diff --git a/.github/workflows/debug.yml b/.github/workflows/debug.yml
index 0b114b3d..2bca96e0 100644
--- a/.github/workflows/debug.yml
+++ b/.github/workflows/debug.yml
@@ -32,26 +32,6 @@ jobs:
       - name: Run Test
         run: |
           go test -v ./...
-  build_go118:
-    name: Debug build (Go 1.18)
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b # v4
-        with:
-          fetch-depth: 0
-      - name: Setup Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: ~1.18
-      - name: Cache go module
-        uses: actions/cache@v4
-        with:
-          path: |
-            ~/go/pkg/mod
-          key: go118-${{ hashFiles('**/go.sum') }}
-      - name: Run Test
-        run: make ci_build_go118
   build_go120:
     name: Debug build (Go 1.20)
     runs-on: ubuntu-latest
diff --git a/Makefile b/Makefile
index f6815470..78721f1d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,6 @@
 NAME = sing-box
 COMMIT = $(shell git rev-parse --short HEAD)
-TAGS_GO118 = with_gvisor,with_dhcp,with_wireguard,with_reality_server,with_clash_api
-TAGS_GO120 = with_quic,with_utls
+TAGS_GO120 = with_gvisor,with_dhcp,with_wireguard,with_reality_server,with_clash_api,with_quic,with_utls
 TAGS_GO121 = with_ech
 TAGS ?= $(TAGS_GO118),$(TAGS_GO120),$(TAGS_GO121)
 TAGS_TEST ?= with_gvisor,with_quic,with_wireguard,with_grpc,with_ech,with_utls,with_reality_server
@@ -20,13 +19,9 @@ PREFIX ?= $(shell go env GOPATH)
 build:
 	go build $(MAIN_PARAMS) $(MAIN)
 
-ci_build_go118:
-	go build $(PARAMS) $(MAIN)
-	go build $(PARAMS) -tags "$(TAGS_GO118)" $(MAIN)
-
 ci_build_go120:
 	go build $(PARAMS) $(MAIN)
-	go build $(PARAMS) -tags "$(TAGS_GO118),$(TAGS_GO120)" $(MAIN)
+	go build $(PARAMS) -tags "$(TAGS_GO120)" $(MAIN)
 
 ci_build:
 	go build $(PARAMS) $(MAIN)
diff --git a/debug_go119.go b/debug.go
similarity index 97%
rename from debug_go119.go
rename to debug.go
index cf522afb..2fa962d6 100644
--- a/debug_go119.go
+++ b/debug.go
@@ -1,5 +1,3 @@
-//go:build go1.19
-
 package box
 
 import (
diff --git a/debug_go118.go b/debug_go118.go
deleted file mode 100644
index bb132efb..00000000
--- a/debug_go118.go
+++ /dev/null
@@ -1,36 +0,0 @@
-//go:build !go1.19
-
-package box
-
-import (
-	"runtime/debug"
-
-	"github.com/sagernet/sing-box/common/conntrack"
-	"github.com/sagernet/sing-box/option"
-)
-
-func applyDebugOptions(options option.DebugOptions) {
-	applyDebugListenOption(options)
-	if options.GCPercent != nil {
-		debug.SetGCPercent(*options.GCPercent)
-	}
-	if options.MaxStack != nil {
-		debug.SetMaxStack(*options.MaxStack)
-	}
-	if options.MaxThreads != nil {
-		debug.SetMaxThreads(*options.MaxThreads)
-	}
-	if options.PanicOnFault != nil {
-		debug.SetPanicOnFault(*options.PanicOnFault)
-	}
-	if options.TraceBack != "" {
-		debug.SetTraceback(options.TraceBack)
-	}
-	if options.MemoryLimit != 0 {
-		// debug.SetMemoryLimit(int64(options.MemoryLimit))
-		conntrack.MemoryLimit = uint64(options.MemoryLimit)
-	}
-	if options.OOMKiller != nil {
-		conntrack.KillerEnabled = *options.OOMKiller
-	}
-}
diff --git a/docs/deprecated.md b/docs/deprecated.md
index 270aaaea..439bf7e8 100644
--- a/docs/deprecated.md
+++ b/docs/deprecated.md
@@ -4,6 +4,12 @@ icon: material/delete-alert
 
 # Deprecated Feature List
 
+## 1.10.0
+
+#### Drop support for go1.18 and go1.19
+
+Due to maintenance difficulties, sing-box 1.10.0 requires at least Go 1.20 to compile.
+
 ## 1.8.0
 
 #### Cache file and related features in Clash API
diff --git a/docs/deprecated.zh.md b/docs/deprecated.zh.md
index 69ec4bdd..76e7e768 100644
--- a/docs/deprecated.zh.md
+++ b/docs/deprecated.zh.md
@@ -4,6 +4,12 @@ icon: material/delete-alert
 
 # 废弃功能列表
 
+## 1.10.0
+
+#### 移除对 go1.18 和 go1.19 的支持
+
+由于维护困难，sing-box 1.10.0 要求至少 Go 1.20 才能编译。
+
 ## 1.8.0
 
 #### Clash API 中的 Cache file 及相关功能