New upstream version 1.52.0~beta.3+dfsg1

[rustc.git] / src / doc / rustc-dev-guide / src / opaque-types-type-alias-impl-trait.md

diff --git a/src/doc/rustc-dev-guide/src/opaque-types-type-alias-impl-trait.md b/src/doc/rustc-dev-guide/src/opaque-types-type-alias-impl-trait.md
index e78d3c75dec80844ac5cdbb7c6aa2cc9b5dc9854..2be072dd2c55c9fcbb561cc49d56cbc7b84a9252 100644 (file)
--- a/src/doc/rustc-dev-guide/src/opaque-types-type-alias-impl-trait.md
+++ b/src/doc/rustc-dev-guide/src/opaque-types-type-alias-impl-trait.md
@@ -14,8 +14,9 @@ This declares an opaque type named `Foo`, of which the only information is that
 it implements `Bar`. Therefore, any of `Bar`'s interface can be used on a `Foo`,
 but nothing else (regardless of whether it implements any other traits).
 
-Since there needs to be a concrete background type, you can currently
-express that type by using the opaque type in a "defining use site".
+Since there needs to be a concrete background type, you can (as of <!-- date:
+2021-01 --> January 2021) express that type by using the opaque type in a
+"defining use site".
 
 ```rust,ignore
 struct Struct;