diff --git a/.github/actions/prepare/action.yml b/.github/actions/prepare/action.yml
index 29302efac..355b2ea9c 100644
--- a/.github/actions/prepare/action.yml
+++ b/.github/actions/prepare/action.yml
@@ -14,7 +14,7 @@ runs:
   using: composite
   steps:
     - name: setup rust tool chain
-      uses: dtolnay/rust-toolchain@1.88.0  # v1.88.0
+      uses: dtolnay/rust-toolchain@1.91.1  # v1.91.1
       with:
         components: ${{ (inputs.components != '') && format('{0}, rustfmt, clippy', inputs.components) || 'rustfmt, clippy' }}
     - name: Install libsodium
diff --git a/.github/release-please/manifest.json b/.github/release-please/manifest.json
index af718e59d..ef197571f 100644
--- a/.github/release-please/manifest.json
+++ b/.github/release-please/manifest.json
@@ -1 +1 @@
-{".":"1.4.0"}
+{".":"1.5.0"}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a2502613b..d0e2d3ea9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,57 @@
 # Changelog
 
+## [1.5.0](https://github.com/OpenZeppelin/openzeppelin-relayer/compare/v1.4.0...v1.5.0) (2026-05-07)
+
+
+### 🚀 Features
+
+* **evm:** handle nonce gaps before resubmission ([#726](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/726)) ([2c785fd](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/2c785fd5ae5368d449fb57913858d97e14d7b75b))
+* **stellar:** Structure failed tx status_reason ([#765](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/765)) ([4bfd68d](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/4bfd68d6165b82e62d77a3acaa6ab3a3e5a3cf24))
+* **stellar:** Reuse backoff logic for Stellar sent txs ([#695](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/695)) ([281b13a](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/281b13a8a0601839a914cd7fe414352141b1f91e))
+* **stellar:** Allow additional resubmissions ([#668](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/668)) ([99027e5](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/99027e5e958bf9a6b2ebd38cdafdd97b8d26e0c5))
+* Use gradual 1.5x backoff for Stellar resubmission ([#730](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/730)) ([0795504](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/079550467ecd3b387cac0a7abda6c729d9e188b8))
+* Improve Stellar txs logic and reduce worker retries ([#675](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/675)) ([7ce4501](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/7ce4501dbb9b6fa6571cb9c958cc2cf0d5082efe))
+* Add insufficient fee and TRY_AGAIN_LATER outcome metrics for Stellar transactions ([#702](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/702)) ([672ee6d](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/672ee6d48c6561476a42dd7cb51c02dfa717b20b))
+* Stellar submission failures metrics ([#670](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/670)) ([fabe2f3](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/fabe2f39c39e1e64fa76d3df672d4e2bd6b28cc5))
+* Add logic to retry insufficient fee errors ([#688](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/688)) ([279efe4](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/279efe4d913e530a69e2ad6584978e12e912a985))
+* Improving initialize relayer logic for distributed mode ([#693](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/693)) ([13e2310](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/13e23100aaf15e252a5a12421e526846fff357a1))
+* Timeout handling and additional plugin pool improvements ([#691](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/691)) ([d2a9d56](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/d2a9d565b5f23f35bed289daf5e019a90d721e9e))
+* Allow fine-tuning SQS pooling ([#737](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/737)) ([05c3eee](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/05c3eee4daf86741a0ca079e00dfff3efe575c4c))
+* Add Redis TLS support via optional feature flags ([#674](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/674)) ([aaf5eb8](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/aaf5eb86241fb7ae7b4cbae0579551269b08359b))
+* Socket simplification ([#684](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/684)) ([ee494f6](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/ee494f69364686ef8d8bba0984c9a8620f4edb98))
+
+
+### 🐛 Bug Fixes
+
+* Extend non-retriable RPC messages ([#696](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/696)) ([cf553ef](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/cf553efe92cb53bd97a0821e40d00e35b408de5f))
+* Fix concurrent transaction repository update races ([#698](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/698)) ([7ce24c6](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/7ce24c6d7d711a421e79c37e070e6f5f0d2ac36c))
+* Fix for contract creation and invalid address formats ([#699](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/699)) ([1dae14b](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/1dae14b4fbbda3271ef045797eda614d0c05e65e))
+* Improve EVM and Solana transaction request flow ([#655](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/655)) ([818fbcb](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/818fbcbc216954cd96d07260e74dce06690cdeac))
+* Reset counter store on startup when env var exists ([#700](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/700)) ([0ecffbb](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/0ecffbbaf96c7cff59c665116c7098ab4710dcf4))
+* Docs changes ([#671](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/671)) ([1c2d7db](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/1c2d7db268b39536428ece986271367d9ddcf00d))
+
+
+### ⏪ Reverts
+
+* Revert "fix: Adding lock to init relayer instances" ([#692](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/692)) ([46e29bc](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/46e29bc3b998cd161f534e426ad1bb35bb44b562))
+
+
+### 🔧 Chores
+
+* Introduce client cache support and add to signers ([#729](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/729)) ([aede8aa](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/aede8aa82988e209903455ad4548300bcee474d5))
+* Include previous status in failed metric ([#735](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/735)) ([b7d333e](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/b7d333e11743fd7d816764b4cfd3e8e3774e909f))
+* **stellar:** Adjust fee according to CAP-0015 ([#680](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/680)) ([f720040](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/f720040958aca7fe8ffeb91feb12da0cee6ded9d))
+* **stellar:** Add channels with x402 example ([#686](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/686)) ([de7890b](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/de7890bec8f23878564edca6c47083ff42048206))
+* Regenerate openapi spec v1.4.0 ([#724](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/724)) ([bebce65](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/bebce65331e5f159a723db0df5cfd2fa796db08c))
+* Fix vulnerabilities ([#701](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/701)) ([9c675aa](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/9c675aa205e83a7cb6f952c72a47679ebb6559a2))
+* Add Polkadot EVM mainnet example ([#703](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/703)) ([b2dfc3a](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/b2dfc3a444c804c2b63a733f553113cf2535b603))
+* Bump channels-plugin versions ([#672](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/672), [#679](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/679), [#682](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/682), [#685](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/685), [#687](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/687), [#694](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/694), [#736](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/736), [#746](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/746))
+* Cargo dep bumps: actix-web 4.13.0 ([#710](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/710)), tracing-subscriber 0.3.23 ([#721](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/721)), num_enum 0.7.6 ([#719](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/719)), tempfile 3.27.0 ([#714](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/714)), tar 0.4.45 ([#723](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/723))
+* GitHub Actions group bumps ([#678](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/678), [#722](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/722), [#748](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/748))
+* JS example dep bumps: handlebars, minimatch, js-yaml ([#706](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/706), [#707](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/707), [#709](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/709), [#715](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/715), [#716](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/716), [#727](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/727), [#728](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/728))
+* Extending docs for x402 and channels ([#673](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/673)) ([d4144a2](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/d4144a25926127737f9cc3c0dde60d2c4b24e775))
+* Merge release-v1.4.0 branch into main ([#669](https://github.com/OpenZeppelin/openzeppelin-relayer/issues/669)) ([d809540](https://github.com/OpenZeppelin/openzeppelin-relayer/commit/d80954014be589cdd7369f655bfa8a2bbaa012b1))
+
 ## [1.4.0](https://github.com/OpenZeppelin/openzeppelin-relayer/compare/v1.3.0...v1.4.0) (2026-02-20)
 
 
diff --git a/Cargo.lock b/Cargo.lock
index 31a66d0b8..063784523 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -5688,7 +5688,7 @@ dependencies = [
 
 [[package]]
 name = "openzeppelin-relayer"
-version = "1.4.0"
+version = "1.5.0"
 dependencies = [
  "actix-governor",
  "actix-rt",
diff --git a/Cargo.toml b/Cargo.toml
index 0dad6cd14..6464f2d15 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,8 +1,8 @@
 [package]
 name = "openzeppelin-relayer"
-version = "1.4.0"
+version = "1.5.0"
 edition = "2021"
-rust-version = "1.88"         #MSRV
+rust-version = "1.91"         #MSRV
 
 [features]
 default = []
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 299158295..da476e360 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 [toolchain]
-channel = "1.88.0"
+channel = "1.91.1"
 profile = "minimal"
 components = [
     "rustc",
diff --git a/src/jobs/handlers/transaction_cleanup_handler.rs b/src/jobs/handlers/transaction_cleanup_handler.rs
index 1d4c73cd0..881967fa4 100644
--- a/src/jobs/handlers/transaction_cleanup_handler.rs
+++ b/src/jobs/handlers/transaction_cleanup_handler.rs
@@ -329,7 +329,7 @@ async fn process_status_cleanup(
         };
 
         let page_result = transaction_repo
-            .find_by_status_paginated(relayer_id, &[status.clone()], query, true)
+            .find_by_status_paginated(relayer_id, std::slice::from_ref(status), query, true)
             .await
             .map_err(|e| {
                 eyre::eyre!(
diff --git a/src/queues/sqs/worker.rs b/src/queues/sqs/worker.rs
index 8b92644e2..5bf272b90 100644
--- a/src/queues/sqs/worker.rs
+++ b/src/queues/sqs/worker.rs
@@ -903,7 +903,7 @@ fn poll_error_backoff_secs(consecutive_errors: u32) -> u64 {
 
     // Once well past the ceiling, periodically try the base interval
     // to quickly detect when the SQS endpoint recovers.
-    if consecutive_errors >= 7 && consecutive_errors % RECOVERY_PROBE_EVERY == 0 {
+    if consecutive_errors >= 7 && consecutive_errors.is_multiple_of(RECOVERY_PROBE_EVERY) {
         return base;
     }
 
diff --git a/src/repositories/api_key/api_key_in_memory.rs b/src/repositories/api_key/api_key_in_memory.rs
index 50291742b..9ed6003cb 100644
--- a/src/repositories/api_key/api_key_in_memory.rs
+++ b/src/repositories/api_key/api_key_in_memory.rs
@@ -39,7 +39,7 @@ impl InMemoryApiKeyRepository {
         }
     }
 
-    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<T>, RepositoryError> {
+    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<'_, T>, RepositoryError> {
         Ok(lock.lock().await)
     }
 }
diff --git a/src/repositories/network/network_in_memory.rs b/src/repositories/network/network_in_memory.rs
index f6af218cd..9b68790e4 100644
--- a/src/repositories/network/network_in_memory.rs
+++ b/src/repositories/network/network_in_memory.rs
@@ -40,7 +40,7 @@ impl InMemoryNetworkRepository {
         }
     }
 
-    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<T>, RepositoryError> {
+    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<'_, T>, RepositoryError> {
         Ok(lock.lock().await)
     }
 
diff --git a/src/repositories/notification/notification_in_memory.rs b/src/repositories/notification/notification_in_memory.rs
index 152b0ef01..816800c6c 100644
--- a/src/repositories/notification/notification_in_memory.rs
+++ b/src/repositories/notification/notification_in_memory.rs
@@ -39,7 +39,7 @@ impl InMemoryNotificationRepository {
         }
     }
 
-    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<T>, RepositoryError> {
+    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<'_, T>, RepositoryError> {
         Ok(lock.lock().await)
     }
 }
diff --git a/src/repositories/plugin/plugin_in_memory.rs b/src/repositories/plugin/plugin_in_memory.rs
index 1d12938c3..054fa2136 100644
--- a/src/repositories/plugin/plugin_in_memory.rs
+++ b/src/repositories/plugin/plugin_in_memory.rs
@@ -60,7 +60,7 @@ impl InMemoryPluginRepository {
         Ok(store.get(id).cloned())
     }
 
-    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<T>, RepositoryError> {
+    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<'_, T>, RepositoryError> {
         Ok(lock.lock().await)
     }
 }
diff --git a/src/repositories/relayer/relayer_in_memory.rs b/src/repositories/relayer/relayer_in_memory.rs
index 0f0981ad2..509bf9250 100644
--- a/src/repositories/relayer/relayer_in_memory.rs
+++ b/src/repositories/relayer/relayer_in_memory.rs
@@ -30,7 +30,7 @@ impl InMemoryRelayerRepository {
             store: Mutex::new(HashMap::new()),
         }
     }
-    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<T>, RepositoryError> {
+    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<'_, T>, RepositoryError> {
         Ok(lock.lock().await)
     }
 }
diff --git a/src/repositories/signer/signer_in_memory.rs b/src/repositories/signer/signer_in_memory.rs
index 9ccef7732..286e079ab 100644
--- a/src/repositories/signer/signer_in_memory.rs
+++ b/src/repositories/signer/signer_in_memory.rs
@@ -38,7 +38,7 @@ impl InMemorySignerRepository {
         }
     }
 
-    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<T>, RepositoryError> {
+    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<'_, T>, RepositoryError> {
         Ok(lock.lock().await)
     }
 }
diff --git a/src/repositories/transaction/transaction_in_memory.rs b/src/repositories/transaction/transaction_in_memory.rs
index 83116a007..491011aaa 100644
--- a/src/repositories/transaction/transaction_in_memory.rs
+++ b/src/repositories/transaction/transaction_in_memory.rs
@@ -43,7 +43,7 @@ impl InMemoryTransactionRepository {
         }
     }
 
-    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<T>, RepositoryError> {
+    async fn acquire_lock<T>(lock: &Mutex<T>) -> Result<MutexGuard<'_, T>, RepositoryError> {
         Ok(lock.lock().await)
     }
 
diff --git a/src/services/plugins/pool_executor.rs b/src/services/plugins/pool_executor.rs
index 7c31ed7af..44e4e5d23 100644
--- a/src/services/plugins/pool_executor.rs
+++ b/src/services/plugins/pool_executor.rs
@@ -485,7 +485,7 @@ impl PoolManager {
                     last_log_time = now;
                 } else {
                     suppressed_count += 1;
-                    if suppressed_count % 100 == 0 {
+                    if suppressed_count.is_multiple_of(100) {
                         tracing::warn!(
                             target: "pool_server",
                             suppressed = suppressed_count,