diff --git a/src/core/fut.mli b/src/core/fut.mli
index 073e393f..68c369f4 100644
--- a/src/core/fut.mli
+++ b/src/core/fut.mli
@@ -54,11 +54,11 @@ exception Already_fulfilled
 val try_cancel : _ promise -> Exn_bt.t -> bool
 (** [try_cancel promise ebt] tries to cancel the promise, returning [true]. It
     returns [false] if the promise is already resolved.
-    @since NEXT_RELEASE *)
+    @since 0.9 *)
 
 val cancel : _ promise -> Exn_bt.t -> unit
 (** Silent version of {!try_cancel}, ignoring the result.
-    @since NEXT_RELEASE *)
+    @since 0.9 *)
 
 val fulfill : 'a promise -> 'a or_error -> unit
 (** Fullfill the promise, setting the future at the same time.
diff --git a/src/core/moonpool.mli b/src/core/moonpool.mli
index 0e80fa2f..b848a077 100644
--- a/src/core/moonpool.mli
+++ b/src/core/moonpool.mli
@@ -80,7 +80,7 @@ val await : 'a Fut.t -> 'a
 val yield : unit -> unit
 (** Yield from the current task, must be run on a moonpool runner. Only on OCaml
     >= 5.0.
-    @since NEXT_RELEASE *)
+    @since 0.9 *)
 
 module Lock = Lock
 module Fut = Fut