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3de7250f2988e360764479fa590d299a649987c0 by Derek Mauro <dmauro@google.com>:

Make the SOVERSION fit into 16 bits to make the MacOS linker happy

PiperOrigin-RevId: 364939757

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dead27aa0734a89ccb25da807e08e61000a47f8f by Abseil Team <absl-team@google.com>:

Update `ABSL_ATTRIBUTE_UNUSED`'s documentation that `[[maybe_unused]]` in C++17 and up is now the preferred usage solution.

Also document why we can't update `ABSL_ATTRIBUTE_UNUSED` to use `[[maybe_unused]]` (differences in positioning requirements).

PiperOrigin-RevId: 364900016

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0baf1b01dc9a2b5f9869ff5a52a1cf7a032055a3 by Abseil Team <absl-team@google.com>:

Slightly weaken the spec for `absl::string_view::compare` to match C++17.

The Abseil-specific implementation provides a stronger guarantee than required by `std::string_view`, returning +1, 0, or -1.  When `absl::string_view` is an alias for `std::string_view`, these are only guaranteed to be positive, zero, and negative.  Portable code should not depend on the stronger guarantee.

PiperOrigin-RevId: 364846419
GitOrigin-RevId: 3de7250f2988e360764479fa590d299a649987c0
Change-Id: I7c74004fc38c9f5eaad5b104a993b79518497c5b