### 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,

                    """
                )
            }
        ) {
            assertHasErrors(
                "Method com.example.Task.getSourceCompatibility(): Is not binary compatible." to listOf("Method return type has changed", "Method is now abstract"),
                removed("Method", "Task.setSourceCompatibility(java.lang.String)"),
            )
        }
    }

    @Test

Note: `Full` only refers to whether a `PushContext` recomputation is needed. Even within a `Full` push, we keep track of which configuration updates triggered this, so we could have "Full update of Config X" or "Full update of all configs".

    var flushHeaders = flushHeaders
    this.withLock {
      this.hasResponseHeaders = true
      if (outFinished) {
        this.sink.finished = true
        condition.signalAll() // Because doReadTimeout() may have changed.
      }
    }

    // Only DATA frames are subject to flow-control. Transmit the HEADER frame if the connection
    // flow-control window is fully depleted.
    if (!flushHeaders) {
      this.withLock {

We took too long to cut this release and there's a lot of changes in it. We've been busy.

Although this release is labeled _alpha_, the only unstable thing in it is our new APIs. This
release has many critical bug fixes and is safe to run in production. We're eager to stabilize our
new APIs so we can get out of alpha.

 *  New: Support Java 21's virtual threads (‘OpenJDK Project Loom’). We changed OkHttp's internals

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