Editing XSS (section)

== 2005 Builds ==
{| class="wikitable sortable" style="width:100%;"
! Build Date !! XSS Build !! SDK Build !! Kernel Version !! Video Walkthrough !! Notes !! ROM Compatibility
|-
| Jan 2005 || 1242.0 || 1242.0 || 2.0.1242.0 || Coming Soon || Final Alpha → EV transition build; new controller activation and XBDM hooks. || xenon-a / xenon-sd
|-
| Jan 2005 || 1265.0 || 1265.0 || 2.0.1265.0 || Coming Soon || First EV1 public SDK; significant kernel cleanup. || xenon-r1 (WN1)
|-
| Jan 2005 || 1281.0 || 1281.0 || 2.0.1281.0 || Coming Soon || Graphics HAL updates; Direct3D test driver added. || xenon-r1 (WN1)
|-
| Feb 2005 || 1300.0 || 1300.0 || 2.0.1300.0 || Coming Soon || Audio subsystem re-architecture; Dolby encoder enabled. || xenon-r1 (WN1)
|-
| Feb 2005 || 1332.0 || 1332.0 || 2.0.1332.0 || Coming Soon || Beta hardware thermal tuning; network stack migrated. || xenon-r1 (WN1)
|-
| Feb 2005 || 1365.0 || 1365.0 || 2.0.1365.0 || Coming Soon || New bootloader interface; factory signature test. || xenon-r1 (WN1)
|-
| Mar 2005 || 1408.0 || 1408.0 || 2.0.1408.0 || Coming Soon || Network test kernel; GPU microcode update. || xenon-r1 (WN1)
|-
| Mar 2005 || 1428.0 || 1428.0 || 2.0.1428.0 || Coming Soon || Adds Rich Presence API; HUD flicker fix. || xenon-r1 (WN1)
|-
| Mar 2005 || 1445.0 || 1445.0 || 2.0.1445.0 || Coming Soon || SDK feature expansion; first appearance of retail-mode toggles. || xenon-r1 (WN1)
|-
| Apr 2005 || 1500.0 || 1500.0 || 2.0.1500.0 || Coming Soon || Major SDK refactor; XShell 1.0 interface prototype. || xenon-r1 (WN1)
|-
| Apr 2005 || 1519.0 || 1519.0 || 2.0.1519.0 || Coming Soon || Video encoder improvements; guide performance pass. || xenon-r1 (WN1)
|-
| Apr 2005 || 1528.0 || 1528.0 || 2.0.1528.0 || Coming Soon || Early Xenon retail candidate kernel for test labs. || xenon-r1 (WN1)
|-
| May 2005 || 1601.0 || 1601.0 || 2.0.1601.0 || Coming Soon || Initial E3 demo branch; SDK “Blades” theme prototype. || xenon-r1 (WN1)
|-
| May 2005 || 1616.7 || 1616.7 || 2.0.1616.7 || Coming Soon || Factory kernel for WN1 EV3/EV4 hardware; stability baseline. || xenon-r1 (WN1)
|-
| May 2005 || 1630.0 || 1630.0 || 2.0.1630.0 || Coming Soon || Internal integration of performance counters and debug logging. || xenon-r1 (WN1)
|-
| Jun 2005 || 1640.0 || 1640.0 || 2.0.1640.0 || Coming Soon || Beta-preview hardware enablement; new DVD-emu module. || xenon-r1 (WN1)
|-
| Jun 2005 || 1655.0 || 1655.0 || 2.0.1655.0 || Coming Soon || Network stack cleanup and controller pairing update. || xenon-r1 (WN1)
|-
| Jun 2005 || 1672.0 || 1672.0 || 2.0.1672.0 || Coming Soon || Major SDK QFE; improved thread scheduler. || xenon-r1 (WN1)
|-
| Jun 2005 || 1690.0 || 1690.0 || 2.0.1690.0 || Coming Soon || Test kit manufacturing kernel; USB device stack update. || xenon-r1 (WN1)
|-
| Jun 2005 || 1700.0 || 1700.0 || 2.0.1700.0 || Coming Soon || Build used for E3 demos; first to include “Blade” dashboard assets. || xenon-r1 (WN1)
|-
| Jul 2005 || 1714.0 || 1714.0 || 2.0.1714.0 || Coming Soon || Factory diagnostics; added new NAND bootloader chain. || xenon-r1 (WN1)
|-
| Jul 2005 || 1721.0 || 1721.0 || 2.0.1721.0 || Coming Soon || Debug memory viewer; compiler sync to retail branch. || xenon-r1 (WN1)
|-
| Jul 2005 || 1740.0 || 1740.0 || 2.0.1740.0 || Coming Soon || Dashboard bug-fix build; new USB enumeration. || xenon-r1 (WN1)
|-
| Jul 2005 || 1760.0 || 1760.0 || 2.0.1760.0 || Coming Soon || Added partial retail-mode configuration to test kits. || xenon-r1 (WN1)
|-
| Aug 2005 || 1803.0 || 1803.0 || 2.0.1803.0 || Coming Soon || GPU microcode v7 update; improved framebuffer timing. || xenon-r2 (WN2)
|-
| Aug 2005 || 1825.0 || 1825.0 || 2.0.1825.0 || Coming Soon || New system update routine; better heat-throttling curve. || xenon-r2 (WN2)
|-
| Aug 2005 || 1840.0 || 1840.0 || 2.0.1840.0 || Coming Soon || Retail preparation; kernel signature logic finalized. || xenon-r2 (WN2)
|-
| Aug 2005 || 1873.0 || 1873.0 || 2.0.1873.0 || Coming Soon || Final XDK August build; side-car DVD emulator support. || xenon-r2 (WN2)
|-
| Sep 2005 || 1880.0 || 1880.0 || 2.0.1880.0 || Coming Soon || Production-ready build for mass-manufacturing test kits. || xenon-r2 (WN2)
|-
| Sep 2005 || 1881.0 || 1881.0 || 2.0.1881.0 || Coming Soon || Last internal pre-launch test pass. || xenon-r2 (WN2)
|-
| Sep 2005 || 1888.0 || 1888.0 || 2.0.1888.0 || Coming Soon || Retail base kernel (launch). || xenon-r2 (WN2)
|-
| Oct 2005 || 1900.0 || 1900.0 || 2.0.1900.0 || Coming Soon || Debug symbol refresh; retail certification prep. || xenon-r2 (WN2)
|-
| Oct 2005 || 1902.0 || 1902.0 || 2.0.1902.0 || Coming Soon || Factory QA test; HDD and DVD interface validation. || xenon-r2 (WN2)
|-
| Nov 2005 || 2241.0 || 2241.0 || 2.0.2241.0 || Coming Soon || Take-Home release candidate; launch promo SDK. || xenon-r2 (WN2)
|-
| Nov 2005 || 2255.0 || 2255.0 || 2.0.2255.0 || Coming Soon || Take-Home kernel; minor dashboard fixes. || xenon-r2 (WN2)
|-
| Nov 2005 || 2271.0 || 2271.0 || 2.0.2271.0 || Coming Soon || Early retail QFE. || xenon-r2 (WN2)
|-
| Nov 2005 || 2280.0 || 2280.0 || 2.0.2280.0 || Coming Soon || Localization and voice chat fixes. || xenon-r2 (WN2)
|-
| Dec 2005 || 2500.0 || 2500.0 || 2.0.2500.0 || Coming Soon || Manufacturing kernel for launch units. || xenon-r2 (WN2)
|-
| Dec 2005 || 2527.0 || 2527.0 || 2.0.2527.0 || Coming Soon || Day-1 retail update (launch dashboard revision). || xenon-r2 (WN2)
|-
| Dec 2005 || 2531.0 || 2531.0 || 2.0.2531.0 || Coming Soon || Minor post-launch bug fixes; DVD region check fix. || xenon-r2 (WN2)
|-
| Dec 2005 || 2540.0 || 2540.0 || 2.0.2540.0 || Coming Soon || Final 2005 main branch external release. || xenon-r2 (WN2)
|}