paritytech · iulianbarbu · Apr 17, 2025 · Apr 14, 2025
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/Cargo.toml b/Cargo.toml
@@ -22,7 +22,7 @@ docify = { version = "0.2.9" }
 futures = { version = "0.3.31" }
 futures-timer = { version = "3.0.2" }
 jsonrpsee = { version = "0.24.3" }
-polkadot-sdk = { version = "0.12.2", default-features = false }
+polkadot-sdk = { version = "2503.0.1", default-features = false }
+codec = { version = "3.7.4", default-features = false, package = "parity-scale-codec" }
+scale-info = { version = "2.11.6", default-features = false }
 serde_json = { version = "1.0.132", default-features = false }
-codec = { version = "3.6.12", default-features = false, package = "parity-scale-codec" }
-scale-info = { version = "2.11.1", default-features = false }
diff --git a/README.md b/README.md
@@ -42,6 +42,7 @@ such as a [Balances pallet](https://paritytech.github.io/polkadot-sdk/master/pal
 
 - 👤 The template has no consensus configured - it is best for experimenting with a single node network.
 
+
 ## Template Structure
 
 A Polkadot SDK based project such as this one consists of:
@@ -61,7 +62,7 @@ compiled unless building the entire workspace).
 - 🛠️ Depending on your operating system and Rust version, there might be additional
 packages required to compile this template - please take note of the Rust compiler output.
 
-Fetch minimal template code:
+Fetch minimal template code.
 
 ```sh
 git clone https://github.com/paritytech/polkadot-sdk-minimal-template.git minimal-template
@@ -147,11 +148,13 @@ docker run --rm polkadot-sdk-minimal-template
 We can install `zombienet` as described [here](https://paritytech.github.io/zombienet/install.html#installation),
 and `zombienet-omni-node.toml` contains the network specification we want to start.
 
+
 #### Update `zombienet-omni-node.toml` with a valid chain spec path
 
-Before starting the network with zombienet we must update the network specification
-with a valid chain spec path. If we need to generate one, we can look up at the previous
-section for chain spec creation [here](#use-chain-spec-builder-to-generate-the-chain_specjson-file).
+To simplify the process of starting the minimal template with ZombieNet and Omni Node, we've included a
+pre-configured development chain spec (dev_chain_spec.json) in the minimal template. The zombienet-omni-node.toml
+file in this template points to it, but you can update it to a new path for the chain spec generated on your machine.
+To generate a chain spec refer to [staging-chain-spec-builder](https://crates.io/crates/staging-chain-spec-builder)
 
 Then make the changes in the network specification like so:
 
@@ -210,10 +213,12 @@ Previously minimal template's development chains:
 
 ## Getting Help
 
-- 🧑‍🏫 To learn about Polkadot in general, [Polkadot.network](https://polkadot.network/) website is a good starting point.
+- 🧑‍🏫 To learn about Polkadot in general, [docs.Polkadot.com](https://docs.polkadot.com/) website is a good starting point.
 
 - 🧑‍🔧 For technical introduction, [here](https://github.com/paritytech/polkadot-sdk#-documentation) are
 the Polkadot SDK documentation resources.
 
 - 👥 Additionally, there are [GitHub issues](https://github.com/paritytech/polkadot-sdk/issues) and
 [Substrate StackExchange](https://substrate.stackexchange.com/).
+- 👥You can also reach out on the [Official Polkdot discord server](https://polkadot-discord.w3f.tools/)
+- 🧑Reach out on [Telegram](https://t.me/substratedevs) for more questions and discussions
diff --git a/dev_chain_spec.json b/dev_chain_spec.json
diff --git a/node/Cargo.toml b/node/Cargo.toml
@@ -14,14 +14,13 @@ build = "build.rs"
 targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
-docify = { workspace = true }
 clap = { features = ["derive"], workspace = true }
+docify = { workspace = true }
 futures = { features = ["thread-pool"], workspace = true }
 futures-timer = { workspace = true }
 jsonrpsee = { features = ["server"], workspace = true }
-serde_json = { workspace = true, default-features = true }
-polkadot-sdk = { workspace = true, features = ["experimental", "node"] }
 minimal-template-runtime.workspace = true
+polkadot-sdk = { workspace = true, features = ["experimental", "node"] }
 
 [build-dependencies]
 polkadot-sdk = { workspace = true, features = ["substrate-build-script-utils"] }

diff --git a/node/README.md b/node/README.md
@@ -16,8 +16,3 @@
 initial (genesis) state.
 - [`service.rs`](./src/service.rs): This file defines the node implementation.
 It's a place to configure consensus-related topics. In favor of minimalism, this template has no consensus configured.
-
-
-## Release
-
-Polkadot SDK Stable 2412
diff --git a/node/src/service.rs b/node/src/service.rs
@@ -134,7 +134,7 @@ pub fn new_full<Network: sc_network::NetworkBackend<Block, <Block as BlockT>::Ha
 		config.prometheus_config.as_ref().map(|cfg| &cfg.registry),
 	);
 
-	let (network, system_rpc_tx, tx_handler_controller, network_starter, sync_service) =
+	let (network, system_rpc_tx, tx_handler_controller, sync_service) =
 		sc_service::build_network(sc_service::BuildNetworkParams {
 			config: &config,
 			net_config,
@@ -264,6 +264,5 @@ pub fn new_full<Network: sc_network::NetworkBackend<Block, <Block as BlockT>::Ha
 		_ => {},
 	}
 
-	network_starter.start_network();
 	Ok(task_manager)
 }
diff --git a/pallets/template/Cargo.toml b/pallets/template/Cargo.toml
@@ -14,8 +14,8 @@ targets = ["x86_64-unknown-linux-gnu"]
 
 [dependencies]
 codec = { features = ["derive"], workspace = true }
-scale-info = { features = ["derive"], workspace = true }
 polkadot-sdk = { workspace = true, features = ["experimental", "runtime"], default-features = false }
+scale-info = { features = ["derive"], workspace = true }
 
 
 [features]

diff --git a/pallets/template/README.md b/pallets/template/README.md
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
@@ -11,10 +11,10 @@ publish = false
 
 [dependencies]
 codec = { workspace = true }
-scale-info = { workspace = true }
+pallet-minimal-template.workspace = true
 polkadot-sdk = { workspace = true, features = ["pallet-balances", "pallet-sudo", "pallet-timestamp", "pallet-transaction-payment", "pallet-transaction-payment-rpc-runtime-api", "runtime"] }
+scale-info = { workspace = true }
 serde_json = { workspace = true, default-features = false, features = ["alloc"] }
-pallet-minimal-template.workspace = true
 
 [build-dependencies]
 polkadot-sdk = { optional = true, workspace = true, features = ["substrate-wasm-builder"] }

diff --git a/runtime/README.md b/runtime/README.md
@@ -8,8 +8,3 @@ responsible for validating blocks and executing the state changes they define.
 
 👉 Learn more about FRAME
 [here](https://paritytech.github.io/polkadot-sdk/master/polkadot_sdk_docs/polkadot_sdk/frame_runtime/index.html).
-
-
-## Release
-
-Polkadot SDK Stable 2412
diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
@@ -41,7 +41,7 @@ pub mod genesis_config_presets {
 	use super::*;
 	use crate::{
 		interface::{Balance, MinimumBalance},
-		sp_keyring::AccountKeyring,
+		sp_keyring::Sr25519Keyring,
 		BalancesConfig, RuntimeGenesisConfig, SudoConfig,
 	};
 
@@ -51,17 +51,14 @@ pub mod genesis_config_presets {
 	/// Returns a development genesis config preset.
 	pub fn development_config_genesis() -> Value {
 		let endowment = <MinimumBalance as Get<Balance>>::get().max(1) * 1000;
-		let config = RuntimeGenesisConfig {
+		frame_support::build_struct_json_patch!(RuntimeGenesisConfig {
 			balances: BalancesConfig {
-				balances: AccountKeyring::iter()
+				balances: Sr25519Keyring::iter()
 					.map(|a| (a.to_account_id(), endowment))
 					.collect::<Vec<_>>(),
 			},
-			sudo: SudoConfig { key: Some(AccountKeyring::Alice.to_account_id()) },
-			..Default::default()
-		};
-
-		serde_json::to_value(config).expect("Could not build genesis config.")
+			sudo: SudoConfig { key: Some(Sr25519Keyring::Alice.to_account_id()) },
+		})
 	}
 
 	/// Get the set of the available genesis config presets.
@@ -121,6 +118,10 @@ type TxExtension = (
 	// Ensures that the sender has enough funds to pay for the transaction
 	// and deducts the fee from the sender's account.
 	pallet_transaction_payment::ChargeTransactionPayment<Runtime>,
+	// Reclaim the unused weight from the block using post dispatch information.
+	// It must be last in the pipeline in order to catch the refund in previous transaction
+	// extensions
+	frame_system::WeightReclaim<Runtime>,
 );
 
 // Composes the runtime by adding all the used pallets and deriving necessary types.
@@ -137,7 +138,8 @@ mod runtime {
 		RuntimeHoldReason,
 		RuntimeSlashReason,
 		RuntimeLockId,
-		RuntimeTask
+		RuntimeTask,
+		RuntimeViewFunction
 	)]
 	pub struct Runtime;
 

diff --git a/zombienet-omni-node.toml b/zombienet-omni-node.toml
@@ -1,8 +1,8 @@
 [relaychain]
 default_command = "polkadot-omni-node"
 chain = "dev"
-chain_spec_path = "<path/to/chain_spec.json>"
-default_args = ["--dev"]
+chain_spec_path = "./dev_chain_spec.json"
+default_args = ["--dev-block-time 3000"]
 
 [[relaychain.nodes]]
 name = "alice"