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Key	English	Chinese (Simplified Han script)
	Release 1.83.0 - Major update	版本 1.83.0 - 重大更新
	Added `boost::concurrent_flat_map`, a fast, thread-safe hashmap based on open addressing.	新增基于开放寻址的快速线程安全哈希映射容器 `boost::concurrent_flat_map` 。
	Sped up iteration of open-addressing containers.	提升开放寻址容器的迭代性能。
	In open-addressing containers, `erase(iterator)`, which previously returned nothing, now	在开放寻址容器中，原无返回值的 `erase(iterator)` 方法，现在
	returns a proxy object convertible to an iterator to the next element. This enables the typical `it = c.erase(it)` idiom without incurring any performance penalty when the returned proxy is not used.	返回一个可转换为下一元素迭代器的代理对象。此改进支持典型的 `it = c.erase(it)` 编程范式，且当未使用返回的代理对象时不会产生任何性能开销。
	Release 1.82.0 - Major update	版本 1.82.0 - 重大更新
	{cpp}03 support is planned for deprecation. Boost 1.84.0 will no longer support	计划弃用 C{plus}{plus}03 支持。Boost 1.84.0 将不再支持
	{cpp}03 mode and {cpp}11 will become the new minimum for using the library.	C{plus}{plus}03 模式，C{plus}{plus}11 将成为使用该库的最低要求。
	Added node-based, open-addressing containers	新增基于节点的开放寻址容器
	`boost::unordered_node_map` and `boost::unordered_node_set`.	`boost::unordered_node_map` 与 `boost::unordered_node_set`。
	Extended heterogeneous lookup to more member functions as specified in	将异构查找功能扩展至更多成员函数
	https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2363r5.html[P2363].	（根据https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2363r5.html[P2363] 规范）。
	Replaced the previous post-mixing process for open-addressing containers with	取代开放寻址容器原有的后混合处理流程（采用
	a new algorithm based on extended multiplication by a constant.	基于常量扩展乘法的新算法）。
	Fixed bug in internal emplace() impl where stack-local types were not properly	修复内部 emplace() 实现中存在的缺陷：
	constructed using the Allocator of the container which breaks uses-allocator construction.	该缺陷曾导致栈局部类型未能使用容器的分配器进行正确构造，从而违反分配器感知构造规范。
	Release 1.81.0 - Major update	版本 1.81.0 - 重大更新
	Added fast containers `boost::unordered_flat_map` and `boost::unordered_flat_set`	新增基于开放寻址的快速容器`boost::unordered_flat_map` and `boost::unordered_flat_set`。
	based on open addressing.	(基于开放寻址的)
	Added CTAD deduction guides for all containers.	为所有容器添加 CTAD 推导指引。
	Added missing constructors as specified in https://cplusplus.github.io/LWG/issue2713[LWG issue 2713].	补充 https://cplusplus.github.io/LWG/issue2713[LWG 问题 2713] 中要求的缺失构造函数。
	Release 1.80.0 - Major update	版本 1.80.0 - 重大更新
	Refactor internal implementation to be dramatically faster	重构内部实现以显著提升性能
	Allow `final` Hasher and KeyEqual objects	允许使用 `final` 修饰的 Hasher 和 KeyEqual 对象
	Update documentation, adding benchmark graphs and notes on the new internal	更新文档，新增性能基准对比图及关于新内部数据结构的说明
	data structures	（数据结构）
	Release 1.79.0	版本 1.79.0
:110	Improved {cpp}20 support:	增强 C{plus}{plus}20 标准兼容性：
	All containers have been updated to support heterogeneous `count`, `equal_range` and `find`. All containers now implement the member function `contains`. ** `erase_if` has been implemented for all containers.	所有容器均已完成升级，支持异构查找操作 `count` 、 `equal_range` 及 `find` 。所有容器现均已实现成员函数 `contains` 。 ** 所有容器均已实现 `erase_if` 功能。
	Improved {cpp}23 support:	增强 C{plus}{plus}23 标准兼容性：
	** All containers have been updated to support heterogeneous `erase` and `extract`.	** 所有容器均已完成升级，支持异构版本的 `erase` 与 `extract` 操作。

	English	Chinese (Simplified Han script)	Actions
	Optimized `emplace()` for `k,v` arguments on map containers to delay constructing the object until it is certain that an element should be inserted. This optimization happens when the map's `key_type` is move constructible or when the `k` argument is a `key_type`.	优化 map 容器的 `emplace()` 对 `k,v` 参数的处理：将对象构造延迟到确认需要插入元素时执行。此优化在映射的 `key_type` 可移动构造或 `k` 参数为 `key_type` 类型时生效。
	Fixed support for allocators with `explicit` copy constructors ({github-pr-url}/234[PR#234^]).	修复对含 `explicit` 复制构造函数的分配器的支持(https://github.com/boostorg/unordered/pull/234[PR#234])。
	Fixed bug in the `const` version of `unordered_multimap::find(k, hash, eq)` ({github-pr-url}/238[PR#238^]).	修复 `unordered_multimap::find(k, hash, eq)` 的 `const` 版本中的缺陷(https://github.com/boostorg/unordered/pull/238[PR#238])。
	Release 1.84.0 - Major update	版本 1.84.0 - 重大更新
	Added `boost::concurrent_flat_set`.	新增 `boost::concurrent_flat_set` 。
	Added debug-mode mechanisms for detecting illegal reentrancies into	新增调试模式机制，用于检测用户代码对
	a concurrent container from user code.	并发容器的非法重入操作。
	Added Boost.Serialization support to all containers and their (non-local) iterator types.	为所有容器及其（非本地）迭代器类型添加 Boost.Serialization 支持。
	only work with C++11 onwards.	仅支持 C{plus}{plus}11 及以上版本。
	Release 1.83.0 - Major update	版本 1.83.0 - 重大更新
	Added `boost::concurrent_flat_map`, a fast, thread-safe hashmap based on open addressing.	新增基于开放寻址的快速线程安全哈希映射容器 `boost::concurrent_flat_map` 。
	Sped up iteration of open-addressing containers.	提升开放寻址容器的迭代性能。
	In open-addressing containers, `erase(iterator)`, which previously returned nothing, now	在开放寻址容器中，原无返回值的 `erase(iterator)` 方法，现在
	Release 1.82.0 - Major update	版本 1.82.0 - 重大更新
	Added node-based, open-addressing containers	新增基于节点的开放寻址容器
	constructed using the Allocator of the container which breaks uses-allocator construction.	该缺陷曾导致栈局部类型未能使用容器的分配器进行正确构造，从而违反分配器感知构造规范。
	Added fast containers `boost::unordered_flat_map` and `boost::unordered_flat_set`	新增基于开放寻址的快速容器`boost::unordered_flat_map` and `boost::unordered_flat_set`。
	based on open addressing.	(基于开放寻址的)
	Added CTAD deduction guides for all containers.	为所有容器添加 CTAD 推导指引。
	Added missing constructors as specified in https://cplusplus.github.io/LWG/issue2713[LWG issue 2713].	补充 https://cplusplus.github.io/LWG/issue2713[LWG 问题 2713] 中要求的缺失构造函数。
	Release 1.80.0 - Major update	版本 1.80.0 - 重大更新
	Update documentation, adding benchmark graphs and notes on the new internal	更新文档，新增性能基准对比图及关于新内部数据结构的说明
	data structures	（数据结构）
	Release 1.79.0	版本 1.79.0
	Switch to Fibonacci hashing.	切换至斐波那契哈希算法。
	Update documentation to be written in AsciiDoc instead of QuickBook.	将文档编写格式从 QuickBook 切换为 AsciiDoc。
	Release 1.67.0	版本 1.67.0
	** Use `boost::to_address`, which has the proposed {cpp}20 semantics, rather than the old custom implementation.	** 使用具有 C{plus}{plus}20 提案语义的 `boost::to_address` ，来替代原有的自定义实现。
	Add `element_type` to iterators, so that `std::pointer_traits`	向迭代器添加 `element_type` 类型定义，以支持 `std::pointer_traits` 的
	Use `std::piecewise_construct` on recent versions of Visual {cpp},	在新版 Visual C{plus}{plus} 及

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