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By Zayden R., September 11, 2026
GCC 13.5 has been released, addressing more than 265 bugs, and concludes the GCC 13 series. Engineers using GCC 13 in production should consider upgrading, as the branch is now closed for further development.
The GNU Compiler Collection (GCC) 13.5 has been officially released, boasting more than 265 bug fixes and marking the final point release for the GCC 13 series. This update is particularly significant for engineers and developers who have been relying on GCC 13 since its debut over three years ago. With the GCC 13 branch now closed for further development, users are encouraged to transition to newer versions, such as GCC 16, which was released earlier this year.
When GCC 13 stable was introduced in April 2023, it brought substantial enhancements, including AMD Zen 4 'znver4' support, expanded Intel CPU targets, and a new Modula-2 language front-end. It also delivered additional C23 and C++23 feature support, making it a robust choice for developers at the time. However, as the software landscape continues to evolve, the need for bug fixes and improvements remains constant.
The 265+ bug fixes included in GCC 13.5 address a variety of issues, albeit many of them being low-impact. This release serves as an essential maintenance update for those still operating on the GCC 13 branch. However, it's clear that the focus should now shift to the more contemporary GCC 16, which offers newer features and improvements.
For engineers tasked with maintaining systems that currently use GCC 13, this update is a call to action. It's time to review the existing setups and plan for an upgrade to the latest stable version, ensuring continued support and feature enhancements. The detailed list of fixes and download information is available through the official GCC mailing list announcement.