Apache Olingo 4.3.0 发布，支持 OData 4.0

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　　Apache Olingo 4.3.0 发布了，更新内容如下：
　　Bug

• 　　[OLINGO-931] - $select does not work with JsonSerializer
  
• 　　[OLINGO-939] - Content-Type wrong in error response in server-core-ext module
  
• 　　[OLINGO-960] - Failure to find as Alias shound not throw an exception
  
• 　　[OLINGO-964] - Cast type (typeFilterOnCollection) not taken into account while expanding a collection
  
• 　　[OLINGO-966] - Parse of filter with guild parameter fails
  
• 　　[OLINGO-967] - batch request rollback is not working properly
  
• 　　[OLINGO-977] - Missing call "writer.writeStartDocument" in ODataXmlSerializer.complexCollection()
  
• 　　[OLINGO-980] - INVALID_NULL_ANNOTATION when update navigation property to null
  
• 　　[OLINGO-981] - Binding operation null on to one
  
• 　　[OLINGO-982] - Metadataparser does not set correct value for Nullable attriibute of Navigation Property
  
• 　　[OLINGO-984] - Client-Proxy: collection of enums as property not supported
  
• 　　[OLINGO-987] - V4: Serializer can´t resolve ESCompCollComp?$format=json
  
• 　　[OLINGO-988] - V4: ExpandOption created by the deserializer contains duplicates in deep instert cases
  
• 　　[OLINGO-991] - OData4HttpHandler does not honor split while processing request
  
• 　　[OLINGO-1002] - EDMParameter type is missing from TargetType
  
• 　　[OLINGO-1003] - Binary content in batch requests gets corrupted
  
• 　　[OLINGO-1015] - Wrong batch content header handling
  

　　Improvement

• 　　[OLINGO-567] - Support odata.metadata=full on server side serialization
  
• 　　[OLINGO-936] - V4 code cleanup epic
  
• 　　[OLINGO-954] - Send OData Version Header with every Response to be more specification compliant
  
• 　　[OLINGO-979] - V4: Make ODataApplicationException translatable
  
• 　　[OLINGO-989] - V4: Minor Client enhancements
  
• 　　[OLINGO-990] - V4: Allow custom Headers for metadata requests
  
• 　　[OLINGO-1004] - V4: Clean Up FIT module
  

　　New Feature

• 　　[OLINGO-935] - V4 $apply support
  
• 　　[OLINGO-995] - V4: Support Http HEAD method
  
• 　　[OLINGO-1009] - Provide serilization support for $levels with $expand
  

　　Task

• 　　[OLINGO-993] - V4: Provide a beta release via the maven nexus
  
• 　　[OLINGO-997] - Make release build work with Java 8
  

　　完整更新列表
　　点此查看发行说明和使用文档
　　下载地址：

• 　　http://olingo.apache.org/doc/odata4/download.html
  

　　Apache Olingo 是个 Java 库，用来实现 Open Data Protocol (OData)。 Apache Olingo 包括服务客户端和 OData 服务器方面。Apache Olingo 扩展部分支持 JPA 持久性或者注释 bean 类。