From 9ff4428e09a0958bf4f082af1dcfa7df8666df53 Mon Sep 17 00:00:00 2001
From: ObedChibunna <obedokerue@gmail.com>
Date: Sun, 18 Oct 2026 13:56:42 +0100
Subject: [PATCH 1/2] Use nightly Rust for contract edition 2024

---
 .github/workflows/CI.yaml     | 8 ++++----
 contracts/rust-toolchain.toml | 8 ++------
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/CI.yaml b/.github/workflows/CI.yaml
index dd530d7a..38da5a6a 100644
--- a/.github/workflows/CI.yaml
+++ b/.github/workflows/CI.yaml
@@ -204,10 +204,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v4
 
-      # rustup reads contracts/rust-toolchain.toml automatically and installs
-      # the pinned stable channel plus the wasm32-unknown-unknown target.
-      - name: Install Rust toolchain (stable + wasm32)
-        uses: dtolnay/rust-toolchain@stable
+      # Match contracts/rust-toolchain.toml, including the edition2024 parser
+      # required by the resolved workspace dependencies.
+      - name: Install Rust toolchain (nightly + wasm32)
+        uses: dtolnay/rust-toolchain@nightly
         with:
           targets: wasm32-unknown-unknown
           components: rustfmt,clippy,rust-src
diff --git a/contracts/rust-toolchain.toml b/contracts/rust-toolchain.toml
index ef51aaee..86e8f38a 100644
--- a/contracts/rust-toolchain.toml
+++ b/contracts/rust-toolchain.toml
@@ -1,8 +1,4 @@
-# Pinned Rust toolchain for the contracts workspace (#1889).
-#
-# Upgrade cadence: review this pin at the start of each quarter, and whenever a
-# new stable Rust release affects soroban-sdk support. Record every bump in
-# contracts/CHANGELOG.md so integrators can follow along.
 [toolchain]
-channel = "1.79.0"
+channel = "nightly"
+components = ["rustfmt", "clippy", "rust-src"]
 targets = ["wasm32-unknown-unknown"]

From 224ef19e147469dc258405bee54e0ae218ad9361 Mon Sep 17 00:00:00 2001
From: ObedChibunna <obedokerue@gmail.com>
Date: Sun, 18 Oct 2026 14:35:44 +0100
Subject: [PATCH 2/2] Add contracts lockfile and nightly formatting

---
 contracts/Cargo.lock                         | 2288 ++++++++++++++++++
 contracts/payment_escrow/src/lib.rs          |  111 +-
 contracts/payment_escrow/tests/edge_cases.rs |    8 +-
 contracts/revenue_distribution/src/lib.rs    |   55 +-
 4 files changed, 2415 insertions(+), 47 deletions(-)
 create mode 100644 contracts/Cargo.lock

diff --git a/contracts/Cargo.lock b/contracts/Cargo.lock
new file mode 100644
index 00000000..f8bf4f0d
--- /dev/null
+++ b/contracts/Cargo.lock
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diff --git a/contracts/payment_escrow/src/lib.rs b/contracts/payment_escrow/src/lib.rs
index 67824936..a93d96fe 100644
--- a/contracts/payment_escrow/src/lib.rs
+++ b/contracts/payment_escrow/src/lib.rs
@@ -1,7 +1,7 @@
 #![no_std]
 
 use soroban_sdk::{
-    contract, contractimpl, contractmeta, contracterror, contracttype, token, Address, BytesN, Env,
+    contract, contracterror, contractimpl, contractmeta, contracttype, token, Address, BytesN, Env,
 };
 
 contractmeta!(key = "name", val = "payment_escrow");
@@ -116,7 +116,9 @@ impl PaymentEscrowContract {
     pub fn propose_admin(env: Env, new_admin: Address) -> Result<(), Error> {
         let admin = load_admin(&env)?;
         admin.require_auth();
-        env.storage().instance().set(&DataKey::PendingAdmin, &new_admin);
+        env.storage()
+            .instance()
+            .set(&DataKey::PendingAdmin, &new_admin);
         Ok(())
     }
 
@@ -150,7 +152,10 @@ impl PaymentEscrowContract {
     }
 
     pub fn is_paused(env: Env) -> bool {
-        env.storage().instance().get(&DataKey::Paused).unwrap_or(false)
+        env.storage()
+            .instance()
+            .get(&DataKey::Paused)
+            .unwrap_or(false)
     }
 
     /// Create a new escrow, locking `amount` from `payer` for `beneficiary`.
@@ -166,7 +171,12 @@ impl PaymentEscrowContract {
     ) -> Result<(), Error> {
         payer.require_auth();
 
-        if env.storage().instance().get::<_, bool>(&DataKey::Paused).unwrap_or(false) {
+        if env
+            .storage()
+            .instance()
+            .get::<_, bool>(&DataKey::Paused)
+            .unwrap_or(false)
+        {
             return Err(Error::Paused);
         }
 
@@ -174,16 +184,16 @@ impl PaymentEscrowContract {
             return Err(Error::InvalidAmount);
         }
 
-        if env.storage().persistent().has(&DataKey::Escrow(escrow_id.clone())) {
+        if env
+            .storage()
+            .persistent()
+            .has(&DataKey::Escrow(escrow_id.clone()))
+        {
             return Err(Error::AlreadyExists);
         }
 
         // Pull the funds into the contract before recording the escrow.
-        token::Client::new(&env, &token).transfer(
-            &payer,
-            &env.current_contract_address(),
-            &amount,
-        );
+        token::Client::new(&env, &token).transfer(&payer, &env.current_contract_address(), &amount);
 
         let escrow = Escrow {
             payer,
@@ -194,7 +204,9 @@ impl PaymentEscrowContract {
             state: EscrowState::Locked,
         };
 
-        env.storage().persistent().set(&DataKey::Escrow(escrow_id), &escrow);
+        env.storage()
+            .persistent()
+            .set(&DataKey::Escrow(escrow_id), &escrow);
         Ok(())
     }
 
@@ -227,7 +239,9 @@ impl PaymentEscrowContract {
         );
         escrow.released = escrow.amount;
         escrow.state = EscrowState::Released;
-        env.storage().persistent().set(&DataKey::Escrow(escrow_id), &escrow);
+        env.storage()
+            .persistent()
+            .set(&DataKey::Escrow(escrow_id), &escrow);
         Ok(())
     }
 
@@ -268,7 +282,9 @@ impl PaymentEscrowContract {
         if released == escrow.amount {
             escrow.state = EscrowState::Completed;
         }
-        env.storage().persistent().set(&DataKey::Escrow(escrow_id), &escrow);
+        env.storage()
+            .persistent()
+            .set(&DataKey::Escrow(escrow_id), &escrow);
         Ok(())
     }
 
@@ -301,7 +317,9 @@ impl PaymentEscrowContract {
             &remaining,
         );
         escrow.state = EscrowState::Refunded;
-        env.storage().persistent().set(&DataKey::Escrow(escrow_id), &escrow);
+        env.storage()
+            .persistent()
+            .set(&DataKey::Escrow(escrow_id), &escrow);
         Ok(remaining)
     }
 
@@ -333,7 +351,9 @@ impl PaymentEscrowContract {
             &remaining,
         );
         escrow.state = EscrowState::Refunded;
-        env.storage().persistent().set(&DataKey::Escrow(escrow_id), &escrow);
+        env.storage()
+            .persistent()
+            .set(&DataKey::Escrow(escrow_id), &escrow);
         Ok(())
     }
 
@@ -390,12 +410,21 @@ mod escrow_test {
         let client = PaymentEscrowContractClient::new(&env, &contract_id);
 
         let token_admin = Address::generate(&env);
-        let token = env.register_stellar_asset_contract_v2(token_admin).address();
+        let token = env
+            .register_stellar_asset_contract_v2(token_admin)
+            .address();
         let payer = Address::generate(&env);
         let beneficiary = Address::generate(&env);
         token::StellarAssetClient::new(&env, &token).mint(&payer, &10_000);
 
-        Fixture { env, client, contract_id, token, payer, beneficiary }
+        Fixture {
+            env,
+            client,
+            contract_id,
+            token,
+            payer,
+            beneficiary,
+        }
     }
 
     fn balance(f: &Fixture, who: &Address) -> i128 {
@@ -412,7 +441,8 @@ mod escrow_test {
         let f = setup();
         let id = escrow_id(&f.env, 1);
 
-        f.client.create(&id, &f.payer, &f.beneficiary, &1_000, &f.token);
+        f.client
+            .create(&id, &f.payer, &f.beneficiary, &1_000, &f.token);
         assert_eq!(f.client.get_status(&id), 1);
         assert_eq!(balance(&f, &f.contract_id), 1_000);
         assert_eq!(balance(&f, &f.payer), 9_000);
@@ -429,7 +459,8 @@ mod escrow_test {
         let f = setup();
         let id = escrow_id(&f.env, 2);
 
-        f.client.create(&id, &f.payer, &f.beneficiary, &500, &f.token);
+        f.client
+            .create(&id, &f.payer, &f.beneficiary, &500, &f.token);
         assert_eq!(balance(&f, &f.payer), 9_500);
 
         f.client.refund(&id);
@@ -442,7 +473,8 @@ mod escrow_test {
     fn test_get_escrow_shows_the_held_amount() {
         let f = setup();
         let id = escrow_id(&f.env, 3);
-        f.client.create(&id, &f.payer, &f.beneficiary, &250, &f.token);
+        f.client
+            .create(&id, &f.payer, &f.beneficiary, &250, &f.token);
         let escrow = f.client.get_escrow(&id);
         assert_eq!(escrow.amount, 250);
         assert_eq!(escrow.token, f.token);
@@ -453,15 +485,29 @@ mod escrow_test {
         let f = setup();
         let released = escrow_id(&f.env, 4);
         let refunded = escrow_id(&f.env, 5);
-        f.client.create(&released, &f.payer, &f.beneficiary, &100, &f.token);
-        f.client.create(&refunded, &f.payer, &f.beneficiary, &100, &f.token);
+        f.client
+            .create(&released, &f.payer, &f.beneficiary, &100, &f.token);
+        f.client
+            .create(&refunded, &f.payer, &f.beneficiary, &100, &f.token);
         f.client.release(&released);
         f.client.refund(&refunded);
 
-        assert_eq!(f.client.try_release(&released), Err(Ok(Error::AlreadyReleased)));
-        assert_eq!(f.client.try_refund(&refunded), Err(Ok(Error::AlreadyRefunded)));
-        assert_eq!(f.client.try_release(&refunded), Err(Ok(Error::AlreadyRefunded)));
-        assert_eq!(f.client.try_refund(&released), Err(Ok(Error::AlreadyReleased)));
+        assert_eq!(
+            f.client.try_release(&released),
+            Err(Ok(Error::AlreadyReleased))
+        );
+        assert_eq!(
+            f.client.try_refund(&refunded),
+            Err(Ok(Error::AlreadyRefunded))
+        );
+        assert_eq!(
+            f.client.try_release(&refunded),
+            Err(Ok(Error::AlreadyRefunded))
+        );
+        assert_eq!(
+            f.client.try_refund(&released),
+            Err(Ok(Error::AlreadyReleased))
+        );
     }
 }
 
@@ -474,7 +520,13 @@ mod partial_release_test {
     use super::*;
     use soroban_sdk::testutils::Address as _;
 
-    fn setup() -> (Env, PaymentEscrowContractClient<'static>, Address, Address, Address) {
+    fn setup() -> (
+        Env,
+        PaymentEscrowContractClient<'static>,
+        Address,
+        Address,
+        Address,
+    ) {
         let env = Env::default();
         env.mock_all_auths();
         let id = env.register(PaymentEscrowContract, ());
@@ -685,7 +737,10 @@ mod admin_test {
     fn initialize_runs_once() {
         let (env, client, _) = setup();
         let other = Address::generate(&env);
-        assert_eq!(client.try_initialize(&other), Err(Ok(Error::AlreadyInitialized)));
+        assert_eq!(
+            client.try_initialize(&other),
+            Err(Ok(Error::AlreadyInitialized))
+        );
     }
 
     #[test]
diff --git a/contracts/payment_escrow/tests/edge_cases.rs b/contracts/payment_escrow/tests/edge_cases.rs
index c6f43acc..21aa142c 100644
--- a/contracts/payment_escrow/tests/edge_cases.rs
+++ b/contracts/payment_escrow/tests/edge_cases.rs
@@ -25,7 +25,13 @@ fn fixture() -> Fixture {
         .register_stellar_asset_contract_v2(Address::generate(&env))
         .address();
     token::StellarAssetClient::new(&env, &token).mint(&payer, &10_000);
-    Fixture { env, contract_id, payer, beneficiary, token }
+    Fixture {
+        env,
+        contract_id,
+        payer,
+        beneficiary,
+        token,
+    }
 }
 
 fn client(f: &Fixture) -> PaymentEscrowContractClient<'_> {
diff --git a/contracts/revenue_distribution/src/lib.rs b/contracts/revenue_distribution/src/lib.rs
index 606c871f..2f7ec508 100644
--- a/contracts/revenue_distribution/src/lib.rs
+++ b/contracts/revenue_distribution/src/lib.rs
@@ -1,7 +1,7 @@
 #![no_std]
 
 use soroban_sdk::{
-    contract, contractimpl, contractmeta, contracterror, contracttype, token, Address, Env, Symbol,
+    contract, contracterror, contractimpl, contractmeta, contracttype, token, Address, Env, Symbol,
     Vec,
 };
 
@@ -82,9 +82,11 @@ fn bump_ttl(env: &Env) {
         .persistent()
         .extend_ttl(&DataKey::Config, TTL_THRESHOLD, TTL_EXTEND_TO);
     if env.storage().persistent().has(&DataKey::ConfigVersion) {
-        env.storage()
-            .persistent()
-            .extend_ttl(&DataKey::ConfigVersion, TTL_THRESHOLD, TTL_EXTEND_TO);
+        env.storage().persistent().extend_ttl(
+            &DataKey::ConfigVersion,
+            TTL_THRESHOLD,
+            TTL_EXTEND_TO,
+        );
     }
 }
 
@@ -104,7 +106,9 @@ pub fn allocate(env: &Env, recipients: &Vec<Recipient>, amount: i128) -> Result<
         let base = product / total;
         shares.push_back(base);
         remainders.push_back(product % total);
-        allocated = allocated.checked_add(base).ok_or(Error::ArithmeticOverflow)?;
+        allocated = allocated
+            .checked_add(base)
+            .ok_or(Error::ArithmeticOverflow)?;
     }
 
     let mut leftover = amount
@@ -157,7 +161,9 @@ impl RevenueDistributionContract {
             .get(&DataKey::Admin)
             .ok_or(Error::NotInitialized)?;
         admin.require_auth();
-        env.storage().instance().set(&DataKey::PendingAdmin, &new_admin);
+        env.storage()
+            .instance()
+            .set(&DataKey::PendingAdmin, &new_admin);
         Ok(())
     }
 
@@ -182,11 +188,7 @@ impl RevenueDistributionContract {
     /// recipients with a zero share.
     ///
     /// CT-57: configure entrypoint with basis-point sum validation.
-    pub fn configure(
-        env: Env,
-        admin: Address,
-        recipients: Vec<Recipient>,
-    ) -> Result<(), Error> {
+    pub fn configure(env: Env, admin: Address, recipients: Vec<Recipient>) -> Result<(), Error> {
         // Authenticate the *stored* admin, never just the caller-supplied address.
         let stored: Address = env
             .storage()
@@ -208,7 +210,9 @@ impl RevenueDistributionContract {
             if r.basis_points == 0 {
                 return Err(Error::InvalidShare);
             }
-            total = total.checked_add(r.basis_points).ok_or(Error::ArithmeticOverflow)?;
+            total = total
+                .checked_add(r.basis_points)
+                .ok_or(Error::ArithmeticOverflow)?;
         }
         if total != TOTAL_BASIS_POINTS {
             return Err(Error::InvalidBasisPoints);
@@ -221,9 +225,14 @@ impl RevenueDistributionContract {
             .unwrap_or(0);
         let version = previous.checked_add(1).ok_or(Error::ArithmeticOverflow)?;
 
-        let config = RevenueConfig { recipients, admin: stored };
+        let config = RevenueConfig {
+            recipients,
+            admin: stored,
+        };
         env.storage().persistent().set(&DataKey::Config, &config);
-        env.storage().persistent().set(&DataKey::ConfigVersion, &version);
+        env.storage()
+            .persistent()
+            .set(&DataKey::ConfigVersion, &version);
         bump_ttl(&env);
 
         env.events().publish(
@@ -317,7 +326,10 @@ mod test {
     fn zero_share_recipient_is_rejected() {
         let (env, client, admin) = setup();
         let r = recipients(&env, &[0, 10_000]);
-        assert_eq!(client.try_configure(&admin, &r), Err(Ok(Error::InvalidShare)));
+        assert_eq!(
+            client.try_configure(&admin, &r),
+            Err(Ok(Error::InvalidShare))
+        );
     }
 
     #[test]
@@ -336,7 +348,8 @@ mod test {
         use soroban_sdk::testutils::Ledger;
         let (env, client, admin) = setup();
         client.configure(&admin, &recipients(&env, &[6_000, 4_000]));
-        env.ledger().with_mut(|l| l.sequence_number += 10 * DAY_IN_LEDGERS);
+        env.ledger()
+            .with_mut(|l| l.sequence_number += 10 * DAY_IN_LEDGERS);
         assert_eq!(client.get_config().recipients.len(), 2);
     }
 
@@ -396,8 +409,14 @@ mod admin_test {
     fn split(env: &Env) -> Vec<Recipient> {
         vec![
             env,
-            Recipient { address: Address::generate(env), basis_points: 6_000 },
-            Recipient { address: Address::generate(env), basis_points: 4_000 },
+            Recipient {
+                address: Address::generate(env),
+                basis_points: 6_000,
+            },
+            Recipient {
+                address: Address::generate(env),
+                basis_points: 4_000,
+            },
         ]
     }