diff --git a/02_basic_concept/2.3_repository.md b/02_basic_concept/2.3_repository.md
index de2480c..362c2e4 100644
--- a/02_basic_concept/2.3_repository.md
+++ b/02_basic_concept/2.3_repository.md
@@ -81,7 +81,7 @@ jwilder/nginx-proxy:latest
 ## 其他 Registry
 
 ghcr.io/username/myapp:v1.0
-gcr.io/google-containers/pause:3.6
+gcr.io/google-containers/pause:3.10
 ```
 > 💡 **笔者提示**：如果不指定 Registry 地址，默认使用 Docker Hub。如果不指定标签，默认使用 `latest`。
 
diff --git a/07_dockerfile/7.7_arg.md b/07_dockerfile/7.7_arg.md
index e0222bb..2633451 100644
--- a/07_dockerfile/7.7_arg.md
+++ b/07_dockerfile/7.7_arg.md
@@ -227,7 +227,7 @@ FROM ${BASE_IMAGE}
 
 ## 可以构建不同基础镜像的版本
 
-## docker build --build-arg BASE_IMAGE=python:3.11-alpine .
+## docker build --build-arg BASE_IMAGE=python:3.14-alpine .
 
 ...
 ```
diff --git a/18_security/18.5_other_feature.md b/18_security/18.5_other_feature.md
index 8106a60..649c128 100644
--- a/18_security/18.5_other_feature.md
+++ b/18_security/18.5_other_feature.md
@@ -64,12 +64,12 @@ $ docker run --rm -it \
 
 ```bash
 ## 如果使用本地命令行扫描容器镜像
-$ trivy image alpine:3.10
+$ trivy image alpine:3.20
 
 2024-03-01T10:05:07.124Z	INFO	Number of language-specific files: 1
 2024-03-01T10:05:07.124Z	INFO	Detecting vulnerabilities...
 
-alpine:3.10 (alpine 3.10.3)
+alpine:3.20 (alpine 3.10.3)
 ===========================
 Total: 2 (UNKNOWN: 0, LOW: 0, MEDIUM: 1, HIGH: 1, CRITICAL: 0)
 
diff --git a/18_security/18.6_image_security.md b/18_security/18.6_image_security.md
index 3e2605f..35ab7cf 100644
--- a/18_security/18.6_image_security.md
+++ b/18_security/18.6_image_security.md
@@ -301,7 +301,7 @@ RUN apt-get update && apt-get install -y curl=7.68.0-1ubuntu1
 在 Dockerfile 中集成安全扫描：
 
 ```dockerfile
-FROM golang:1.20-alpine AS builder
+FROM golang:1.26-alpine AS builder
 WORKDIR /app
 COPY . .
 
diff --git a/19_observability/19.3_performance_optimization.md b/19_observability/19.3_performance_optimization.md
index d8ae2be..cff1906 100644
--- a/19_observability/19.3_performance_optimization.md
+++ b/19_observability/19.3_performance_optimization.md
@@ -305,7 +305,7 @@ journalctl -u docker -n 100 | grep -i "oom"
 
 ```python
 # Dockerfile
-FROM python:3.11-slim
+FROM python:3.14-slim
 WORKDIR /app
 COPY requirements.txt .
 RUN pip install -r requirements.txt memory_profiler tracemalloc
@@ -424,7 +424,7 @@ chmod +x hadolint
 
 ```dockerfile
 # Stage 1: 构建阶段
-FROM golang:1.20-alpine AS builder
+FROM golang:1.26-alpine AS builder
 
 WORKDIR /build
 
@@ -453,13 +453,13 @@ COPY --from=builder /build/app /app
 EXPOSE 8080
 ENTRYPOINT ["/app"]
 
-# 最终镜像大小通常 < 15MB（相比 golang:1.20-alpine 的 ~1GB）
+# 最终镜像大小通常 < 15MB（相比 golang:1.26-alpine 的 ~1GB）
 ```
 **Node.js 应用的多阶段构建：**
 
 ```dockerfile
 # Stage 1: 依赖安装
-FROM node:18-alpine AS dependencies
+FROM node:24-alpine AS dependencies
 
 WORKDIR /app
 COPY package*.json ./
@@ -467,7 +467,7 @@ RUN npm ci --only=production && \
     npm cache clean --force
 
 # Stage 2: 构建阶段
-FROM node:18-alpine AS builder
+FROM node:24-alpine AS builder
 
 WORKDIR /app
 COPY package*.json ./
@@ -477,7 +477,7 @@ COPY . .
 RUN npm run build
 
 # Stage 3: 运行阶段
-FROM node:18-alpine
+FROM node:24-alpine
 
 WORKDIR /app
 
@@ -504,7 +504,7 @@ CMD ["node", "dist/index.js"]
 
 ```dockerfile
 # Stage 1: 构建阶段
-FROM python:3.11-slim AS builder
+FROM python:3.14-slim AS builder
 
 WORKDIR /build
 
@@ -516,7 +516,7 @@ COPY requirements.txt .
 RUN pip install --user --no-cache-dir -r requirements.txt
 
 # Stage 2: 运行阶段
-FROM python:3.11-slim
+FROM python:3.14-slim
 
 WORKDIR /app
 
@@ -550,7 +550,7 @@ CMD ["python", "app.py"]
 □ 使用 BuildKit 缓存优化加速构建
 
 # 优化示例：
-FROM ubuntu:22.04
+FROM ubuntu:24.04
 
 # ❌ 不推荐
 RUN apt-get update
diff --git a/21_case_devops/21.1_devops_workflow.md b/21_case_devops/21.1_devops_workflow.md
index e167044..ca75087 100644
--- a/21_case_devops/21.1_devops_workflow.md
+++ b/21_case_devops/21.1_devops_workflow.md
@@ -23,7 +23,7 @@
 ```dockerfile
 ## Build stage
 
-FROM golang:1.23 AS builder
+FROM golang:1.26 AS builder
 WORKDIR /app
 COPY . .
 RUN go build -o main .
@@ -48,7 +48,7 @@ stages:
 
 unit_test:
   stage: test
-  image: golang:1.23
+  image: golang:1.26
   script:
     - go test ./...
 
diff --git a/21_case_devops/21.6_vsCode.md b/21_case_devops/21.6_vsCode.md
index 7e266a3..67ea6a3 100644
--- a/21_case_devops/21.6_vsCode.md
+++ b/21_case_devops/21.6_vsCode.md
@@ -17,7 +17,7 @@ VS Code 的 [Dev Containers](https://code.visualstudio.com/docs/devcontainers/co
 ```json
 {
   "name": "docker-practice-dev",
-  "image": "golang:1.22",
+  "image": "golang:1.26",
   "workspaceFolder": "/work",
   "workspaceMount": "source=${localWorkspaceFolder},target=/work,type=bind",
   "customizations": {
diff --git a/21_case_devops/21.7_practical_examples.md b/21_case_devops/21.7_practical_examples.md
index 825b85b..dca17d8 100644
--- a/21_case_devops/21.7_practical_examples.md
+++ b/21_case_devops/21.7_practical_examples.md
@@ -48,7 +48,7 @@ func main() {
 
 ```dockerfile
 # Stage 1: 构建阶段
-FROM golang:1.20-alpine AS builder
+FROM golang:1.26-alpine AS builder
 
 WORKDIR /build
 
@@ -106,7 +106,7 @@ docker exec go-demo ls -la /
 
 # 只包含 /app 和系统必要文件
 
-# 镜像大小通常 < 10MB（相比 golang:1.20-alpine 的 ~1GB）
+# 镜像大小通常 < 10MB（相比 golang:1.26-alpine 的 ~1GB）
 docker history go-app:latest
 ```
 **go.mod 和 go.sum 示例：**
@@ -114,7 +114,7 @@ docker history go-app:latest
 ```text
 module github.com/example/go-app
 
-go 1.20
+go 1.26
 
 require (
     // 如果需要依赖
@@ -154,7 +154,7 @@ func main() {
 **优化的 Dockerfile：**
 
 ```dockerfile
-FROM golang:1.20-alpine AS builder
+FROM golang:1.26-alpine AS builder
 
 WORKDIR /src
 
@@ -746,7 +746,7 @@ Dev Containers 让整个开发环境容器化，提升团队一致性。
 ```json
 {
   "name": "Python Dev Environment",
-  "image": "mcr.microsoft.com/devcontainers/python:3.11",
+  "image": "mcr.microsoft.com/devcontainers/python:3.14",
 
   "features": {
     "ghcr.io/devcontainers/features/docker-in-docker:2": {},
@@ -802,7 +802,7 @@ Dev Containers 让整个开发环境容器化，提升团队一致性。
 **.devcontainer/Dockerfile：**
 
 ```dockerfile
-FROM mcr.microsoft.com/devcontainers/python:3.11
+FROM mcr.microsoft.com/devcontainers/python:3.14
 
 # 安装额外工具
 RUN apt-get update && apt-get install -y \
diff --git a/appendix/learning_roadmap.md b/appendix/learning_roadmap.md
index 135c03d..025e304 100644
--- a/appendix/learning_roadmap.md
+++ b/appendix/learning_roadmap.md
@@ -574,7 +574,7 @@ A（要点）：
 A（要点）：
 ```text
 1. 选择合适的基础镜像：
-   scratch < alpine:3.17 < python:3.11-slim < python:3.11
+   scratch < alpine:3.17 < python:3.14-slim < python:3.14
 
 2. 多阶段构建：
    - 构建阶段只保留编译工具
diff --git a/docker_practice.pdf b/docker_practice.pdf
new file mode 100644
index 0000000..c88d117
Binary files /dev/null and b/docker_practice.pdf differ