diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8369e14..81b9c64 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,9 +2,9 @@ name: Go
 
 on:
   push:
-    branches: [master]
+    branches: [master, v8]
   pull_request:
-    branches: [master]
+    branches: [master, v8]
 
 jobs:
   build:
@@ -13,11 +13,11 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        go-version: [1.17.x, 1.18.x]
+        go-version: [1.18.x, 1.19.x]
 
     services:
       redis:
-        image: redis
+        image: redis:6.2.8
         options: >-
           --health-cmd "redis-cli ping" --health-interval 10s --health-timeout 5s --health-retries 5
         ports:
diff --git a/.gitignore b/.gitignore
index b975a7b..dc322f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
 *.rdb
-testdata/*/
+testdata/*
 .idea/
diff --git a/cluster_commands.go b/cluster_commands.go
index 085bce8..4406223 100644
--- a/cluster_commands.go
+++ b/cluster_commands.go
@@ -18,11 +18,12 @@ func (c *ClusterClient) DBSize(ctx context.Context) *IntCmd {
 			atomic.AddInt64(&size, n)
 			return nil
 		})
+
 		if err != nil {
-			cmd.SetErr(err)
-		} else {
-			cmd.val = size
+			return err
 		}
+
+		cmd.val = size
 		return nil
 	})
 	return cmd
@@ -46,10 +47,8 @@ func (c *ClusterClient) ScriptLoad(ctx context.Context, script string) *StringCm
 
 			return nil
 		})
-		if err != nil {
-			cmd.SetErr(err)
-		}
-		return nil
+
+		return err
 	})
 	return cmd
 }
@@ -60,10 +59,8 @@ func (c *ClusterClient) ScriptFlush(ctx context.Context) *StatusCmd {
 		err := c.ForEachShard(ctx, func(ctx context.Context, shard *Client) error {
 			return shard.ScriptFlush(ctx).Err()
 		})
-		if err != nil {
-			cmd.SetErr(err)
-		}
-		return nil
+
+		return err
 	})
 	return cmd
 }
@@ -98,11 +95,12 @@ func (c *ClusterClient) ScriptExists(ctx context.Context, hashes ...string) *Boo
 
 			return nil
 		})
+
 		if err != nil {
-			cmd.SetErr(err)
-		} else {
-			cmd.val = result
+			return err
 		}
+
+		cmd.val = result
 		return nil
 	})
 	return cmd
diff --git a/commands.go b/commands.go
index cc610bd..5d842f0 100644
--- a/commands.go
+++ b/commands.go
@@ -96,10 +96,6 @@ type Cmdable interface {
 	Exists(ctx context.Context, keys ...string) *IntCmd
 	Expire(ctx context.Context, key string, expiration time.Duration) *BoolCmd
 	ExpireAt(ctx context.Context, key string, tm time.Time) *BoolCmd
-	ExpireNX(ctx context.Context, key string, expiration time.Duration) *BoolCmd
-	ExpireXX(ctx context.Context, key string, expiration time.Duration) *BoolCmd
-	ExpireGT(ctx context.Context, key string, expiration time.Duration) *BoolCmd
-	ExpireLT(ctx context.Context, key string, expiration time.Duration) *BoolCmd
 	Keys(ctx context.Context, pattern string) *StringSliceCmd
 	Migrate(ctx context.Context, host, port, key string, db int, timeout time.Duration) *StatusCmd
 	Move(ctx context.Context, key string, db int) *BoolCmd
@@ -534,22 +530,6 @@ func (c cmdable) Expire(ctx context.Context, key string, expiration time.Duratio
 	return c.expire(ctx, key, expiration, "")
 }
 
-func (c cmdable) ExpireNX(ctx context.Context, key string, expiration time.Duration) *BoolCmd {
-	return c.expire(ctx, key, expiration, "NX")
-}
-
-func (c cmdable) ExpireXX(ctx context.Context, key string, expiration time.Duration) *BoolCmd {
-	return c.expire(ctx, key, expiration, "XX")
-}
-
-func (c cmdable) ExpireGT(ctx context.Context, key string, expiration time.Duration) *BoolCmd {
-	return c.expire(ctx, key, expiration, "GT")
-}
-
-func (c cmdable) ExpireLT(ctx context.Context, key string, expiration time.Duration) *BoolCmd {
-	return c.expire(ctx, key, expiration, "LT")
-}
-
 func (c cmdable) expire(
 	ctx context.Context, key string, expiration time.Duration, mode string,
 ) *BoolCmd {