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Spring Boot 4.1

6 articles · Page 1 of 1
Java Tech Workshop
Java Tech Workshop
Sep 17, 2026 · Backend Development

Spring Boot 4.1 InetAddressFilter: Source-Level SSRF Protection Against Internal IPs & Cloud Metadata

This article dissects Spring Boot 4.1's built-in InetAddressFilter, showing how a single @Bean declaration blocks SSRF attacks by validating resolved IPs against private, loopback, link-local (including 169.254.169.254 cloud metadata), and multicast ranges before TCP connections are made, with automatic integration across RestClient, RestTemplate, and WebClient.

HTTP client securityInetAddressFilterSSRF protection
0 likes · 19 min read
Spring Boot 4.1 InetAddressFilter: Source-Level SSRF Protection Against Internal IPs & Cloud Metadata
LuTiao Programming
LuTiao Programming
Sep 12, 2026 · Backend Development

Spring Boot 4.1 gRPC: Why I Swapped One REST Call and What It Revealed About Microservice Boundaries

The author migrates a high-frequency internal inventory query from REST to gRPC in Spring Boot 4.1, discovering that gRPC's contract-first approach, binary encoding, and explicit timeout handling improve interface governance for service-to-service RPC, while REST remains better for web-facing and low-frequency APIs.

API ContractProtobufService-to-Service Communication
0 likes · 17 min read
Spring Boot 4.1 gRPC: Why I Swapped One REST Call and What It Revealed About Microservice Boundaries
java1234
java1234
Jun 25, 2026 · Backend Development

Spring Boot 4.1.0 Released: gRPC Auto‑Config, SSRF‑Safe HTTP Client, Lazy JDBC, @RedisListener and OpenTelemetry Enhancements

Spring Boot 4.1.0, launched on June 10, 2026, adds built‑in gRPC server/client auto‑configuration, an InetAddressFilter to block SSRF attacks, lazy JDBC connection fetching, automatic @RedisListener registration, unified Jackson settings, OpenTelemetry improvements and several other developer‑experience upgrades, all illustrated with runnable demos and migration tips.

@RedisListenerBackend DevelopmentOpenTelemetry
0 likes · 13 min read
Spring Boot 4.1.0 Released: gRPC Auto‑Config, SSRF‑Safe HTTP Client, Lazy JDBC, @RedisListener and OpenTelemetry Enhancements
Su San Talks Tech
Su San Talks Tech
Jun 16, 2026 · Backend Development

Spring Boot 4.1.0 Released – 8 Core New Features Every Developer Should Know

Spring Boot 4.1.0, launched on June 10 2026, builds on Spring Framework 7.0.x and adds eight production‑grade features—including official gRPC support, built‑in SSRF protection, OpenTelemetry enhancements, lazy datasource connections, Kotlin 2.3 support, and upgraded logging—while also detailing migration steps, deprecated APIs, and best‑fit scenarios.

KotlinLazy DataSourceOpenTelemetry
0 likes · 17 min read
Spring Boot 4.1.0 Released – 8 Core New Features Every Developer Should Know
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Jun 11, 2026 · Backend Development

Spring Boot 4.1 Released: 20 New Features and Key Improvements

Spring Boot 4.1 introduces 20 major updates, including removal of deprecated APIs, new gRPC support, enhanced Jackson configuration, improved observability with OpenTelemetry, SSL for RabbitMQ streams, lazy JDBC connections, and numerous Gradle and Maven plugin enhancements, while providing detailed migration guidance for developers.

BackendDocker ComposeJava
0 likes · 16 min read
Spring Boot 4.1 Released: 20 New Features and Key Improvements