[Flutter] Why there is no DateTime.now() after update flutter SDK to 3.24.1

Why did they remove the DateTime.now()? It seems like we can not easily get current date and time in the local/utc time zone from different function. I did not find any release note or blog about it.

In dart 3.5.1' s doc there is still DateTime.now()

What happened to me: My code use DateTime.now() before and works well. After I upgrade SDK, there is an error "The method 'now' isn't defined for the type 'DateTime'. Try correcting the name to the name of an existing method, or defining a method named 'now'." And I click into DateTime (Users>me>fvm>versions>3.24.1>bin>cache>pkg>sky_engine>lib>core>date_time.dart), I found the code changed. I cleared the cache and flutter doctor does not show error. If I switch to 3.22.2, the now() is back, and if I switch to 3.24.1, it will disappear.

fvm flutter doctor -v [✓] Flutter (Channel stable, 3.24.1, on macOS 14.5 23F79 darwin-x64, locale zh-Hans-CN) • Flutter version 3.24.1 on channel stable at /Users/me/fvm/versions/3.24.1 • Upstream repository https://github.com/flutter/flutter.git • Framework revision 5874a72aa4 (3 weeks ago), 2024-08-20 16:46:00 -0500 • Engine revision c9b9d5780d • Dart version 3.5.1 • DevTools version 2.37.2

core/date_time.dart:

Before(3.22.2 dart 3.4.3)

/// Constructs a [DateTime] instance with current date and time in the
/// local time zone.
///
/// ```dart
/// final now = DateTime.now();
/// ```
DateTime.now() : this._now();

/// Constructs a [DateTime] with the current UTC date and time.
///
///
/// ```dart
/// final mark = DateTime.timestamp();
/// ```
@Since("3.0")
DateTime.timestamp() : this._nowUtc();


After(3.24.1 dart 3.5.1)

/// Constructs a [DateTime] instance with current date and time in the
/// local time zone.
///
/// ```dart
/// final now = DateTime.timestamp();
/// ```
DateTime.timestamp() : this._now();

/// Constructs a [DateTime] with the current UTC date and time.
///
///
/// ```dart
/// final mark = DateTime.timestamp();
/// ```
@Since("3.0")
DateTime.timestamp() : this._nowUtc();

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