• feature: Add support for udp multicast;
• bugfix: Fixed one dead loop bugin mqtt_connect.cpp;
• workaroud: Add prefix on avl API to avoid API conlision;
• optimize: Optimize acl_htable module;
• feature: Add some supports for c++11/c++17;
• feature: Add proc_pidpath() on MacOS.

• bugfix: fixed some bugs in mqtt module;
• bugfix: redis_client_pipeline shouldn't use stack objects in sharing stack mode;
• performance: optimize redis_builder's performance for removing redis objectsx;
• feature: fiber_sem using async mode;
• feature: add fiber_tbox2 for transfering objects such add shared_ptr;
• feature: sendmmsg/recvmmsg were hooked in fiber IO module;
• feature: service templates in the mode of fiber or thread can bind wildcad addresses.

• bugfix: fixed one bug in fiber_mutex module where some resouce collision maybe happen.

• optimize: optimize fiber's performance by reducing the number of calling getting time;
• optimize: optimize fiber's performance by using clock_gettimeofday replacing gettimeofday;
• optimize: reduce objects' size of HTTP module by using COW(copy on write).

• feature: SSL module in acl including Openssl and MbedTLS supports multiple certificates in server side.
• feature: support MbedTLS 3.3.0 version.
• optimize: optimize memory usage.

• feature: add fiber's stack backtrace
• feature: add fiber mutex dead lock checking
• feature: hook fcntl API on Linux for Rust user

• optimize: use AVL to handle the global timer to improve the timer's performance
• optimize: fiber_cond use the global timer module
• optimize: optimize fiber_mutex
• optimize: implement a new sendfile for io-uring
• test: add unit_test module for fiber module

• feature: fiber module has supported the new IO event io_uring;
• feature: design a new fiber_mutex in fiber to support syncing between coroutines and threads;
• optimize: optimize fiber_cond with the fiber_mutex;
• optimize: fiber_tbox has been optimized with fiber_mutex;
• optimize: master_fiber service template supports io_uring;
• optimize: optimize redis_client_pipeline module with the message box can be rewrite by subclass;
• bugs fixed: fixed one bug in redis_client_pipeline that the mbox shared between different threads.

• 3.5.3-22
• bugfix: when using SO_REUSEPORT, acl_threads_server.cpp should support binding unix domain socket.
• 3.5.3-21
• feature: Openssl has been supported in acl ssl module
• workaroud: when IO timeout be set 0, which will not block the IO process, but the time before, 0 mean the blocking the IO process.
• workaroud: in aio module, it's the default that the connection will be closed after the data in sending buffer been sent.
• 3.5.3-20
• bugfix: don't use max timeout when the timeout is -1 in poll.c
• 3.5.3-19
• bugfix: fixed bugs in fiber_server.cpp when using shared stack mode in sighup fiber.
• 3.5.3-18
• feature: optimize master service template.
• 3.5.3-17
• feature: the fiber service template supports SO_REUSEPORT option.
• 3.5.3-16
• just release rpm package for CentOS8.x .

• fixed bugs in app/redis_tools/redis_builder

• fixed one dead lock in event timer module in event_timer.cpp

• One fiber can close the other's fd safely;
• Use AVL tree to handle IO timeout process;
• IOCP engine was optimized;
• Apple m1 has been supported;
• Shared stack has been supported to decrease memory usage;
• Redis client and master_fiber can be used in fiber shared stack.

Alpine Linux has been supported.

• fixed one bug in acl_udp_server.c(3.5.3-2)
• fixed one crashed bug in acl_inet_connect.c

• bugfix: don't call getaddrinfo when binding a numric IP addr
• feature: add udp_monitor_netlink configure in acl_udp_server.c
• bugfix: optimize and fix bugs in iocp event in fiber module
• bugfix: optimize and fix bugs in windows GUI message in fiber module
• feature: DNS module in fiber module can work on windows
• feature: add API hook for windows platform by adding detrours module from MS open source
• more: more features and bugs fixed

-feature: mqtt module has been proved ok
-optimize dns module for supporting IPV6, etc
-fixed some bugs

1. dns module(including rfc1035) has been rewriten;
2. use the new dns module other the old one in lib_fiber;
3. redis module has supported pipeline mode with hight performance.

fixed one bug in events_timer.c, events_timer_thr.c

1. make event timer more safety when user can cancel another timer in one timer;
2. fp->read_ready should be set 0 in acl_file_read;
3. use MD compiling options for all vc projects;
4. v3.5.1-6: zlib upgrade to 1.2.11 from 1.2.8;
5. v3.5.1-6: There's a better way to check if the given fd is socket, pipe or fifo;
6. v3.5.1-6: ssl module supports SNI;
7. more feature added and some bugs fixed.

简化了 acl::sslbase_conf 及其子类中的 open() 方法，去掉了第一个参数。