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relnotes: info about breaking change

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Andrzej Krzemienski
2022-06-22 22:56:45 +02:00
parent 85ebe0a2ed
commit 938806c876
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doc/91_relnotes.qbk
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@ -13,7 +13,7 @@
[heading Boost Release 1.80]
* Added specializations for `std::hash<boost::opitonal<T>>`. This fixes [@https://github.com/boostorg/optional/issues/55 issue #55].
* [*Breaking change:] Added specializations for `std::hash<boost::opitonal<T>>`. This fixes [@https://github.com/boostorg/optional/issues/55 issue #55]. You may get compiler errors when your program provides specializations for `std::hash<boost::optional<T>>`. If this happens, define macro `BOOST_OPTIONAL_CONFIG_DO_NOT_SPECIALIZE_STD_HASH` to suppress the specializations of `std::hash` in this library.
[heading Boost Release 1.79]