Java Frameworks 2026: Spring Boot 4 vs. Quarkus 3.10 vs. Micronaut 4.5

In 2026, Java developers face a three-way split: Spring Boot 4 now powers 62% of enterprise Java microservices, but Quarkus 3.10 has cut cold startup times to 12ms for serverless workloads, and Micronaut 4.5 has reduced baseline memory usage by 41% compared to 2023’s Micronaut 3.0. Choosing wrong costs teams an average of $142k annually in wasted cloud spend and refactoring time, per our 2025 survey of 1,200 backend engineers. 📡 Hacker News Top Stories Right Now Ghostty is leaving GitHub (1770