diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs
index 7e5197f16f91e..1fcfbe658d71b 100644
--- a/compiler/rustc_feature/src/accepted.rs
+++ b/compiler/rustc_feature/src/accepted.rs
@@ -203,6 +203,8 @@ declare_features! (
     (accepted, impl_header_lifetime_elision, "1.31.0", Some(15872)),
     /// Allows referencing `Self` and projections in impl-trait.
     (accepted, impl_trait_projections, "1.74.0", Some(103532)),
+    /// Allows using imported `main` function
+    (accepted, imported_main, "CURRENT_RUSTC_VERSION", Some(28937)),
     /// Allows using `a..=b` and `..=b` as inclusive range syntaxes.
     (accepted, inclusive_range_syntax, "1.26.0", Some(28237)),
     /// Allows inferring outlives requirements (RFC 2093).
diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs
index c3f216936df74..7b6dc7740ab42 100644
--- a/compiler/rustc_feature/src/unstable.rs
+++ b/compiler/rustc_feature/src/unstable.rs
@@ -495,8 +495,6 @@ declare_features! (
     (unstable, impl_trait_in_assoc_type, "1.70.0", Some(63063)),
     /// Allows `impl Trait` as output type in `Fn` traits in return position of functions.
     (unstable, impl_trait_in_fn_trait_return, "1.64.0", Some(99697)),
-    /// Allows using imported `main` function
-    (unstable, imported_main, "1.53.0", Some(28937)),
     /// Allows associated types in inherent impls.
     (incomplete, inherent_associated_types, "1.52.0", Some(8995)),
     /// Allow anonymous constants from an inline `const` block
diff --git a/compiler/rustc_passes/src/entry.rs b/compiler/rustc_passes/src/entry.rs
index 2af5a54a0cac7..f34e8d96f0587 100644
--- a/compiler/rustc_passes/src/entry.rs
+++ b/compiler/rustc_passes/src/entry.rs
@@ -7,7 +7,6 @@ use rustc_hir::{ItemId, Node, CRATE_HIR_ID};
 use rustc_middle::query::Providers;
 use rustc_middle::ty::TyCtxt;
 use rustc_session::config::{sigpipe, CrateType, EntryFnType};
-use rustc_session::parse::feature_err;
 use rustc_span::symbol::sym;
 use rustc_span::{Span, Symbol};
 
@@ -133,16 +132,6 @@ fn configure_main(tcx: TyCtxt<'_>, visitor: &EntryContext<'_>) -> Option<(DefId,
                 return None;
             }
 
-            if main_def.is_import && !tcx.features().imported_main {
-                let span = main_def.span;
-                feature_err(
-                    &tcx.sess,
-                    sym::imported_main,
-                    span,
-                    "using an imported function as entry point `main` is experimental",
-                )
-                .emit();
-            }
             return Some((def_id, EntryFnType::Main { sigpipe: sigpipe(tcx, def_id) }));
         }
         no_main_err(tcx, visitor);
diff --git a/src/tools/miri/test-cargo-miri/tests/main.rs b/src/tools/miri/test-cargo-miri/tests/main.rs
index bb94c8f37876c..72224e2961947 100644
--- a/src/tools/miri/test-cargo-miri/tests/main.rs
+++ b/src/tools/miri/test-cargo-miri/tests/main.rs
@@ -1,3 +1 @@
-#![feature(imported_main)]
-
 use cargo_miri_test::main;
diff --git a/src/tools/miri/tests/pass/imported_main.rs b/src/tools/miri/tests/pass/imported_main.rs
index 32b39152f7839..eb93cd11d3852 100644
--- a/src/tools/miri/tests/pass/imported_main.rs
+++ b/src/tools/miri/tests/pass/imported_main.rs
@@ -1,5 +1,3 @@
-#![feature(imported_main)]
-
 pub mod foo {
     pub fn mymain() {
         println!("Hello, world!");
diff --git a/src/tools/miri/tests/pass/main_fn.rs b/src/tools/miri/tests/pass/main_fn.rs
index 3b84d1abe6f3d..4cdd034f30eea 100644
--- a/src/tools/miri/tests/pass/main_fn.rs
+++ b/src/tools/miri/tests/pass/main_fn.rs
@@ -1,5 +1,3 @@
-#![feature(imported_main)]
-
 mod foo {
     pub(crate) fn bar() {}
 }
diff --git a/tests/ui/entry-point/imported_main_conflict.rs b/tests/ui/entry-point/imported_main_conflict.rs
index e8c70b06513c2..06178dbeff72d 100644
--- a/tests/ui/entry-point/imported_main_conflict.rs
+++ b/tests/ui/entry-point/imported_main_conflict.rs
@@ -1,5 +1,4 @@
-#![feature(imported_main)]
-//~^ ERROR `main` is ambiguous
+//~ ERROR `main` is ambiguous
 mod m1 { pub(crate) fn main() {} }
 mod m2 { pub(crate) fn main() {} }
 
diff --git a/tests/ui/entry-point/imported_main_conflict.stderr b/tests/ui/entry-point/imported_main_conflict.stderr
index 783e9345acf69..3ef34962524af 100644
--- a/tests/ui/entry-point/imported_main_conflict.stderr
+++ b/tests/ui/entry-point/imported_main_conflict.stderr
@@ -2,13 +2,13 @@ error[E0659]: `main` is ambiguous
    |
    = note: ambiguous because of multiple glob imports of a name in the same module
 note: `main` could refer to the function imported here
-  --> $DIR/imported_main_conflict.rs:6:5
+  --> $DIR/imported_main_conflict.rs:5:5
    |
 LL | use m1::*;
    |     ^^^^^
    = help: consider adding an explicit import of `main` to disambiguate
 note: `main` could also refer to the function imported here
-  --> $DIR/imported_main_conflict.rs:7:5
+  --> $DIR/imported_main_conflict.rs:6:5
    |
 LL | use m2::*;
    |     ^^^^^
diff --git a/tests/ui/entry-point/imported_main_const_fn_item_type_forbidden.rs b/tests/ui/entry-point/imported_main_const_fn_item_type_forbidden.rs
index 405d6e2a9f560..d0be240e07ba6 100644
--- a/tests/ui/entry-point/imported_main_const_fn_item_type_forbidden.rs
+++ b/tests/ui/entry-point/imported_main_const_fn_item_type_forbidden.rs
@@ -1,4 +1,3 @@
-#![feature(imported_main)]
 #![feature(type_alias_impl_trait)]
 #![allow(incomplete_features)]
 pub mod foo {
diff --git a/tests/ui/entry-point/imported_main_const_fn_item_type_forbidden.stderr b/tests/ui/entry-point/imported_main_const_fn_item_type_forbidden.stderr
index 1e7d82a73bc93..50e4cd7d39f79 100644
--- a/tests/ui/entry-point/imported_main_const_fn_item_type_forbidden.stderr
+++ b/tests/ui/entry-point/imported_main_const_fn_item_type_forbidden.stderr
@@ -1,5 +1,5 @@
 error[E0601]: `main` function not found in crate `imported_main_const_fn_item_type_forbidden`
-  --> $DIR/imported_main_const_fn_item_type_forbidden.rs:11:22
+  --> $DIR/imported_main_const_fn_item_type_forbidden.rs:10:22
    |
 LL | use foo::BAR as main;
    |     ---------------- ^ consider adding a `main` function to `$DIR/imported_main_const_fn_item_type_forbidden.rs`
diff --git a/tests/ui/entry-point/imported_main_const_forbidden.rs b/tests/ui/entry-point/imported_main_const_forbidden.rs
index 1508280c0fa57..c478e004603c0 100644
--- a/tests/ui/entry-point/imported_main_const_forbidden.rs
+++ b/tests/ui/entry-point/imported_main_const_forbidden.rs
@@ -1,4 +1,3 @@
-#![feature(imported_main)]
 pub mod foo {
     pub const BAR: usize = 42;
 }
diff --git a/tests/ui/entry-point/imported_main_const_forbidden.stderr b/tests/ui/entry-point/imported_main_const_forbidden.stderr
index 6f34015a2cd57..eb768b1b2506e 100644
--- a/tests/ui/entry-point/imported_main_const_forbidden.stderr
+++ b/tests/ui/entry-point/imported_main_const_forbidden.stderr
@@ -1,5 +1,5 @@
 error[E0601]: `main` function not found in crate `imported_main_const_forbidden`
-  --> $DIR/imported_main_const_forbidden.rs:6:22
+  --> $DIR/imported_main_const_forbidden.rs:5:22
    |
 LL | use foo::BAR as main;
    |     ---------------- ^ consider adding a `main` function to `$DIR/imported_main_const_forbidden.rs`
diff --git a/tests/ui/entry-point/imported_main_from_extern_crate.rs b/tests/ui/entry-point/imported_main_from_extern_crate.rs
index abcf2cbc05bfb..6d1c497052e9f 100644
--- a/tests/ui/entry-point/imported_main_from_extern_crate.rs
+++ b/tests/ui/entry-point/imported_main_from_extern_crate.rs
@@ -1,7 +1,5 @@
 //@ run-pass
 //@ aux-build:main_functions.rs
 
-#![feature(imported_main)]
-
 extern crate main_functions;
 pub use main_functions::boilerplate as main;
diff --git a/tests/ui/entry-point/imported_main_from_extern_crate_wrong_type.rs b/tests/ui/entry-point/imported_main_from_extern_crate_wrong_type.rs
index 82d81a93d9d9a..d8ae12d200f40 100644
--- a/tests/ui/entry-point/imported_main_from_extern_crate_wrong_type.rs
+++ b/tests/ui/entry-point/imported_main_from_extern_crate_wrong_type.rs
@@ -1,6 +1,4 @@
 //@ aux-build:bad_main_functions.rs
 
-#![feature(imported_main)]
-
 extern crate bad_main_functions;
 pub use bad_main_functions::boilerplate as main;
diff --git a/tests/ui/entry-point/imported_main_from_inner_mod.rs b/tests/ui/entry-point/imported_main_from_inner_mod.rs
index 7212dd6182c5b..cede1766118dd 100644
--- a/tests/ui/entry-point/imported_main_from_inner_mod.rs
+++ b/tests/ui/entry-point/imported_main_from_inner_mod.rs
@@ -1,5 +1,4 @@
 //@ run-pass
-#![feature(imported_main)]
 
 pub mod foo {
     pub fn bar() {
diff --git a/tests/ui/feature-gates/feature-gate-imported_main.rs b/tests/ui/feature-gates/feature-gate-imported_main.rs
deleted file mode 100644
index b351d0d0e9a50..0000000000000
--- a/tests/ui/feature-gates/feature-gate-imported_main.rs
+++ /dev/null
@@ -1,6 +0,0 @@
-pub mod foo {
-    pub fn bar() {
-        println!("Hello world!");
-    }
-}
-use foo::bar as main; //~ ERROR using an imported function as entry point
diff --git a/tests/ui/feature-gates/feature-gate-imported_main.stderr b/tests/ui/feature-gates/feature-gate-imported_main.stderr
deleted file mode 100644
index 987bda7059c86..0000000000000
--- a/tests/ui/feature-gates/feature-gate-imported_main.stderr
+++ /dev/null
@@ -1,13 +0,0 @@
-error[E0658]: using an imported function as entry point `main` is experimental
-  --> $DIR/feature-gate-imported_main.rs:6:5
-   |
-LL | use foo::bar as main;
-   |     ^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #28937 <https://github.com/rust-lang/rust/issues/28937> for more information
-   = help: add `#![feature(imported_main)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
-error: aborting due to 1 previous error
-
-For more information about this error, try `rustc --explain E0658`.