memleak when malloc failed.
• Consul client JSON stringifying error.
• Compiling error when user defined protocol message doesn't have a move constructor.

New Feature

• Add WFRedisSubscriber to support redis subscribing.

Improvements

• Communicator::push() supports client session.
• WFTaskFactory::XXX_by_name() functions return tasks that waked up.
• Redis client task returns task error when missing password.

Bug Fixes

• Fix 'sendto()' failure on a connected UDP socket.
• Communicator::push() bug with multiple message wrappers.

New Features

• Enable increasing and decreasing computing threads.
• Support HTTP authentication.
• Support preadv/pwritev file IO task on macOS.
• Graph task supports canceling node's successors.

Improvements

• Decreasing handler threads dynamicly when using wait group or WFFuture.
• Enable CommSession::push() on an active session.

Bug Fixes

• Fix SSL_write error bug when sending large message.
• Fix push() bug when having message wrappers.
• Fix feedback() error of UDP client message.

New Features

• Add WFSelectorTask.
• Support setting DNS message's records. Enable users to make a fully functional DNS server by using WFDnsServer.
• Enable setting specific SSL_CTX for each network task.
• WFMySQLConnection and WFKafkaClient enable setting a specific SSL_CTX.
• JSON parser adds 'json_value_copy()'.

Improvements

• More compatible with some rediculous HTTP server.
• Simplify Communicator's codes.

Bug Fixes

• Fix bug when creating a client task with IPv6 address string.
• Fix kafka client bug when a broker is IPv6.
• Fix DNS parser potensial recursive bug.

New Features

• Support UDP server.
• Enable erasing http message's header.

Improvements

• Optimize JSON parsing.
• Support specifying server's transport layer protocol (TCP, UDP, SCTP).
• Reduce default DNS cache ttl.
• Kafka client supports set_offset_timestamp for KafkaToppar in automatic mode.

Bug Fixes

• Fix dead lock bug when upstream referring to a host name.
• Fix some kafka client little problems.

New Features

• Add watch_timeout for network task.
• Add address_family for endpoint params. Enable users to specify target's IP address family, including DNS server.
• Add 'guard' task wrapper for global non-block locking.
• Reduce max encoding IO vectors from 8192 to 2048 and reduce 96KB stack using.

Improvements

• Optimize named timer's speed. About 3 times faster.
• Reduce light-weighted thread task's overhead.
• Optimize DNS resolving a lot. Reduce redundant DNS requests when querying a single host name parallelly.
• Optimize JSON parser when parsing JSON numbers.
• Simpify poller code and optimize timeout checking.

Bug Fixes

• Fix kafka client bug when enable retry.

New Features

• Add cancelable timer. You may name a timer and cancel by name.
• Add named mailbox task. You can send message to a mailbox task by it's name.
• Add WFFacilities::ReplyGuard as an alternive way to implement asynchronous server.
• Support kafka client over TLS.
• Support redis username for redis server 6.0.

Impovements

• Refactor named task's implementation to make it faster.
• Avoid stack overflow when running out of file discriptors.
• Optimize JSON parser by parsing JSON number manually. About 3 times faster than 'strtod()'.

Bug Fixes:

• Fix WFMySQLConnection crash bug when running multiple tasks concorrently.
• Fix kafka authentication bug by encoding for kafka SASL username and password.
• Fix kafka client bug that does not retry.
• Fix bug of 'WFTaskFactory::signal_by_name()' with 'max'.

Incompatible changes

• Timed thread/go task's state in callback was changed to WFT_STATE_SYS_ERROR with error ETIMEDOUT when timeout. The original state was WFT_STATE_ABORTED. Please check timeout by using 'if (task->get_state() != WFT_STATE_SUCCESS)', which is compatible with both behaviors.
• Remove WFMultiThreadTask.