New APIs

• Added swoole_error_log function (67d2bff) (@matyhtf)
• Supported SSL for readVector and writeVector (#3857) (@huanghantao)

Enhancement

• Did not wait when the child process does not exist (#3832) (@matyhtf)
• Supported DTLS 16k record (#3849) (@matyhtf)
• Supported priority for cookie (#3854) (@matyhtf)
• Supported more CURL options (swoole/library#71) (@sy-records)
• Handled CURL header names in case insensitive manner (swoole/library#76) (@filakhtov) (@twose) (@sy-records)

Fixed

• Fixed readv_all and writev_all when trigger EAGAIN errno (#3830) (@huanghantao)
• Fixed warning for PHP8 (03f3fb0) (@matyhtf)
• Fixed binary security of swoole table keys (#3842) (@twose)
• Fixed System::writeFile append file issue when using FILE_APPEND (a71956d) (@matyhtf)
• Fixed CURLOPT_WRITEFUNCTION (swoole/library#74) (swoole/library#75) (@sy-records)
• Fixed memory overread when parse form-data boundary (#3858) (@twose)
• Fixed is_callable() can not access internal private callable on PHP8 (#3859) (@twose)

Kernel

• Refactored memory allocation function, replace macro with SwooleG.std_allocator (#3853) (@matyhtf)
• Refactored pipe (#3841) (@matyhtf)