The new type [KeepAliveConfig] permits fine-tuning the keep-alive
options for TCP connections, via a new [TCPConn.SetKeepAliveConfig]

pkg mime/quotedprintable, type Reader struct
pkg mime/quotedprintable, type Writer struct
pkg mime/quotedprintable, type Writer struct, Binary bool
pkg net, type Dialer struct, FallbackDelay time.Duration
pkg net, type OpError struct, Source Addr
pkg net/http, type Request struct, Cancel <-chan struct
pkg net/http/fcgi, var ErrConnClosed error
pkg net/http/fcgi, var ErrRequestAborted error

pkg crypto/tls, const CurveP384 = 24
pkg crypto/tls, const CurveP384 CurveID
pkg crypto/tls, const CurveP521 = 25
pkg crypto/tls, const CurveP521 CurveID
pkg crypto/tls, func DialWithDialer(*net.Dialer, string, string, *Config) (*Conn, error)
pkg crypto/tls, func NewLRUClientSessionCache(int) ClientSessionCache
pkg crypto/tls, type ClientSessionCache interface { Get, Put }

pkg syscall (netbsd-arm64-cgo), const ICANON = 256
pkg syscall (netbsd-arm64-cgo), const ICANON ideal-int
pkg syscall (netbsd-arm64-cgo), const ICMP6_FILTER = 18
pkg syscall (netbsd-arm64-cgo), const ICMP6_FILTER ideal-int
pkg syscall (netbsd-arm64-cgo), const ICRNL = 256
pkg syscall (netbsd-arm64-cgo), const ICRNL ideal-int
pkg syscall (netbsd-arm64-cgo), const IEXTEN = 1024

pkg net, method (*TCPConn) SetKeepAliveConfig(KeepAliveConfig) error #62254
pkg net, type Dialer struct, KeepAliveConfig KeepAliveConfig #62254
pkg net, type KeepAliveConfig struct #62254
pkg net, type KeepAliveConfig struct, Count int #62254
pkg net, type KeepAliveConfig struct, Enable bool #62254
pkg net, type KeepAliveConfig struct, Idle time.Duration #62254
pkg net, type KeepAliveConfig struct, Interval time.Duration #62254

pkg net, method (*Resolver) LookupTXT(context.Context, string) ([]string, error)
pkg net, method (*UnixListener) SetUnlinkOnClose(bool)
pkg net, type Buffers [][]uint8
pkg net, type Dialer struct, Resolver *Resolver
pkg net, type Resolver struct
pkg net, type Resolver struct, PreferGo bool
pkg net/url, func PathEscape(string) string
pkg net/url, func PathUnescape(string) (string, error)

Go 1.21 adds the support of Multipath TCP but it is only used if the application
explicitly asked for it. This behavior can be controlled by the
[`multipathtcp` setting](/pkg/net#Dialer.SetMultipathTCP).

There is no plan to remove any of these settings.

### Go 1.20

Go 1.20 introduced support for rejecting insecure paths in tar and zip archives,

pkg syscall (freebsd-riscv64), const IP_MAX_SOCK_SRC_FILTER = 128 #53466
pkg syscall (freebsd-riscv64), const IP_MAX_SOCK_SRC_FILTER ideal-int #53466
pkg syscall (freebsd-riscv64), const IP_MAX_SOURCE_FILTER = 1024 #53466
pkg syscall (freebsd-riscv64), const IP_MAX_SOURCE_FILTER ideal-int #53466
pkg syscall (freebsd-riscv64), const IP_MF = 8192 #53466
pkg syscall (freebsd-riscv64), const IP_MF ideal-int #53466

pkg syscall (darwin-arm64), const IPV6_MAX_GROUP_SRC_FILTER = 512
pkg syscall (darwin-arm64), const IPV6_MAX_GROUP_SRC_FILTER ideal-int
pkg syscall (darwin-arm64), const IPV6_MAX_MEMBERSHIPS = 4095
pkg syscall (darwin-arm64), const IPV6_MAX_MEMBERSHIPS ideal-int
pkg syscall (darwin-arm64), const IPV6_MAX_SOCK_SRC_FILTER = 128
pkg syscall (darwin-arm64), const IPV6_MAX_SOCK_SRC_FILTER ideal-int

pkg syscall (freebsd-arm64), const IP_MAX_GROUP_SRC_FILTER = 512
pkg syscall (freebsd-arm64), const IP_MAX_GROUP_SRC_FILTER ideal-int
pkg syscall (freebsd-arm64), const IP_MAX_MEMBERSHIPS = 4095
pkg syscall (freebsd-arm64), const IP_MAX_MEMBERSHIPS ideal-int
pkg syscall (freebsd-arm64), const IP_MAX_SOCK_MUTE_FILTER = 128
pkg syscall (freebsd-arm64), const IP_MAX_SOCK_MUTE_FILTER ideal-int