Enhancement

• Dynamically ipc_size, greatly improving IPC performance in Process mode (48c1b2b) (3e85511) (@matyhtf)
• Improve Runtime::enableCoroutine API, support passing in flag directly as the first parameter (464ad65) (7d4be65) (@twose)
• SSL connection will automatically configure the ssl_host_name (563e677) (@twose)
• Some NOTICE level information will be changed to INFO level, such as server restart information, etc (d87d63a) (@twose)
• Add constants fordispatch_func return value: SWOOLE_DISPATCH_RESULT_DISCARD_PACKET, SWOOLE_DISPATCH_RESULT_USERFUNC_FALLBACK (#2451) (@windrunner414)
• swoole_strerror support parse system error code and swoole error code automatically (d89c565) (#2458) (@twose) (@mabu233)
• Built-in Socket related constants, and it would not conflict with Socket extensions (1e1b1d1) (@twose)

Fixed

• Fixed CID-1478883, CID-1478887, CID-1478891, CID-1478894 (688713f) (17805af) (e8f1473) (58a098f) (@matyhtf)
• Fixed invalid memory access due to fd reuse (08b37fd) (@twose)
• Fixed connection reset due to fd reuse (#2444) (@twose)
• Fixed the bug where the GC didn't work during the shutdown (causing a memory leak) (836ea23) (15ba9f7) (@twose)
• Fixed the invalidation of Co\Iterator (db9e155) (@twose)
• FixedCo::exec causes process stuck (8a1d776) (22252d7) (@matyhtf)
• Fixed BADF caused by exportSocket (ebbce67) (c7af14c) (c717122) (@matyhtf)
• Complete Swoole\Buffer property declaration (2f66319) (@twose)
• Complete Co::exec arg info (7da1376) (@twose)
• Fixed the wrong error code when the MySQL client host was invalid (#2367) (@twose)
• Fixed the problem that the sync client is interrupted by the signal (#2448) (@liues1992)
• Fixed build check with i?86/aarch64 (#2460) (@dixyes)
• Fixed poll with timeout 0 (1143743) (@matyhtf)
• Fixed stream_select with null timeout (e8a58d5) (c166b7a) (@twose)
• Fixed stream_select behavior (d8e7a41) (3ce877d) (2819232) (cd8e4c7) (@twose) (@matyhtf)
• Generate Swoole Warning instead of PHP Warning (unmanageable error) (955d021) (@twose)
• Fixed Co\Client construct failed (#2466) (@twose)
• Fixed Http2 cookie (e18d66b) (@twose)
• Fixed Process->getProcess free (fe1ca17) (@matyhtf)
• Fixed Coroutine flock (23401d8) (86cf0c9) (@matyhtf)
• Fixed Co\Http2\Client null ptr (66c31ee) (@twose)
• Fixed Socket->accept return Socket object with uninitialised type (5d26b00) (@twose)
• Fixed Co\Http\Client with websocket protocol can not support full duplex (#2477) (523c588) (@twose)
• Complete Event::dispatch, Event::isSet method arg info (#2491) (@deminy)
• Fixed invalid Connection\Iterator (#2492) (@matyhtf)