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Spring v5.3.0-RC1 Release Notes

Release Date: 2020-09-15 // over 3 years ago

  • 🍱 ⭐ New Features

    • 0️⃣ MimeMessageHelper should not encode attachment filenames by default #25770
    • A beforeCommit chain failure invariably results in a 500 response #25753
    • 👌 Improve performance of JdkDynamicAopProxy.getProxy(ClassLoader) #25660
    • ➕ Add URI variables to request context in AbstractUrlHandlerMapping (reactive) #25648
    • Public method in RSocketMessageHandler to register any handler method #25639
    • 👍 Allow early decoration of request and response in WebFlux #25633
    • ✅ Spring Test: Methods should allow supertypes of Matcher using lower bounded wildcards #25610
    • 🔧 WebSocket configuration doesn't work properly with the buffer size limitation #25581
    • 👕 Declare interfaces as @FunctionalInterface where feasible #25580
    • Call StartupStep.end in finally block #25572
    • 👌 Support filename hint for client side use of ResourceDecoder #25516
    • ⏱ No way to set timeout for the requests when using Jetty reactive httpclient #25493
    • Mime type "application/*" is not compatible with "application/vnd+json" #25350
    • 🛠 Avoid resizing of fixed-size HashMap #25349
    • 👌 Support RSocket Load Balancing #25333
    • ⏱ WebClient HTTP Request Timeout #25115
    • 👌 Support a RowMapper<T> for Java record classes #24695
    • Data binding for Java record classes #24391
    • Failure to bind a component of a form backing object using constructor binding causes the object to be null #24372
    • 📜 Concurrent access to ParsedSql cache in NamedParameterJdbcTemplate #24197
    • WebClient: wrap connection exceptions #23842
    • Extract MimeTypeUtils.ConcurrentLruCache and make it public #22789
    • 👍 WebSocket support with @EnableWebFlux #22587
    • ➕ Add kotlinx.serialization JSON support to Spring MVC #21188
    • ✅ Common API for MockMvc tests and for real HTTP tests #19647

    🍱 🐞 Bug Fixes

    • ⬆️ Upgrading from Boot 2.3.3 or 2.4-M1 to Boot 2.4-M2 uses 125mb heap in BitsCronField #25687
    • Copy httpHandlerDecorator in copy constructor for WebHttpHandlerBuilder #25656
    • 🤡 MockMvc does not correctly initialize the request for non-file mock Part uploads #25602
    • WebFlux application server add server.forward- Headers - Strategy = Framework RouterFunction endpoint 404 #25270

    📔 Documentation

    • 🛠 Fix typo in Regular Expression Pointcuts docs #25767
    • 🛠 Fix typo regarding Ordered interface in core-aop.adoc #25759
    • 🛠 Fix typo in websocket.adoc #25630
    • Eliminate unnecessary word in core-bean.adoc that causes repetition #25585
    • 📚 Publish documentation under reference/html folder #25071

    ⬆️ 🔨 Dependency Upgrades

    • ⬆️ Upgrade to RSocket 1.1 M2 #25729
    • ⬆️ Upgrade to Reactor 2020 RC1 #25728
    • ⬆️ Upgrade to Kotlin 1.4.0 #25617
    • ⬆️ Upgrade to Gradle 6.6 #25578
    • ⬆️ Upgrade to JUnit 5.7 #25527

    🍱 ❤️ Contributors

    🚀 We'd like to thank all the contributors who worked on this release!