API changes and other small changes to the standard library go here....

### Minor changes to the library {#minor_library_changes}...

now unbuffered, with capacity 0.
The main effect of this change is that Go now guarantees
that for any call to a `Reset` or `Stop` method, no stale values
prepared before that call will be sent or received after the call.
Earlier versions of Go used channels with a one-element buffer,
making it difficult to use `Reset` and `Stop` correctly.
A visible effect of this change is that `len` and `cap` of timer channels

### Go 1.23

Go 1.23 changed the channels created by package time to be unbuffered
(synchronous), which makes correct use of the [`Timer.Stop`](/pkg/time/#Timer.Stop)
and [`Timer.Reset`](/pkg/time/#Timer.Reset) method results much easier.
The [`asynctimerchan` setting](/pkg/time/#NewTimer) disables this change.
There are no runtime metrics for this change,

## Changes to the language {#language}...

1. What version of Go are you using (`go version`)?
2. What operating system and processor architecture are you using?
3. What did you do?
4. What did you expect to see?
5. What did you see instead?

For change proposals, see [Proposing Changes To Go](https://go.dev/s/proposal-process).

## Contributing code

Please read the [Contribution Guidelines](https://golang.org/doc/contribute.html) before sending patches.

API changes and other small changes to the standard library go here....

### Minor changes to the library {#minor_library_changes}...

## Changes to the language {#language}...

pkg syscall (netbsd-arm64-cgo), const RTM_ADD = 1
pkg syscall (netbsd-arm64-cgo), const RTM_ADD ideal-int
pkg syscall (netbsd-arm64-cgo), const RTM_CHANGE = 3
pkg syscall (netbsd-arm64-cgo), const RTM_CHANGE ideal-int
pkg syscall (netbsd-arm64-cgo), const RTM_CHGADDR = 21
pkg syscall (netbsd-arm64-cgo), const RTM_CHGADDR ideal-int
pkg syscall (netbsd-arm64-cgo), const RTM_DELADDR = 13