diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1d187dfd..6369cfa0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,7 +26,7 @@ on:
 jobs:
   run:
     name: Run simulation
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
       - uses: actions/checkout@v4
         with:
@@ -35,7 +35,7 @@ jobs:
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: '1.22'
+          go-version: '1.23'
           cache: true
 
       - name: Run simulation
diff --git a/.github/workflows/go.yml b/.github/workflows/go.yml
index 2dfdcb4a..91fafcc1 100644
--- a/.github/workflows/go.yml
+++ b/.github/workflows/go.yml
@@ -30,17 +30,17 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        go: [ '1.21', '1.22']
+        go: [ '1.22', '1.23']
         os: [ubuntu-latest, windows-2022, macos-14]
         exclude:
           # Only latest Go version for Windows and MacOS.
           - os: windows-2022
-            go: '1.21'
+            go: '1.22'
           - os: macos-14
-            go: '1.21'
+            go: '1.22'
           # Exclude latest Go version for Ubuntu as Coverage uses it.
           - os: ubuntu-latest
-            go: '1.22'
+            go: '1.23'
     steps:
 
     - name: Setup go
@@ -62,7 +62,7 @@ jobs:
     - name: Setup Go
       uses: actions/setup-go@v5
       with:
-        go-version: 1.22
+        go-version: 1.23
 
     - name: Check out
       uses: actions/checkout@v4
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5cdd2cea..bc1bf067 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,7 +9,7 @@ New features:
 Behaviour changes:
 
 Improvements:
- * minimum required Go version is 1.21 (#122)
+ * minimum required Go version is 1.22 (#122, #126)
 
 Bugs fixed:
 
diff --git a/README.md b/README.md
index 5b97a410..f694ae93 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,7 @@
+[![Go Reference](https://pkg.go.dev/badge/github.com/nspcc-dev/dbft.svg)](https://pkg.go.dev/github.com/nspcc-dev/dbft/)
 ![Codecov](https://img.shields.io/codecov/c/github/nspcc-dev/dbft.svg)
 [![Report](https://goreportcard.com/badge/github.com/nspcc-dev/dbft)](https://goreportcard.com/report/github.com/nspcc-dev/dbft)
+![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/nspcc-dev/dbft?sort=semver)
 ![License](https://img.shields.io/github/license/nspcc-dev/dbft.svg?style=popout)
 
 # DBFT
diff --git a/dbft_test.go b/dbft_test.go
index f6ef2b75..75f003ea 100644
--- a/dbft_test.go
+++ b/dbft_test.go
@@ -409,8 +409,8 @@ func TestDBFT_OnReceiveRecoveryRequestResponds(t *testing.T) {
 	var params []recoveryset
 
 	for _, nodes := range []int{4, 5, 7, 10} { // 5 is a bad BFT number, but we want to test the logic anyway.
-		for sender := 0; sender < nodes; sender++ {
-			for recv := 0; recv < nodes; recv++ {
+		for sender := range nodes {
+			for recv := range nodes {
 				params = append(params, recoveryset{nodes, sender, recv, false})
 
 				for i := 1; i <= ((nodes-1)/3)+1; i++ {
@@ -1221,7 +1221,7 @@ func newConsensusPayload(c *dbft.Context[crypto.Uint256], t dbft.MessageType, ms
 }
 
 func getTestValidators(n int) (privs []dbft.PrivateKey, pubs []dbft.PublicKey) {
-	for i := 0; i < n; i++ {
+	for range n {
 		priv, pub := crypto.Generate(rand.Reader)
 		privs = append(privs, priv)
 		pubs = append(pubs, pub)
diff --git a/go.mod b/go.mod
index 6c8e4bdd..f062eec5 100644
--- a/go.mod
+++ b/go.mod
@@ -1,6 +1,6 @@
 module github.com/nspcc-dev/dbft
 
-go 1.21
+go 1.22
 
 require (
 	github.com/stretchr/testify v1.9.0
diff --git a/internal/consensus/amev_block.go b/internal/consensus/amev_block.go
index 8e51c5b6..4df63057 100644
--- a/internal/consensus/amev_block.go
+++ b/internal/consensus/amev_block.go
@@ -30,7 +30,7 @@ func NewAMEVBlock(pre dbft.PreBlock[crypto.Uint256], cnData [][]byte, m int) dbf
 	// Some artificial rules of new tx creation are invented here, but in Neo X there will
 	// be well-defined custom rules for Envelope transactions.
 	var sum uint32
-	for i := 0; i < m; i++ {
+	for i := range m {
 		sum += binary.BigEndian.Uint32(cnData[i])
 	}
 	tx := Tx64(math.MaxInt64 - int64(sum))
diff --git a/internal/merkle/merkle_tree.go b/internal/merkle/merkle_tree.go
index 5d6bb31e..1585006a 100644
--- a/internal/merkle/merkle_tree.go
+++ b/internal/merkle/merkle_tree.go
@@ -54,7 +54,7 @@ func buildTree(leaves ...TreeNode) *TreeNode {
 	}
 
 	parents := make([]TreeNode, (l+1)/2)
-	for i := 0; i < len(parents); i++ {
+	for i := range parents {
 		parents[i].Left = &leaves[i*2]
 		leaves[i*2].Parent = &parents[i]
 
diff --git a/internal/merkle/merkle_tree_test.go b/internal/merkle/merkle_tree_test.go
index 99706b16..5e769e03 100644
--- a/internal/merkle/merkle_tree_test.go
+++ b/internal/merkle/merkle_tree_test.go
@@ -25,7 +25,7 @@ func TestNewMerkleTree(t *testing.T) {
 
 	t.Run("predefined tree on 4 leaves", func(t *testing.T) {
 		hashes := make([]crypto.Uint256, 5)
-		for i := 0; i < 5; i++ {
+		for i := range hashes {
 			hashes[i] = sha256.Sum256([]byte{byte(i)})
 		}
 
diff --git a/internal/simulation/main.go b/internal/simulation/main.go
index d47ba6a1..0a2973ec 100644
--- a/internal/simulation/main.go
+++ b/internal/simulation/main.go
@@ -199,7 +199,7 @@ func (n *simNode) VerifyPayload(p dbft.ConsensusPayload[crypto.Uint256]) error {
 }
 
 func (n *simNode) addTx(count int) {
-	for i := 0; i < count; i++ {
+	for i := range count {
 		tx := consensus.Tx64(uint64(i))
 		n.pool.Add(&tx)
 	}