diff --git a/cumulus/pallets/collator-selection/Cargo.toml b/cumulus/pallets/collator-selection/Cargo.toml
index 20f048b97d55..241a78466d61 100644
--- a/cumulus/pallets/collator-selection/Cargo.toml
+++ b/cumulus/pallets/collator-selection/Cargo.toml
@@ -77,5 +77,3 @@ try-runtime = [
 	"pallet-timestamp/try-runtime",
 	"sp-runtime/try-runtime",
 ]
-
-experimental = ["pallet-aura/experimental"]
diff --git a/cumulus/pallets/collator-selection/src/mock.rs b/cumulus/pallets/collator-selection/src/mock.rs
index fe41e7318bcd..a940889a9df9 100644
--- a/cumulus/pallets/collator-selection/src/mock.rs
+++ b/cumulus/pallets/collator-selection/src/mock.rs
@@ -125,7 +125,6 @@ impl pallet_aura::Config for Test {
 	type MaxAuthorities = ConstU32<100_000>;
 	type DisabledValidators = ();
 	type AllowMultipleBlocksPerSlot = ConstBool<false>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = pallet_aura::MinimumPeriodTimesTwo<Self>;
 }
 
diff --git a/cumulus/parachains/runtimes/assets/asset-hub-rococo/Cargo.toml b/cumulus/parachains/runtimes/assets/asset-hub-rococo/Cargo.toml
index 3eb63a24b74e..ad63a4122da5 100644
--- a/cumulus/parachains/runtimes/assets/asset-hub-rococo/Cargo.toml
+++ b/cumulus/parachains/runtimes/assets/asset-hub-rococo/Cargo.toml
@@ -253,8 +253,6 @@ std = [
 	"xcm/std",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # A feature that should be enabled when the runtime should be built for on-chain
 # deployment. This will disable stuff that shouldn't be part of the on-chain wasm
 # to make it smaller, like logging for example.
diff --git a/cumulus/parachains/runtimes/assets/asset-hub-rococo/src/lib.rs b/cumulus/parachains/runtimes/assets/asset-hub-rococo/src/lib.rs
index 32966ab6341d..6eecb5cb80b4 100644
--- a/cumulus/parachains/runtimes/assets/asset-hub-rococo/src/lib.rs
+++ b/cumulus/parachains/runtimes/assets/asset-hub-rococo/src/lib.rs
@@ -188,10 +188,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -725,7 +722,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/assets/asset-hub-westend/Cargo.toml b/cumulus/parachains/runtimes/assets/asset-hub-westend/Cargo.toml
index c10e02bd8a6c..c83e4d7c2cde 100644
--- a/cumulus/parachains/runtimes/assets/asset-hub-westend/Cargo.toml
+++ b/cumulus/parachains/runtimes/assets/asset-hub-westend/Cargo.toml
@@ -238,8 +238,6 @@ std = [
 	"xcm/std",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # A feature that should be enabled when the runtime should be built for on-chain
 # deployment. This will disable stuff that shouldn't be part of the on-chain wasm
 # to make it smaller, like logging for example.
diff --git a/cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs b/cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs
index 5246828da310..a8be34c08de1 100644
--- a/cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs
+++ b/cumulus/parachains/runtimes/assets/asset-hub-westend/src/lib.rs
@@ -172,10 +172,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -705,7 +702,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/Cargo.toml b/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/Cargo.toml
index 242627815d3a..2238a759ed2a 100644
--- a/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/Cargo.toml
+++ b/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/Cargo.toml
@@ -297,7 +297,6 @@ try-runtime = [
 	"sp-runtime/try-runtime",
 ]
 
-experimental = ["pallet-aura/experimental"]
 fast-runtime = []
 
 # A feature that should be enabled when the runtime should be built for on-chain
diff --git a/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs b/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs
index 16e3b2e8600f..94d0fa3e632e 100644
--- a/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs
+++ b/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs
@@ -279,10 +279,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -448,7 +445,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/Cargo.toml b/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/Cargo.toml
index b5fe093b8be7..a4d31ceb4aa8 100644
--- a/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/Cargo.toml
+++ b/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/Cargo.toml
@@ -247,8 +247,6 @@ try-runtime = [
 	"sp-runtime/try-runtime",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # A feature that should be enabled when the runtime should be built for on-chain
 # deployment. This will disable stuff that shouldn't be part of the on-chain wasm
 # to make it smaller, like logging for example.
diff --git a/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/lib.rs b/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/lib.rs
index 86ed8b2f488c..3e9a52d26b7f 100644
--- a/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/lib.rs
+++ b/cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/lib.rs
@@ -251,10 +251,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -408,7 +405,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/collectives/collectives-westend/Cargo.toml b/cumulus/parachains/runtimes/collectives/collectives-westend/Cargo.toml
index 32d7e97bc455..02782192fa1e 100644
--- a/cumulus/parachains/runtimes/collectives/collectives-westend/Cargo.toml
+++ b/cumulus/parachains/runtimes/collectives/collectives-westend/Cargo.toml
@@ -233,8 +233,6 @@ std = [
 	"xcm/std",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # A feature that should be enabled when the runtime should be built for on-chain
 # deployment. This will disable stuff that shouldn't be part of the on-chain wasm
 # to make it smaller, like logging for example.
diff --git a/cumulus/parachains/runtimes/collectives/collectives-westend/src/lib.rs b/cumulus/parachains/runtimes/collectives/collectives-westend/src/lib.rs
index 3887a1d74ecc..4a069639d5ef 100644
--- a/cumulus/parachains/runtimes/collectives/collectives-westend/src/lib.rs
+++ b/cumulus/parachains/runtimes/collectives/collectives-westend/src/lib.rs
@@ -185,10 +185,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -485,7 +482,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/contracts/contracts-rococo/Cargo.toml b/cumulus/parachains/runtimes/contracts/contracts-rococo/Cargo.toml
index 747f75cf2e26..550ea9161668 100644
--- a/cumulus/parachains/runtimes/contracts/contracts-rococo/Cargo.toml
+++ b/cumulus/parachains/runtimes/contracts/contracts-rococo/Cargo.toml
@@ -197,8 +197,6 @@ try-runtime = [
 	"sp-runtime/try-runtime",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # A feature that should be enabled when the runtime should be built for on-chain
 # deployment. This will disable stuff that shouldn't be part of the on-chain wasm
 # to make it smaller, like logging for example.
diff --git a/cumulus/parachains/runtimes/contracts/contracts-rococo/src/lib.rs b/cumulus/parachains/runtimes/contracts/contracts-rococo/src/lib.rs
index 8ce46ccd34f1..014da0b9a7b5 100644
--- a/cumulus/parachains/runtimes/contracts/contracts-rococo/src/lib.rs
+++ b/cumulus/parachains/runtimes/contracts/contracts-rococo/src/lib.rs
@@ -193,10 +193,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = pallet_timestamp::weights::SubstrateWeight<Runtime>;
 }
 
@@ -350,7 +347,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/coretime/coretime-rococo/Cargo.toml b/cumulus/parachains/runtimes/coretime/coretime-rococo/Cargo.toml
index 70a6a81bdcfb..1a5e5c942952 100644
--- a/cumulus/parachains/runtimes/coretime/coretime-rococo/Cargo.toml
+++ b/cumulus/parachains/runtimes/coretime/coretime-rococo/Cargo.toml
@@ -195,6 +195,4 @@ try-runtime = [
 	"sp-runtime/try-runtime",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 fast-runtime = []
diff --git a/cumulus/parachains/runtimes/coretime/coretime-rococo/src/lib.rs b/cumulus/parachains/runtimes/coretime/coretime-rococo/src/lib.rs
index 9913e47a93ab..b288a8a37daf 100644
--- a/cumulus/parachains/runtimes/coretime/coretime-rococo/src/lib.rs
+++ b/cumulus/parachains/runtimes/coretime/coretime-rococo/src/lib.rs
@@ -208,10 +208,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -372,7 +369,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/coretime/coretime-westend/Cargo.toml b/cumulus/parachains/runtimes/coretime/coretime-westend/Cargo.toml
index 549ef7ce4d78..9e4aa7bf6242 100644
--- a/cumulus/parachains/runtimes/coretime/coretime-westend/Cargo.toml
+++ b/cumulus/parachains/runtimes/coretime/coretime-westend/Cargo.toml
@@ -191,6 +191,4 @@ try-runtime = [
 	"sp-runtime/try-runtime",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 fast-runtime = []
diff --git a/cumulus/parachains/runtimes/coretime/coretime-westend/src/lib.rs b/cumulus/parachains/runtimes/coretime/coretime-westend/src/lib.rs
index 1a330821d3fc..db949d8ecc52 100644
--- a/cumulus/parachains/runtimes/coretime/coretime-westend/src/lib.rs
+++ b/cumulus/parachains/runtimes/coretime/coretime-westend/src/lib.rs
@@ -208,10 +208,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -372,7 +369,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/glutton/glutton-westend/Cargo.toml b/cumulus/parachains/runtimes/glutton/glutton-westend/Cargo.toml
index 23c5ce1c7f80..a357bf519e40 100644
--- a/cumulus/parachains/runtimes/glutton/glutton-westend/Cargo.toml
+++ b/cumulus/parachains/runtimes/glutton/glutton-westend/Cargo.toml
@@ -135,8 +135,6 @@ try-runtime = [
 	"sp-runtime/try-runtime",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # A feature that should be enabled when the runtime should be built for on-chain
 # deployment. This will disable stuff that shouldn't be part of the on-chain wasm
 # to make it smaller, like logging for example.
diff --git a/cumulus/parachains/runtimes/glutton/glutton-westend/src/lib.rs b/cumulus/parachains/runtimes/glutton/glutton-westend/src/lib.rs
index 199057c37647..64a5113c967d 100644
--- a/cumulus/parachains/runtimes/glutton/glutton-westend/src/lib.rs
+++ b/cumulus/parachains/runtimes/glutton/glutton-westend/src/lib.rs
@@ -221,10 +221,7 @@ impl cumulus_pallet_aura_ext::Config for Runtime {}
 impl pallet_timestamp::Config for Runtime {
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -233,7 +230,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/people/people-rococo/Cargo.toml b/cumulus/parachains/runtimes/people/people-rococo/Cargo.toml
index c9781639c3e4..780719607612 100644
--- a/cumulus/parachains/runtimes/people/people-rococo/Cargo.toml
+++ b/cumulus/parachains/runtimes/people/people-rococo/Cargo.toml
@@ -189,5 +189,3 @@ try-runtime = [
 	"polkadot-runtime-common/try-runtime",
 	"sp-runtime/try-runtime",
 ]
-
-experimental = ["pallet-aura/experimental"]
diff --git a/cumulus/parachains/runtimes/people/people-rococo/src/lib.rs b/cumulus/parachains/runtimes/people/people-rococo/src/lib.rs
index c5e420785de5..b0061d48c2af 100644
--- a/cumulus/parachains/runtimes/people/people-rococo/src/lib.rs
+++ b/cumulus/parachains/runtimes/people/people-rococo/src/lib.rs
@@ -188,10 +188,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -339,7 +336,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/people/people-westend/Cargo.toml b/cumulus/parachains/runtimes/people/people-westend/Cargo.toml
index 8d8421332c13..a3766f5be926 100644
--- a/cumulus/parachains/runtimes/people/people-westend/Cargo.toml
+++ b/cumulus/parachains/runtimes/people/people-westend/Cargo.toml
@@ -189,5 +189,3 @@ try-runtime = [
 	"polkadot-runtime-common/try-runtime",
 	"sp-runtime/try-runtime",
 ]
-
-experimental = ["pallet-aura/experimental"]
diff --git a/cumulus/parachains/runtimes/people/people-westend/src/lib.rs b/cumulus/parachains/runtimes/people/people-westend/src/lib.rs
index dea079a4a98a..dcceec094b55 100644
--- a/cumulus/parachains/runtimes/people/people-westend/src/lib.rs
+++ b/cumulus/parachains/runtimes/people/people-westend/src/lib.rs
@@ -188,10 +188,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = weights::pallet_timestamp::WeightInfo<Runtime>;
 }
 
@@ -339,7 +336,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/cumulus/parachains/runtimes/starters/seedling/Cargo.toml b/cumulus/parachains/runtimes/starters/seedling/Cargo.toml
index 1f5bee7784e9..9f08fdf59437 100644
--- a/cumulus/parachains/runtimes/starters/seedling/Cargo.toml
+++ b/cumulus/parachains/runtimes/starters/seedling/Cargo.toml
@@ -79,5 +79,3 @@ std = [
 	"sp-version/std",
 	"substrate-wasm-builder",
 ]
-
-experimental = ["pallet-aura/experimental"]
diff --git a/cumulus/parachains/runtimes/starters/seedling/src/lib.rs b/cumulus/parachains/runtimes/starters/seedling/src/lib.rs
index 023c99783023..6de082250dc1 100644
--- a/cumulus/parachains/runtimes/starters/seedling/src/lib.rs
+++ b/cumulus/parachains/runtimes/starters/seedling/src/lib.rs
@@ -213,17 +213,13 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<false>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = pallet_aura::MinimumPeriodTimesTwo<Self>;
 }
 
 impl pallet_timestamp::Config for Runtime {
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ parachains_common::SLOT_DURATION / 2 }>;
 	type WeightInfo = ();
 }
 
diff --git a/cumulus/parachains/runtimes/starters/shell/Cargo.toml b/cumulus/parachains/runtimes/starters/shell/Cargo.toml
index 5a8f2a9d1253..2f82547afe9a 100644
--- a/cumulus/parachains/runtimes/starters/shell/Cargo.toml
+++ b/cumulus/parachains/runtimes/starters/shell/Cargo.toml
@@ -99,5 +99,3 @@ try-runtime = [
 	"parachain-info/try-runtime",
 	"sp-runtime/try-runtime",
 ]
-
-experimental = ["pallet-aura/experimental"]
diff --git a/cumulus/parachains/runtimes/starters/shell/src/lib.rs b/cumulus/parachains/runtimes/starters/shell/src/lib.rs
index fedac36e48d6..11dd07954b30 100644
--- a/cumulus/parachains/runtimes/starters/shell/src/lib.rs
+++ b/cumulus/parachains/runtimes/starters/shell/src/lib.rs
@@ -245,17 +245,13 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<false>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = pallet_aura::MinimumPeriodTimesTwo<Self>;
 }
 
 impl pallet_timestamp::Config for Runtime {
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ parachains_common::SLOT_DURATION / 2 }>;
 	type WeightInfo = ();
 }
 
diff --git a/cumulus/parachains/runtimes/testing/penpal/Cargo.toml b/cumulus/parachains/runtimes/testing/penpal/Cargo.toml
index 5a8b15740e4b..62105b318f20 100644
--- a/cumulus/parachains/runtimes/testing/penpal/Cargo.toml
+++ b/cumulus/parachains/runtimes/testing/penpal/Cargo.toml
@@ -192,5 +192,3 @@ try-runtime = [
 	"polkadot-runtime-common/try-runtime",
 	"sp-runtime/try-runtime",
 ]
-
-experimental = ["pallet-aura/experimental"]
diff --git a/cumulus/parachains/runtimes/testing/penpal/src/lib.rs b/cumulus/parachains/runtimes/testing/penpal/src/lib.rs
index 62065619e42f..6242d19a6287 100644
--- a/cumulus/parachains/runtimes/testing/penpal/src/lib.rs
+++ b/cumulus/parachains/runtimes/testing/penpal/src/lib.rs
@@ -580,7 +580,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<false>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = pallet_aura::MinimumPeriodTimesTwo<Self>;
 }
 
diff --git a/cumulus/parachains/runtimes/testing/rococo-parachain/Cargo.toml b/cumulus/parachains/runtimes/testing/rococo-parachain/Cargo.toml
index 2023d9abf5d4..c1d8205d0fec 100644
--- a/cumulus/parachains/runtimes/testing/rococo-parachain/Cargo.toml
+++ b/cumulus/parachains/runtimes/testing/rococo-parachain/Cargo.toml
@@ -135,5 +135,3 @@ runtime-benchmarks = [
 	"xcm-builder/runtime-benchmarks",
 	"xcm-executor/runtime-benchmarks",
 ]
-
-experimental = ["pallet-aura/experimental"]
diff --git a/cumulus/parachains/runtimes/testing/rococo-parachain/src/lib.rs b/cumulus/parachains/runtimes/testing/rococo-parachain/src/lib.rs
index 469f06a1aa6f..7edbe9e8938e 100644
--- a/cumulus/parachains/runtimes/testing/rococo-parachain/src/lib.rs
+++ b/cumulus/parachains/runtimes/testing/rococo-parachain/src/lib.rs
@@ -228,10 +228,7 @@ impl pallet_timestamp::Config for Runtime {
 	/// A timestamp: milliseconds since the unix epoch.
 	type Moment = u64;
 	type OnTimestampSet = Aura;
-	#[cfg(feature = "experimental")]
 	type MinimumPeriod = ConstU64<0>;
-	#[cfg(not(feature = "experimental"))]
-	type MinimumPeriod = ConstU64<{ SLOT_DURATION / 2 }>;
 	type WeightInfo = ();
 }
 
@@ -595,7 +592,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<true>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/docs/sdk/Cargo.toml b/docs/sdk/Cargo.toml
index 8b498d407c02..3f40a950c286 100644
--- a/docs/sdk/Cargo.toml
+++ b/docs/sdk/Cargo.toml
@@ -86,6 +86,3 @@ sp-version = { path = "../../substrate/primitives/version" }
 
 # XCM
 xcm = { package = "staging-xcm", path = "../../polkadot/xcm" }
-
-[features]
-experimental = ["pallet-aura/experimental"]
diff --git a/docs/sdk/src/polkadot_sdk/cumulus.rs b/docs/sdk/src/polkadot_sdk/cumulus.rs
index 60c4839f9e2d..d6b12390ffd3 100644
--- a/docs/sdk/src/polkadot_sdk/cumulus.rs
+++ b/docs/sdk/src/polkadot_sdk/cumulus.rs
@@ -110,7 +110,6 @@ mod tests {
 				type DisabledValidators = ();
 				type MaxAuthorities = ConstU32<100_000>;
 				type AllowMultipleBlocksPerSlot = ConstBool<false>;
-				#[cfg(feature = "experimental")]
 				type SlotDuration = pallet_aura::MinimumPeriodTimesTwo<Self>;
 			}
 
diff --git a/prdoc/pr_3654.prdoc b/prdoc/pr_3654.prdoc
new file mode 100644
index 000000000000..de4a68d23569
--- /dev/null
+++ b/prdoc/pr_3654.prdoc
@@ -0,0 +1,14 @@
+# Schema: Polkadot SDK PRDoc Schema (prdoc) v1.0.0
+# See doc at https://raw.githubusercontent.com/paritytech/polkadot-sdk/master/prdoc/schema_user.json
+
+title: Remove `experimental` feature from `pallet-aura`
+
+doc:
+  - audience: Runtime Dev
+    description: |
+      The `experimental` feature in `pallet-aura`, previously used to gate different experimental
+      changes, became redundant with the introduction of the async backing which relies on the
+      mentioned changes, therefore, it is removed.
+
+crates:
+  - name: pallet-aura
diff --git a/substrate/frame/aura/src/lib.rs b/substrate/frame/aura/src/lib.rs
index f7506db05d1d..55653de97a8b 100644
--- a/substrate/frame/aura/src/lib.rs
+++ b/substrate/frame/aura/src/lib.rs
@@ -66,9 +66,6 @@ const LOG_TARGET: &str = "runtime::aura";
 ///
 /// This was the default behavior of the Aura pallet and may be used for
 /// backwards compatibility.
-///
-/// Note that this type is likely not useful without the `experimental`
-/// feature.
 pub struct MinimumPeriodTimesTwo<T>(sp_std::marker::PhantomData<T>);
 
 impl<T: pallet_timestamp::Config> Get<T::Moment> for MinimumPeriodTimesTwo<T> {
@@ -117,10 +114,6 @@ pub mod pallet {
 		/// The effective value of this type should not change while the chain is running.
 		///
 		/// For backwards compatibility either use [`MinimumPeriodTimesTwo`] or a const.
-		///
-		/// This associated type is only present when compiled with the `experimental`
-		/// feature.
-		#[cfg(feature = "experimental")]
 		type SlotDuration: Get<<Self as pallet_timestamp::Config>::Moment>;
 	}
 
@@ -250,17 +243,7 @@ impl<T: Config> Pallet<T> {
 
 	/// Determine the Aura slot-duration based on the Timestamp module configuration.
 	pub fn slot_duration() -> T::Moment {
-		#[cfg(feature = "experimental")]
-		{
-			T::SlotDuration::get()
-		}
-
-		#[cfg(not(feature = "experimental"))]
-		{
-			// we double the minimum block-period so each author can always propose within
-			// the majority of its slot.
-			<T as pallet_timestamp::Config>::MinimumPeriod::get().saturating_mul(2u32.into())
-		}
+		T::SlotDuration::get()
 	}
 
 	/// Ensure the correctness of the state of this pallet.
diff --git a/substrate/frame/aura/src/mock.rs b/substrate/frame/aura/src/mock.rs
index 8bc3e4071583..e39762e13d64 100644
--- a/substrate/frame/aura/src/mock.rs
+++ b/substrate/frame/aura/src/mock.rs
@@ -84,8 +84,6 @@ impl pallet_aura::Config for Test {
 	type DisabledValidators = MockDisabledValidators;
 	type MaxAuthorities = ConstU32<10>;
 	type AllowMultipleBlocksPerSlot = AllowMultipleBlocksPerSlot;
-
-	#[cfg(feature = "experimental")]
 	type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
diff --git a/templates/parachain/runtime/Cargo.toml b/templates/parachain/runtime/Cargo.toml
index 44e9341b568a..ce87577e730f 100644
--- a/templates/parachain/runtime/Cargo.toml
+++ b/templates/parachain/runtime/Cargo.toml
@@ -196,5 +196,3 @@ try-runtime = [
 	"polkadot-runtime-common/try-runtime",
 	"sp-runtime/try-runtime",
 ]
-
-experimental = ["pallet-aura/experimental"]
diff --git a/templates/parachain/runtime/src/lib.rs b/templates/parachain/runtime/src/lib.rs
index 74ecd751f672..34b82fa1513b 100644
--- a/templates/parachain/runtime/src/lib.rs
+++ b/templates/parachain/runtime/src/lib.rs
@@ -454,7 +454,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<100_000>;
 	type AllowMultipleBlocksPerSlot = ConstBool<false>;
-	#[cfg(feature = "experimental")]
 	type SlotDuration = pallet_aura::MinimumPeriodTimesTwo<Self>;
 }
 
diff --git a/templates/solochain/runtime/Cargo.toml b/templates/solochain/runtime/Cargo.toml
index 4f22e7ff6a3b..e65999531802 100644
--- a/templates/solochain/runtime/Cargo.toml
+++ b/templates/solochain/runtime/Cargo.toml
@@ -148,5 +148,3 @@ try-runtime = [
 	"pallet-transaction-payment/try-runtime",
 	"sp-runtime/try-runtime",
 ]
-
-experimental = ["pallet-aura/experimental"]
diff --git a/templates/solochain/runtime/src/lib.rs b/templates/solochain/runtime/src/lib.rs
index 409b639f021e..036978dc3b64 100644
--- a/templates/solochain/runtime/src/lib.rs
+++ b/templates/solochain/runtime/src/lib.rs
@@ -180,8 +180,6 @@ impl pallet_aura::Config for Runtime {
 	type DisabledValidators = ();
 	type MaxAuthorities = ConstU32<32>;
 	type AllowMultipleBlocksPerSlot = ConstBool<false>;
-
-	#[cfg(feature = "experimental")]
 	type SlotDuration = pallet_aura::MinimumPeriodTimesTwo<Runtime>;
 }