v2026.09.11-beta

What's Changed

• Buildroot 2026.08: line bump, bluez backports retired, SSH key persistence by @mcfbytes in #150
• chore(deps): update mister-devel/distribution_mister digest to 8f0185b by @renovate[bot] in #153
• chore(deps): update morrownr/8821au-20210708 digest to 993ac0e by @renovate[bot] in #154
• chore(deps): update dependency kernel-rt-7.2 to v7.2.4 by @renovate[bot] in #156
• chore(deps): update dependency kernel-longterm-6.18 to v6.18.50 by @renovate[bot] in #155
• DE25: aarch64 stage-1 initramfs + qemu-system-aarch64 test leg (stage 1 becomes a fragment stack) by @mcfbytes in #152
• docs: verify stock release_20260907 against release_20250402 and our v2026.09.04-beta by @mcfbytes in #157
• firmware: ship the rtl8xxxu blobs stock release_20260907 added (RTL8710BU, RTL8192FU) by @mcfbytes in #158
• release: bump the stock reference pin to release_20260907 (two split volumes, joined) by @mcfbytes in #159
• userland: vendor stock 20260907's rewritten uartmode and S39usb-coldplug by @mcfbytes in #160
• wifi: add package/aic8800 (driver + firmware), delete seven mainline-covered forks by @mcfbytes in #163
• review fixes: inventory output dir, package-scan last-wins, name spelling, stale paths by @mcfbytes in #164
• Config.in: name the actual Buildroot pin (2026.08) in the aic8800 collision check by @mcfbytes in #165
• Reconcile fork-sync 2026-09: kernel patches and stock inventory by @mcfbytes in #161

Full Changelog: v2026.09.04-beta...v2026.09.11-beta