Update note about `__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__`.

This is available to apps now, but the rest of the caveat remains true.

PiperOrigin-RevId: 606346460
Change-Id: I2e7e56695d3f3827d03e07491ae610d7970b3354
diff --git a/api-guidelines/ndk.md b/api-guidelines/ndk.md
index 010e353..4c46609 100644
--- a/api-guidelines/ndk.md
+++ b/api-guidelines/ndk.md
@@ -577,12 +577,12 @@
 
 **Inline code cannot use `__builtin_available`.** Using `__builtin_available`
 instead of `dlopen`/`dlsym` only works if
-`__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__` is set. At the time of writing, that
-configuration is not supported for apps. There are no plans to ever remove the
-current behavior, nor to make `__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__` the
-default, as there are tradeoffs involved that must be made by the app developer.
-As such, inline code must always work in both configurations, and the only way
-to do that is with `dlopen`/`dlsym`.
+`__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__` is set. There are no plans to ever
+remove the current behavior, nor to make
+`__ANDROID_UNAVAILABLE_SYMBOLS_ARE_WEAK__` the default, as there are tradeoffs
+involved that must be made by the app developer. As such, inline code must
+always work in both configurations, and the only way to do that is with
+`dlopen`/`dlsym`.
 
 ## Error Handling <a name="error-handling"></a>