v2.5.9-rc2

What's Changed

• Bump version number to v2.5.9 by @guhetier in #5986
• [CP] Add support for multiprocess sharing + Fix a QTIP xdp bug (#5798) (#5747) (#5395) by @ProjectsByJackHe in #6050
• [CP] Fix TLS fragment tests (#6066) by @guhetier in #6089
• [CP] Added Bound check for UDP length in XDP datapath (#6057) by @guhetier in #6081
• [CP] Virtual buffer overflow fix (#6022) by @guhetier in #6083
• [CP] Fix QuicOperationFree using CXPLAT_FREE on pool-allocated QUIC_RECV_CHUNK (#5881) by @guhetier in #6085
• [CP] Default Windows CI builds to Visual Studio 18 2026 (#6100) by @guhetier in #6104
• Remove CXPLAT_FRE_ASSERT around QuicCryptoFrameEncode by @guhetier in #6102

Pre-release created to validate the Fedora 44 packages

Full Changelog: v2.5.8...v2.5.9-rc2