Support status for C++03 (std=c++03) in Boost [Version] on RHEL 9
Hello Boost Community, I am currently planning a large-scale migration of a legacy codebase from SourcePro Rogue Wave to Boost. Due to strict production requirements, we must maintain the -std=c++03 flag across environments: RedHat 9 (GCC 5.x) My Question: Is there any version of Boost, which can be considered the "Long Term Support" equivalent for C++03, for which Boost also release latest patch or security vulnerabilities or actively maintain that version? From older post/blogs, it seems Boost does not manage c++03 standard and provide support of latest standard of c++ only i.e. C++14 and so on. Thanks And Regards, Piyush
Piyush Anand wrote:
Hello Boost Community,
I am currently planning a large-scale migration of a legacy codebase from SourcePro Rogue Wave to Boost. Due to strict production requirements, we must maintain the -std=c++03 flag across environments: RedHat 9 (GCC 5.x)
My Question: Is there any version of Boost, which can be considered the "Long Term Support" equivalent for C++03, for which Boost also release latest patch or security vulnerabilities or actively maintain that version?
In short, no. We no longer support C++03 and we don't maintain old versions.
From older post/blogs, it seems Boost does not manage c++03 standard and provide support of latest standard of c++ only i.e. C++14 and so on.
The prevailing minimum requirement is still C++11, and GCC 5 with -std=c++11 is still supported by the majority of libraries. -std=c++03 is not, however.
I believe 1.83 was the last version that had any substantial C++03 support, but there were already many libraries in there that didn't. There haven't been any security backports to that, but I'm not aware of any security fixes in any of the libraries, so you may be okay there. Tom On Wed, Mar 25, 2026 at 6:07 AM Piyush Anand via Boost < boost@lists.boost.org> wrote:
Hello Boost Community,
I am currently planning a large-scale migration of a legacy codebase from SourcePro Rogue Wave to Boost. Due to strict production requirements, we must maintain the -std=c++03 flag across environments: RedHat 9 (GCC 5.x)
My Question: Is there any version of Boost, which can be considered the "Long Term Support" equivalent for C++03, for which Boost also release latest patch or security vulnerabilities or actively maintain that version?
From older post/blogs, it seems Boost does not manage c++03 standard and provide support of latest standard of c++ only i.e. C++14 and so on.
Thanks And Regards, Piyush _______________________________________________ Boost mailing list -- boost@lists.boost.org To unsubscribe send an email to boost-leave@lists.boost.org https://lists.boost.org/mailman3/lists/boost.lists.boost.org/ Archived at: https://lists.boost.org/archives/list/boost@lists.boost.org/message/OIHVCYV6...
participants (3)
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Peter Dimov -
Piyush Anand -
Tom Kent