diff --git a/compiler/rustc_feature/src/accepted.rs b/compiler/rustc_feature/src/accepted.rs
index de2bd60ffad..943cc632857 100644
--- a/compiler/rustc_feature/src/accepted.rs
+++ b/compiler/rustc_feature/src/accepted.rs
@@ -60,7 +60,7 @@ macro_rules! declare_features {
     /// Allows the definition of associated constants in `trait` or `impl` blocks.
     (accepted, associated_consts, "1.20.0", Some(29646)),
     /// Allows the user of associated type bounds.
-    (accepted, associated_type_bounds, "CURRENT_RUSTC_VERSION", Some(52662)),
+    (accepted, associated_type_bounds, "1.79.0", Some(52662)),
     /// Allows using associated `type`s in `trait`s.
     (accepted, associated_types, "1.0.0", None),
     /// Allows free and inherent `async fn`s, `async` blocks, and `<expr>.await` expressions.
@@ -99,7 +99,7 @@ macro_rules! declare_features {
     /// Allows using the CMPXCHG16B target feature.
     (accepted, cmpxchg16b_target_feature, "1.69.0", Some(44839)),
     /// Allows use of the `#[collapse_debuginfo]` attribute.
-    (accepted, collapse_debuginfo, "CURRENT_RUSTC_VERSION", Some(100758)),
+    (accepted, collapse_debuginfo, "1.79.0", Some(100758)),
     /// Allows usage of the `compile_error!` macro.
     (accepted, compile_error, "1.20.0", Some(40872)),
     /// Allows `impl Trait` in function return types.
@@ -208,13 +208,13 @@ macro_rules! declare_features {
     /// 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)),
+    (accepted, imported_main, "1.79.0", 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).
     (accepted, infer_outlives_requirements, "1.30.0", Some(44493)),
     /// Allow anonymous constants from an inline `const` block
-    (accepted, inline_const, "CURRENT_RUSTC_VERSION", Some(76001)),
+    (accepted, inline_const, "1.79.0", Some(76001)),
     /// Allows irrefutable patterns in `if let` and `while let` statements (RFC 2086).
     (accepted, irrefutable_let_patterns, "1.33.0", Some(44495)),
     /// Allows `#[instruction_set(_)]` attribute.
@@ -360,7 +360,7 @@ macro_rules! declare_features {
     /// Allows macros to appear in the type position.
     (accepted, type_macros, "1.13.0", Some(27245)),
     /// Allows using type privacy lints (`private_interfaces`, `private_bounds`, `unnameable_types`).
-    (accepted, type_privacy_lints, "CURRENT_RUSTC_VERSION", Some(48054)),
+    (accepted, type_privacy_lints, "1.79.0", Some(48054)),
     /// Allows `const _: TYPE = VALUE`.
     (accepted, underscore_const_names, "1.37.0", Some(54912)),
     /// Allows `use path as _;` and `extern crate c as _;`.
diff --git a/compiler/rustc_feature/src/unstable.rs b/compiler/rustc_feature/src/unstable.rs
index 132e2ddee29..e7d7a9f380b 100644
--- a/compiler/rustc_feature/src/unstable.rs
+++ b/compiler/rustc_feature/src/unstable.rs
@@ -216,7 +216,7 @@ pub fn internal(&self, feature: Symbol) -> bool {
     /// Set the maximum pattern complexity allowed (not limited by default).
     (internal, pattern_complexity, "1.78.0", None),
     /// Allows using pattern types.
-    (internal, pattern_types, "CURRENT_RUSTC_VERSION", Some(123646)),
+    (internal, pattern_types, "1.79.0", Some(123646)),
     /// Allows using `#[prelude_import]` on glob `use` items.
     (internal, prelude_import, "1.2.0", None),
     /// Used to identify crates that contain the profiler runtime.
@@ -384,7 +384,7 @@ pub fn internal(&self, feature: Symbol) -> bool {
     /// Allows `cfg(target_thread_local)`.
     (unstable, cfg_target_thread_local, "1.7.0", Some(29594)),
     /// Allows the use of `#[cfg(ub_checks)` to check if UB checks are enabled.
-    (unstable, cfg_ub_checks, "CURRENT_RUSTC_VERSION", Some(123499)),
+    (unstable, cfg_ub_checks, "1.79.0", Some(123499)),
     /// Allow conditional compilation depending on rust version
     (unstable, cfg_version, "1.45.0", Some(64796)),
     /// Allows to use the `#[cfi_encoding = ""]` attribute.
@@ -439,7 +439,7 @@ pub fn internal(&self, feature: Symbol) -> bool {
     /// Allows having using `suggestion` in the `#[deprecated]` attribute.
     (unstable, deprecated_suggestion, "1.61.0", Some(94785)),
     /// Allows deref patterns.
-    (incomplete, deref_patterns, "CURRENT_RUSTC_VERSION", Some(87121)),
+    (incomplete, deref_patterns, "1.79.0", Some(87121)),
     /// Controls errors in trait implementations.
     (unstable, do_not_recommend, "1.67.0", Some(51992)),
     /// Tells rustdoc to automatically generate `#[doc(cfg(...))]`.
@@ -530,9 +530,9 @@ pub fn internal(&self, feature: Symbol) -> bool {
     /// Allows the `#[must_not_suspend]` attribute.
     (unstable, must_not_suspend, "1.57.0", Some(83310)),
     /// Make `mut` not reset the binding mode on edition >= 2024.
-    (incomplete, mut_preserve_binding_mode_2024, "CURRENT_RUSTC_VERSION", Some(123076)),
+    (incomplete, mut_preserve_binding_mode_2024, "1.79.0", Some(123076)),
     /// Allows `mut ref` and `mut ref mut` identifier patterns.
-    (incomplete, mut_ref, "CURRENT_RUSTC_VERSION", Some(123076)),
+    (incomplete, mut_ref, "1.79.0", Some(123076)),
     /// Allows using `#[naked]` on functions.
     (unstable, naked_functions, "1.9.0", Some(90957)),
     /// Allows specifying the as-needed link modifier
@@ -564,17 +564,17 @@ pub fn internal(&self, feature: Symbol) -> bool {
     /// Allows using `#[optimize(X)]`.
     (unstable, optimize_attribute, "1.34.0", Some(54882)),
     /// Allows postfix match `expr.match { ... }`
-    (unstable, postfix_match, "CURRENT_RUSTC_VERSION", Some(121618)),
+    (unstable, postfix_match, "1.79.0", Some(121618)),
     /// Allows `use<'a, 'b, A, B>` in `impl use<...> Trait` for precise capture of generic args.
-    (incomplete, precise_capturing, "CURRENT_RUSTC_VERSION", Some(123432)),
+    (incomplete, precise_capturing, "1.79.0", Some(123432)),
     /// Allows macro attributes on expressions, statements and non-inline modules.
     (unstable, proc_macro_hygiene, "1.30.0", Some(54727)),
     /// Allows `&raw const $place_expr` and `&raw mut $place_expr` expressions.
     (unstable, raw_ref_op, "1.41.0", Some(64490)),
     /// Makes `&` and `&mut` patterns eat only one layer of references in Rust 2024.
-    (incomplete, ref_pat_eat_one_layer_2024, "CURRENT_RUSTC_VERSION", Some(123076)),
+    (incomplete, ref_pat_eat_one_layer_2024, "1.79.0", Some(123076)),
     /// Allows `&` and `&mut` patterns to consume match-ergonomics-inserted references.
-    (incomplete, ref_pat_everywhere, "CURRENT_RUSTC_VERSION", Some(123076)),
+    (incomplete, ref_pat_everywhere, "1.79.0", Some(123076)),
     /// Allows using the `#[register_tool]` attribute.
     (unstable, register_tool, "1.41.0", Some(66079)),
     /// Allows the `#[repr(i128)]` attribute for enums.
diff --git a/library/alloc/src/str.rs b/library/alloc/src/str.rs
index d88639c4092..c0d292cd208 100644
--- a/library/alloc/src/str.rs
+++ b/library/alloc/src/str.rs
@@ -53,7 +53,7 @@
 pub use core::str::{RSplitN, SplitN};
 #[stable(feature = "rust1", since = "1.0.0")]
 pub use core::str::{RSplitTerminator, SplitTerminator};
-#[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "utf8_chunks", since = "1.79.0")]
 pub use core::str::{Utf8Chunk, Utf8Chunks};
 
 /// Note: `str` in `Concat<str>` is not meaningful here.
diff --git a/library/core/src/ffi/c_str.rs b/library/core/src/ffi/c_str.rs
index f4f33f8584b..aefb30463d3 100644
--- a/library/core/src/ffi/c_str.rs
+++ b/library/core/src/ffi/c_str.rs
@@ -528,7 +528,7 @@ const fn as_non_null_ptr(&self) -> NonNull<c_char> {
     #[inline]
     #[must_use]
     #[doc(alias("len", "strlen"))]
-    #[stable(feature = "cstr_count_bytes", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "cstr_count_bytes", since = "1.79.0")]
     #[rustc_const_unstable(feature = "const_cstr_from_ptr", issue = "113219")]
     pub const fn count_bytes(&self) -> usize {
         self.inner.len() - 1
diff --git a/library/core/src/intrinsics.rs b/library/core/src/intrinsics.rs
index 14b4ce39ab4..dc41fb5a778 100644
--- a/library/core/src/intrinsics.rs
+++ b/library/core/src/intrinsics.rs
@@ -1128,7 +1128,7 @@ pub const fn unlikely(b: bool) -> bool {
     /// any safety invariants.
     ///
     /// Consider using [`core::panic::Location::caller`] instead.
-    #[rustc_const_stable(feature = "const_caller_location", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_caller_location", since = "1.79.0")]
     #[rustc_safe_intrinsic]
     #[rustc_nounwind]
     pub fn caller_location() -> &'static crate::panic::Location<'static>;
@@ -2289,7 +2289,7 @@ pub const fn unlikely(b: bool) -> bool {
     ///
     /// The stable counterpart of this intrinsic is `unchecked_add` on the various
     /// integer types, such as [`u16::unchecked_add`] and [`i64::unchecked_add`].
-    #[rustc_const_stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "unchecked_math", since = "1.79.0")]
     #[rustc_nounwind]
     pub fn unchecked_add<T: Copy>(x: T, y: T) -> T;
 
@@ -2298,7 +2298,7 @@ pub const fn unlikely(b: bool) -> bool {
     ///
     /// The stable counterpart of this intrinsic is `unchecked_sub` on the various
     /// integer types, such as [`u16::unchecked_sub`] and [`i64::unchecked_sub`].
-    #[rustc_const_stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "unchecked_math", since = "1.79.0")]
     #[rustc_nounwind]
     pub fn unchecked_sub<T: Copy>(x: T, y: T) -> T;
 
@@ -2307,7 +2307,7 @@ pub const fn unlikely(b: bool) -> bool {
     ///
     /// The stable counterpart of this intrinsic is `unchecked_mul` on the various
     /// integer types, such as [`u16::unchecked_mul`] and [`i64::unchecked_mul`].
-    #[rustc_const_stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "unchecked_math", since = "1.79.0")]
     #[rustc_nounwind]
     pub fn unchecked_mul<T: Copy>(x: T, y: T) -> T;
 
diff --git a/library/core/src/iter/traits/collect.rs b/library/core/src/iter/traits/collect.rs
index 2ebbe2bf274..563781230c0 100644
--- a/library/core/src/iter/traits/collect.rs
+++ b/library/core/src/iter/traits/collect.rs
@@ -169,7 +169,7 @@ pub trait FromIterator<A>: Sized {
 /// assert_eq!(lengths, [1, 1, 3, 1]);
 /// # Ok(()) }
 /// ```
-#[stable(feature = "from_iterator_for_tuple", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "from_iterator_for_tuple", since = "1.79.0")]
 impl<A, B, AE, BE> FromIterator<(AE, BE)> for (A, B)
 where
     A: Default + Extend<AE>,
diff --git a/library/core/src/num/int_macros.rs b/library/core/src/num/int_macros.rs
index a92da88dd3f..f50419dad20 100644
--- a/library/core/src/num/int_macros.rs
+++ b/library/core/src/num/int_macros.rs
@@ -481,8 +481,8 @@ pub const fn strict_add(self, rhs: Self) -> Self {
         /// [`unwrap_unchecked`]: option/enum.Option.html#method.unwrap_unchecked
         #[doc = concat!("[`checked_add`]: ", stringify!($SelfT), "::checked_add")]
         #[doc = concat!("[`wrapping_add`]: ", stringify!($SelfT), "::wrapping_add")]
-        #[stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
-        #[rustc_const_stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
+        #[stable(feature = "unchecked_math", since = "1.79.0")]
+        #[rustc_const_stable(feature = "unchecked_math", since = "1.79.0")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline(always)]
@@ -623,8 +623,8 @@ pub const fn strict_sub(self, rhs: Self) -> Self {
         /// [`unwrap_unchecked`]: option/enum.Option.html#method.unwrap_unchecked
         #[doc = concat!("[`checked_sub`]: ", stringify!($SelfT), "::checked_sub")]
         #[doc = concat!("[`wrapping_sub`]: ", stringify!($SelfT), "::wrapping_sub")]
-        #[stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
-        #[rustc_const_stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
+        #[stable(feature = "unchecked_math", since = "1.79.0")]
+        #[rustc_const_stable(feature = "unchecked_math", since = "1.79.0")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline(always)]
@@ -765,8 +765,8 @@ pub const fn strict_mul(self, rhs: Self) -> Self {
         /// [`unwrap_unchecked`]: option/enum.Option.html#method.unwrap_unchecked
         #[doc = concat!("[`checked_mul`]: ", stringify!($SelfT), "::checked_mul")]
         #[doc = concat!("[`wrapping_mul`]: ", stringify!($SelfT), "::wrapping_mul")]
-        #[stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
-        #[rustc_const_stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
+        #[stable(feature = "unchecked_math", since = "1.79.0")]
+        #[rustc_const_stable(feature = "unchecked_math", since = "1.79.0")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline(always)]
diff --git a/library/core/src/num/mod.rs b/library/core/src/num/mod.rs
index 443401c5dba..c02f73fdf03 100644
--- a/library/core/src/num/mod.rs
+++ b/library/core/src/num/mod.rs
@@ -67,7 +67,7 @@ macro_rules! unlikely {
 )]
 pub use nonzero::ZeroablePrimitive;
 
-#[stable(feature = "generic_nonzero", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "generic_nonzero", since = "1.79.0")]
 pub use nonzero::NonZero;
 
 #[stable(feature = "signed_nonzero", since = "1.34.0")]
diff --git a/library/core/src/num/nonzero.rs b/library/core/src/num/nonzero.rs
index 5a0958fdc89..fca36787659 100644
--- a/library/core/src/num/nonzero.rs
+++ b/library/core/src/num/nonzero.rs
@@ -109,7 +109,7 @@ unsafe impl const ZeroablePrimitive for $primitive {
 ///
 /// assert_eq!(size_of::<Option<NonZero<u32>>>(), size_of::<u32>());
 /// ```
-#[stable(feature = "generic_nonzero", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "generic_nonzero", since = "1.79.0")]
 #[repr(transparent)]
 #[rustc_nonnull_optimization_guaranteed]
 #[rustc_diagnostic_item = "NonZero"]
@@ -861,7 +861,7 @@ fn div(self, other: $Ty) -> $Int {
             }
         }
 
-        #[stable(feature = "nonzero_div_assign", since = "CURRENT_RUSTC_VERSION")]
+        #[stable(feature = "nonzero_div_assign", since = "1.79.0")]
         impl DivAssign<$Ty> for $Int {
             /// This operation rounds towards zero,
             /// truncating any fractional part of the exact result, and cannot panic.
@@ -884,7 +884,7 @@ fn rem(self, other: $Ty) -> $Int {
             }
         }
 
-        #[stable(feature = "nonzero_div_assign", since = "CURRENT_RUSTC_VERSION")]
+        #[stable(feature = "nonzero_div_assign", since = "1.79.0")]
         impl RemAssign<$Ty> for $Int {
             /// This operation satisfies `n % d == n - (n / d) * d`, and cannot panic.
             #[inline]
diff --git a/library/core/src/num/uint_macros.rs b/library/core/src/num/uint_macros.rs
index ea14d769cc1..bb5113577c2 100644
--- a/library/core/src/num/uint_macros.rs
+++ b/library/core/src/num/uint_macros.rs
@@ -503,8 +503,8 @@ pub const fn strict_add(self, rhs: Self) -> Self {
         /// [`unwrap_unchecked`]: option/enum.Option.html#method.unwrap_unchecked
         #[doc = concat!("[`checked_add`]: ", stringify!($SelfT), "::checked_add")]
         #[doc = concat!("[`wrapping_add`]: ", stringify!($SelfT), "::wrapping_add")]
-        #[stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
-        #[rustc_const_stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
+        #[stable(feature = "unchecked_math", since = "1.79.0")]
+        #[rustc_const_stable(feature = "unchecked_math", since = "1.79.0")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline(always)]
@@ -660,8 +660,8 @@ pub const fn strict_sub(self, rhs: Self) -> Self {
         /// [`unwrap_unchecked`]: option/enum.Option.html#method.unwrap_unchecked
         #[doc = concat!("[`checked_sub`]: ", stringify!($SelfT), "::checked_sub")]
         #[doc = concat!("[`wrapping_sub`]: ", stringify!($SelfT), "::wrapping_sub")]
-        #[stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
-        #[rustc_const_stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
+        #[stable(feature = "unchecked_math", since = "1.79.0")]
+        #[rustc_const_stable(feature = "unchecked_math", since = "1.79.0")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline(always)]
@@ -746,8 +746,8 @@ pub const fn strict_mul(self, rhs: Self) -> Self {
         /// [`unwrap_unchecked`]: option/enum.Option.html#method.unwrap_unchecked
         #[doc = concat!("[`checked_mul`]: ", stringify!($SelfT), "::checked_mul")]
         #[doc = concat!("[`wrapping_mul`]: ", stringify!($SelfT), "::wrapping_mul")]
-        #[stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
-        #[rustc_const_stable(feature = "unchecked_math", since = "CURRENT_RUSTC_VERSION")]
+        #[stable(feature = "unchecked_math", since = "1.79.0")]
+        #[rustc_const_stable(feature = "unchecked_math", since = "1.79.0")]
         #[must_use = "this returns the result of the operation, \
                       without modifying the original"]
         #[inline(always)]
diff --git a/library/core/src/panic/location.rs b/library/core/src/panic/location.rs
index 4ad507d8b86..eb27da1724e 100644
--- a/library/core/src/panic/location.rs
+++ b/library/core/src/panic/location.rs
@@ -81,7 +81,7 @@ impl<'a> Location<'a> {
     /// ```
     #[must_use]
     #[stable(feature = "track_caller", since = "1.46.0")]
-    #[rustc_const_stable(feature = "const_caller_location", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_caller_location", since = "1.79.0")]
     #[track_caller]
     #[inline]
     pub const fn caller() -> &'static Location<'static> {
@@ -123,7 +123,7 @@ pub const fn caller() -> &'static Location<'static> {
     /// ```
     #[must_use]
     #[stable(feature = "panic_hooks", since = "1.10.0")]
-    #[rustc_const_stable(feature = "const_location_fields", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_location_fields", since = "1.79.0")]
     #[inline]
     pub const fn file(&self) -> &str {
         self.file
@@ -148,7 +148,7 @@ pub const fn file(&self) -> &str {
     /// ```
     #[must_use]
     #[stable(feature = "panic_hooks", since = "1.10.0")]
-    #[rustc_const_stable(feature = "const_location_fields", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_location_fields", since = "1.79.0")]
     #[inline]
     pub const fn line(&self) -> u32 {
         self.line
@@ -173,7 +173,7 @@ pub const fn line(&self) -> u32 {
     /// ```
     #[must_use]
     #[stable(feature = "panic_col", since = "1.25.0")]
-    #[rustc_const_stable(feature = "const_location_fields", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_location_fields", since = "1.79.0")]
     #[inline]
     pub const fn column(&self) -> u32 {
         self.col
diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs
index 9737fb8816e..e9eeb315330 100644
--- a/library/core/src/ptr/const_ptr.rs
+++ b/library/core/src/ptr/const_ptr.rs
@@ -1496,7 +1496,7 @@ pub const fn align_offset(self, align: usize) -> usize
     /// [tracking issue]: https://github.com/rust-lang/rust/issues/104203
     #[must_use]
     #[inline]
-    #[stable(feature = "pointer_is_aligned", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_is_aligned", since = "1.79.0")]
     #[rustc_const_unstable(feature = "const_pointer_is_aligned", issue = "104203")]
     pub const fn is_aligned(self) -> bool
     where
@@ -1653,8 +1653,8 @@ impl<T> *const [T] {
     /// assert_eq!(slice.len(), 3);
     /// ```
     #[inline]
-    #[stable(feature = "slice_ptr_len", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_slice_ptr_len", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "slice_ptr_len", since = "1.79.0")]
+    #[rustc_const_stable(feature = "const_slice_ptr_len", since = "1.79.0")]
     #[rustc_allow_const_fn_unstable(ptr_metadata)]
     pub const fn len(self) -> usize {
         metadata(self)
@@ -1671,8 +1671,8 @@ pub const fn len(self) -> usize {
     /// assert!(!slice.is_empty());
     /// ```
     #[inline(always)]
-    #[stable(feature = "slice_ptr_len", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_slice_ptr_len", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "slice_ptr_len", since = "1.79.0")]
+    #[rustc_const_stable(feature = "const_slice_ptr_len", since = "1.79.0")]
     pub const fn is_empty(self) -> bool {
         self.len() == 0
     }
diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs
index d8f91f1996b..c5a188dc7d4 100644
--- a/library/core/src/ptr/mut_ptr.rs
+++ b/library/core/src/ptr/mut_ptr.rs
@@ -1756,7 +1756,7 @@ pub const fn align_offset(self, align: usize) -> usize
     /// [tracking issue]: https://github.com/rust-lang/rust/issues/104203
     #[must_use]
     #[inline]
-    #[stable(feature = "pointer_is_aligned", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_is_aligned", since = "1.79.0")]
     #[rustc_const_unstable(feature = "const_pointer_is_aligned", issue = "104203")]
     pub const fn is_aligned(self) -> bool
     where
@@ -1915,8 +1915,8 @@ impl<T> *mut [T] {
     /// assert_eq!(slice.len(), 3);
     /// ```
     #[inline(always)]
-    #[stable(feature = "slice_ptr_len", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_slice_ptr_len", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "slice_ptr_len", since = "1.79.0")]
+    #[rustc_const_stable(feature = "const_slice_ptr_len", since = "1.79.0")]
     #[rustc_allow_const_fn_unstable(ptr_metadata)]
     pub const fn len(self) -> usize {
         metadata(self)
@@ -1933,8 +1933,8 @@ pub const fn len(self) -> usize {
     /// assert!(!slice.is_empty());
     /// ```
     #[inline(always)]
-    #[stable(feature = "slice_ptr_len", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(feature = "const_slice_ptr_len", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "slice_ptr_len", since = "1.79.0")]
+    #[rustc_const_stable(feature = "const_slice_ptr_len", since = "1.79.0")]
     pub const fn is_empty(self) -> bool {
         self.len() == 0
     }
diff --git a/library/core/src/ptr/non_null.rs b/library/core/src/ptr/non_null.rs
index 8697b22278f..617890cf083 100644
--- a/library/core/src/ptr/non_null.rs
+++ b/library/core/src/ptr/non_null.rs
@@ -1378,7 +1378,7 @@ pub const fn align_offset(self, align: usize) -> usize
     /// [tracking issue]: https://github.com/rust-lang/rust/issues/104203
     #[inline]
     #[must_use]
-    #[stable(feature = "pointer_is_aligned", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "pointer_is_aligned", since = "1.79.0")]
     #[rustc_const_unstable(feature = "const_pointer_is_aligned", issue = "104203")]
     pub const fn is_aligned(self) -> bool
     where
@@ -1564,11 +1564,8 @@ pub const fn len(self) -> usize {
     /// let slice: NonNull<[i8]> = NonNull::slice_from_raw_parts(NonNull::dangling(), 3);
     /// assert!(!slice.is_empty());
     /// ```
-    #[stable(feature = "slice_ptr_is_empty_nonnull", since = "CURRENT_RUSTC_VERSION")]
-    #[rustc_const_stable(
-        feature = "const_slice_ptr_is_empty_nonnull",
-        since = "CURRENT_RUSTC_VERSION"
-    )]
+    #[stable(feature = "slice_ptr_is_empty_nonnull", since = "1.79.0")]
+    #[rustc_const_stable(feature = "const_slice_ptr_is_empty_nonnull", since = "1.79.0")]
     #[must_use]
     #[inline]
     pub const fn is_empty(self) -> bool {
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs
index 6e1ba74f72b..9c523fd6295 100644
--- a/library/core/src/slice/mod.rs
+++ b/library/core/src/slice/mod.rs
@@ -1964,7 +1964,7 @@ pub const fn split_at_mut(&mut self, mid: usize) -> (&mut [T], &mut [T]) {
     ///     assert_eq!(right, []);
     /// }
     /// ```
-    #[stable(feature = "slice_split_at_unchecked", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "slice_split_at_unchecked", since = "1.79.0")]
     #[rustc_const_stable(feature = "const_slice_split_at_unchecked", since = "1.77.0")]
     #[inline]
     #[must_use]
@@ -2017,7 +2017,7 @@ pub const fn split_at_mut(&mut self, mid: usize) -> (&mut [T], &mut [T]) {
     /// }
     /// assert_eq!(v, [1, 2, 3, 4, 5, 6]);
     /// ```
-    #[stable(feature = "slice_split_at_unchecked", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "slice_split_at_unchecked", since = "1.79.0")]
     #[rustc_const_unstable(feature = "const_slice_split_at_mut", issue = "101804")]
     #[inline]
     #[must_use]
diff --git a/library/core/src/str/lossy.rs b/library/core/src/str/lossy.rs
index f8ecf1f3a7c..51a0777c2d6 100644
--- a/library/core/src/str/lossy.rs
+++ b/library/core/src/str/lossy.rs
@@ -40,7 +40,7 @@ impl [u8] {
     ///     assert_eq!(lit, expected);
     /// }
     /// ```
-    #[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "utf8_chunks", since = "1.79.0")]
     pub fn utf8_chunks(&self) -> Utf8Chunks<'_> {
         Utf8Chunks { source: self }
     }
@@ -66,7 +66,7 @@ pub fn utf8_chunks(&self) -> Utf8Chunks<'_> {
 /// // The fourth character is broken
 /// assert_eq!(b"\xF1\x80", chunk.invalid());
 /// ```
-#[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "utf8_chunks", since = "1.79.0")]
 #[derive(Clone, Debug, PartialEq, Eq)]
 pub struct Utf8Chunk<'a> {
     valid: &'a str,
@@ -79,7 +79,7 @@ impl<'a> Utf8Chunk<'a> {
     /// This substring can be empty at the start of the string or between
     /// broken UTF-8 characters.
     #[must_use]
-    #[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "utf8_chunks", since = "1.79.0")]
     pub fn valid(&self) -> &'a str {
         self.valid
     }
@@ -99,7 +99,7 @@ pub fn valid(&self) -> &'a str {
     /// [`valid`]: Self::valid
     /// [`U+FFFD REPLACEMENT CHARACTER`]: crate::char::REPLACEMENT_CHARACTER
     #[must_use]
-    #[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "utf8_chunks", since = "1.79.0")]
     pub fn invalid(&self) -> &'a [u8] {
         self.invalid
     }
@@ -172,7 +172,7 @@ fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
 ///
 /// [`String::from_utf8_lossy`]: ../../std/string/struct.String.html#method.from_utf8_lossy
 #[must_use = "iterators are lazy and do nothing unless consumed"]
-#[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "utf8_chunks", since = "1.79.0")]
 #[derive(Clone)]
 pub struct Utf8Chunks<'a> {
     source: &'a [u8],
@@ -186,7 +186,7 @@ pub fn debug(&self) -> Debug<'_> {
     }
 }
 
-#[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "utf8_chunks", since = "1.79.0")]
 impl<'a> Iterator for Utf8Chunks<'a> {
     type Item = Utf8Chunk<'a>;
 
@@ -285,10 +285,10 @@ fn safe_get(xs: &[u8], i: usize) -> u8 {
     }
 }
 
-#[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "utf8_chunks", since = "1.79.0")]
 impl FusedIterator for Utf8Chunks<'_> {}
 
-#[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "utf8_chunks", since = "1.79.0")]
 impl fmt::Debug for Utf8Chunks<'_> {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         f.debug_struct("Utf8Chunks").field("source", &self.debug()).finish()
diff --git a/library/core/src/str/mod.rs b/library/core/src/str/mod.rs
index 3313da9dce7..adccbe02d46 100644
--- a/library/core/src/str/mod.rs
+++ b/library/core/src/str/mod.rs
@@ -24,7 +24,7 @@
 pub mod pattern;
 
 mod lossy;
-#[stable(feature = "utf8_chunks", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "utf8_chunks", since = "1.79.0")]
 pub use lossy::{Utf8Chunk, Utf8Chunks};
 
 #[stable(feature = "rust1", since = "1.0.0")]
diff --git a/library/core/src/sync/atomic.rs b/library/core/src/sync/atomic.rs
index 073459fcb00..249b8ccb437 100644
--- a/library/core/src/sync/atomic.rs
+++ b/library/core/src/sync/atomic.rs
@@ -579,7 +579,7 @@ pub fn from_mut_slice(v: &mut [bool]) -> &mut [Self] {
     /// ```
     #[inline]
     #[stable(feature = "atomic_access", since = "1.15.0")]
-    #[rustc_const_stable(feature = "const_atomic_into_inner", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_atomic_into_inner", since = "1.79.0")]
     pub const fn into_inner(self) -> bool {
         self.v.primitive_into_inner() != 0
     }
@@ -1399,7 +1399,7 @@ pub fn from_mut_slice(v: &mut [*mut T]) -> &mut [Self] {
     /// ```
     #[inline]
     #[stable(feature = "atomic_access", since = "1.15.0")]
-    #[rustc_const_stable(feature = "const_atomic_into_inner", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_atomic_into_inner", since = "1.79.0")]
     pub const fn into_inner(self) -> *mut T {
         self.p.primitive_into_inner()
     }
@@ -2381,7 +2381,7 @@ pub fn from_mut_slice(v: &mut [$int_type]) -> &mut [Self] {
             /// ```
             #[inline]
             #[$stable_access]
-            #[rustc_const_stable(feature = "const_atomic_into_inner", since = "CURRENT_RUSTC_VERSION")]
+            #[rustc_const_stable(feature = "const_atomic_into_inner", since = "1.79.0")]
             pub const fn into_inner(self) -> $int_type {
                 self.v.primitive_into_inner()
             }
diff --git a/library/proc_macro/src/lib.rs b/library/proc_macro/src/lib.rs
index 1ceff2e506c..23ae2e7dc0d 100644
--- a/library/proc_macro/src/lib.rs
+++ b/library/proc_macro/src/lib.rs
@@ -1360,7 +1360,7 @@ pub fn character(ch: char) -> Literal {
     }
 
     /// Byte character literal.
-    #[stable(feature = "proc_macro_byte_character", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "proc_macro_byte_character", since = "1.79.0")]
     pub fn byte_character(byte: u8) -> Literal {
         let string = [byte].escape_ascii().to_string();
         Literal::new(bridge::LitKind::Byte, &string, None)
@@ -1374,7 +1374,7 @@ pub fn byte_string(bytes: &[u8]) -> Literal {
     }
 
     /// C string literal.
-    #[stable(feature = "proc_macro_c_str_literals", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "proc_macro_c_str_literals", since = "1.79.0")]
     pub fn c_string(string: &CStr) -> Literal {
         let string = string.to_bytes().escape_ascii().to_string();
         Literal::new(bridge::LitKind::CStr, &string, None)
diff --git a/library/std/src/io/cursor.rs b/library/std/src/io/cursor.rs
index 5b782fff7e5..f6680b211c7 100644
--- a/library/std/src/io/cursor.rs
+++ b/library/std/src/io/cursor.rs
@@ -95,7 +95,7 @@ impl<T> Cursor<T> {
     /// # force_inference(&buff);
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_const_stable(feature = "const_io_structs", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_io_structs", since = "1.79.0")]
     pub const fn new(inner: T) -> Cursor<T> {
         Cursor { pos: 0, inner }
     }
@@ -132,7 +132,7 @@ pub fn into_inner(self) -> T {
     /// let reference = buff.get_ref();
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_const_stable(feature = "const_io_structs", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_io_structs", since = "1.79.0")]
     pub const fn get_ref(&self) -> &T {
         &self.inner
     }
@@ -178,7 +178,7 @@ pub fn get_mut(&mut self) -> &mut T {
     /// assert_eq!(buff.position(), 1);
     /// ```
     #[stable(feature = "rust1", since = "1.0.0")]
-    #[rustc_const_stable(feature = "const_io_structs", since = "CURRENT_RUSTC_VERSION")]
+    #[rustc_const_stable(feature = "const_io_structs", since = "1.79.0")]
     pub const fn position(&self) -> u64 {
         self.pos
     }
diff --git a/library/std/src/io/error.rs b/library/std/src/io/error.rs
index 801621c6112..f366cb8f42b 100644
--- a/library/std/src/io/error.rs
+++ b/library/std/src/io/error.rs
@@ -921,7 +921,7 @@ pub fn into_inner(self) -> Option<Box<dyn error::Error + Send + Sync>> {
     /// assert!(io_error.raw_os_error().is_none());
     /// # }
     /// ```
-    #[stable(feature = "io_error_downcast", since = "CURRENT_RUSTC_VERSION")]
+    #[stable(feature = "io_error_downcast", since = "1.79.0")]
     pub fn downcast<E>(self) -> result::Result<E, Self>
     where
         E: error::Error + Send + Sync + 'static,
diff --git a/library/std/src/io/util.rs b/library/std/src/io/util.rs
index 266a447f06b..b4c4dffc371 100644
--- a/library/std/src/io/util.rs
+++ b/library/std/src/io/util.rs
@@ -51,7 +51,7 @@
 /// ```
 #[must_use]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_stable(feature = "const_io_structs", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_io_structs", since = "1.79.0")]
 pub const fn empty() -> Empty {
     Empty
 }
@@ -173,7 +173,7 @@ pub struct Repeat {
 /// ```
 #[must_use]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_stable(feature = "const_io_structs", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_io_structs", since = "1.79.0")]
 pub const fn repeat(byte: u8) -> Repeat {
     Repeat { byte }
 }
@@ -276,7 +276,7 @@ fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
 /// ```
 #[must_use]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_stable(feature = "const_io_structs", since = "CURRENT_RUSTC_VERSION")]
+#[rustc_const_stable(feature = "const_io_structs", since = "1.79.0")]
 pub const fn sink() -> Sink {
     Sink
 }
diff --git a/library/std/src/num.rs b/library/std/src/num.rs
index fbe68f7e303..8910cdea7c0 100644
--- a/library/std/src/num.rs
+++ b/library/std/src/num.rs
@@ -23,7 +23,7 @@
 )]
 pub use core::num::ZeroablePrimitive;
 
-#[stable(feature = "generic_nonzero", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "generic_nonzero", since = "1.79.0")]
 pub use core::num::NonZero;
 
 #[stable(feature = "signed_nonzero", since = "1.34.0")]
diff --git a/library/std/src/path.rs b/library/std/src/path.rs
index 85355435100..79d800ff072 100644
--- a/library/std/src/path.rs
+++ b/library/std/src/path.rs
@@ -3374,7 +3374,7 @@ fn description(&self) -> &str {
 ///
 /// [posix-semantics]: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap04.html#tag_04_13
 /// [windows-path]: https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getfullpathnamew
-#[stable(feature = "absolute_path", since = "CURRENT_RUSTC_VERSION")]
+#[stable(feature = "absolute_path", since = "1.79.0")]
 pub fn absolute<P: AsRef<Path>>(path: P) -> io::Result<PathBuf> {
     let path = path.as_ref();
     if path.as_os_str().is_empty() {