本次发版为官方 2020 年度最后一次发版，Spring Boot 2.4.1、 2.3.7.RELEASE、 2.2.12.RELEASE 已发布，现在均可在 maven 中央仓库下载使用。
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>${version}</version>
</parent>
重点关注 2.4.1 版本，作为 2.4.x 第一个错误修正版本，此版本包括 59 个错误修复，文档改进和依赖项升级，主要修复 2.4.0 发布以来的关于配置文件加载变更问题。
🐞 Bug 修复
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无法处理# 标注后的属性文件会被直接忽略
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通配符路径的配置文件相互覆盖
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配置文件引用触发死循环
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配置文件属性和 JavaBean 绑定没有顺序
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解析 classpath 异常抛出 ConfigDataResourceNotFoundException
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configtree 无法绑定非字符串类型，提示没有转换器
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@Name 无法绑定 Kotlin 类型
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/actuator/env 端点针对包装类数据显示错误
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/actuator/health 端点和自定义 http 响应码无法兼容
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redis 健康检查器 影响 redis 性能
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使用 Log4J 的 LoggingSystem 调用将引发 NPE
🔨 依赖升级
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Upgrade to Caffeine 2.8.8 #24443
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Upgrade to DB2 JDBC 11.5.5.0 #24383
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Upgrade to Dropwizard Metrics 4.1.16 #24384
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Upgrade to Groovy 2.5.14 #24385
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Upgrade to Hibernate 5.4.25.Final #24386
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Upgrade to HttpCore 4.4.14 #24387
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Upgrade to Infinispan 11.0.8.Final #24388
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Upgrade to Jetty 9.4.35.v20201120 #24389
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Upgrade to jOOQ 3.14.4 #24390
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Upgrade to Kotlin 1.4.21 #24391
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Upgrade to Kotlin Coroutines 1.4.2 #24392
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Upgrade to MariaDB 2.7.1 #24393
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Upgrade to Micrometer 1.6.2 #24281
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Upgrade to Mockito 3.6.28 #24394
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Upgrade to Netty 4.1.55.Final #24444
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Upgrade to Netty tcNative 2.0.35.Final #24445
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Upgrade to Nimbus JOSE JWT 9.1.3 #24395
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Upgrade to Reactor 2020.0.2 #24275
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Upgrade to Spring AMQP 2.3.2 #24288
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Upgrade to Spring Batch 4.3.1 #24291
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Upgrade to Spring Data 2020.0.2 #24284
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Upgrade to Spring Framework 5.3.2 #24278
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Upgrade to Spring HATEOAS 1.2.2 #24285
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Upgrade to Spring Integration 5.4.2 #24442
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Upgrade to Spring Kafka 2.6.4 #24294
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Upgrade to Spring Security 5.4.2 #24297
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Upgrade to SQLite JDBC 3.32.3.3 #24446
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Upgrade to Tomcat 9.0.41 #24447
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Upgrade to Undertow 2.2.3.Final #24397
v2.4.1 详细更新说明查看
v2.3.7 详细更新说明查看
v2.2.12 详细更新说明查看
