v0.4.69

• Improvements and refactoring to I/O APIs.
  • Fixed System.IO.TerminalReader to use a read buffer size of 4096 rather than the system page size since the size has visible effects for users.
  • Added TerminalIn and TerminalOut properties to System.VirtualTerminal, enabling direct access to the terminal even when the standard I/O handles are redirected.
  • Renamed StdIn, StdOut, and StdErr properties on System.VirtualTerminal to StandardIn, StandardOut, and StandardError respectively.
  • Renamed IsRedirected property on System.IO.TerminalReader and System.IO.TerminalWriter to IsInteractive and inverted its meaning.
  • Added IsValid property on System.IO.TerminalHandle.
  • Added System.SystemVirtualTerminal.SizePollingInterval property to control resize polling interval (defaults to TimeSpan.FromMilliseconds(100)).
  • Added Reader property on System.IO.TerminalReader and Writer property on System.IO.TerminalWriter; these provide convenient TextReader/TextWriter wrappers.
  • Added System.SystemVirtualTerminal.DangerousRestoreSettings method.
  • Removed System.Terminal.System static property in favor of System.SystemVirtualTerminal.Instance.
  • Renamed some events to follow .NET naming conventions for events.
• Improvements to control sequence construction.
  • Added many more control sequences to System.Text.Control.ControlBuilder, System.Text.Control.ControlSequences, and System.Text.Control.ControlConstants.
  • Changed SetTitle to take ReadOnlySpan<char> instead of string.
  • Added a reallocateThreshold parameter to System.Text.Control.ControlBuilder.Clear() (defaults to 4096).
• Various platform-specific driver improvements.
  • Fixed regression in SIGCONT handling causing terminal settings to be incorrectly overwritten by System.Native.
  • Fixed Windows console input misbehaving in some cases when Ctrl-C was pressed.
  • Fixed IsRawMode being set incorrectly when changing the mode threw an exception.
  • More thoroughly set Unix termios state and Windows console modes.
    • All known bits and modes are now set to sensible values as needed.
    • Explicitly switch to cooked mode on initialization rather than trusting the shell.
  • Use the same output lock for standard output and standard error.
  • Use the new direct terminal access properties when changing terminal settings.
  • Improved P/Invoke-related exception messages throughout driver code.
  • Make drivers behave properly when any I/O handles are invalid.
• Added a new System.Diagnostics.TerminalProcess API.
  • This API wraps System.Diagnostics.Process and bans the use of it.
  • This new API handles terminal settings for non-redirected child processes correctly.
  • Non-redirected child processes can only be created in cooked mode.
  • Processes can be created easily with the new System.Diagnostics.TerminalProcessBuilder class.
• Added a new System.Terminal.Hosting package.
  • Provides APIs that help ensure that terminal settings are correctly restored when your program exits.
  • You implement the new System.Hosting.IProgram interface rather than writing a classic Main entry point.
  • Backed by a source generator that generates the real Main entry point for you.
• System.Terminal packages now add Using items based on the ImplicitUsings MSBuild property.
• Removed TermInfo NuGet dependency as it is not currently used.