The GNU C Library is moving from Sourceware

GNU C Library maintainer Carlos O’Donell has announced
that the project will be moving its core services away from Sourceware in favor of services hosted
at the Linux Foundation.

While it was clear to the GNU Toolchain leadership that
requirements were coming to improve the toolchain cyber-security
posture, these requirements were not clear to all project
developers. As part of receiving this feedback we have worked to
document and define a secure development policy for glibc and at a
higher level the GNU Toolchain. While Sourceware has started
making some critical technical changes, the GNU Toolchain still
faces serious, systemic concerns about securing a global, highly
available service and building a sustainable, diverse sponsorship
model.

This has been a long-running discussion; see this 2022 article for some background.