support boost 1.87

[miyanyan]

hi, asio removed some previously deprecated facilities, see https://www.boost.org/doc/libs/1_87_0/doc/html/boost_asio/history.html

I found this when I update vcpkg's boost to 1.87

I can create a pr but I don't know what is the minimum boost version you support

if only support boost>=1.66.0(vcpkg's boost version start from 1.66.0), the changes will be easier

[Lord-Kamina]

I wish you better luck than the other stale issues on this topic which have been stale for 4 years,

https://github.com/microsoft/cpprestsdk/issues/1323

[dcriv]

There is this in progress meanwhile: https://github.com/dcriv/cpprestsdk/tree/support_boost_1.87_%231815

[miyanyan]

There is this in progress meanwhile: https://github.com/dcriv/cpprestsdk/tree/support_boost_1.87_%231815

It seems should support boost >= 1.58 in this comment https://github.com/microsoft/cpprestsdk/pull/1339#discussion_r383026727

so some functions like asio::post should not be used directly, and this requires a lot of work

[jmarrec]

The boost >= 1.58 in https://github.com/microsoft/cpprestsdk/pull/1339#discussion_r383026727 was because of Ubuntu 16.04, which is officially EOL since April 30th 2021. Ubuntu 18.04 is EOL since 31 May 2023.

So I don't think there's a need to support such old versions

here's a table I put together that lists the EOL + Boost version in launchpad

Ubuntu	Codename	EOL	Boost
16.04	Xenial	2021-04-30	1.58.0
18.04	Bionic	2023-05-31	1.65.1
20.04	Focal	June 2025	1.71.0
22.04	Jammy	April 2027	1.74.0
24.04	Noble	April 2029	1.83.0

If I'm understanding correctly, boost 1.66.0+ has these free functions: https://github.com/boostorg/asio/commit/b60e92b13ef68dfbb9af180d76eae41d22e19356

[miyanyan]

The boost >= 1.58 in #1339 (comment) was because of Ubuntu 16.04, which is officially EOL since April 30th 2021. Ubuntu 18.04 is EOL since 31 May 2023.

So I don't think there's a need to support such old versions

If I'm understanding correctly, boost 1.66.0+ has these free functions: [boostorg/asio@b60e92b](https://github.com/boostorg/asio/commit/b60e92b13ef68dfbb9af180d76eae41d22e193

Only 1.66+ versions supported is better, but the maintainers may not approve such pr ...