Copied from a post at Board4All.cz...
Pre-Milestone 1 // 41 builds
6.1.5025.winmain.050111-2030
6.1.5041.winmain.050302-2030
6.1.5048.winmain.050401-0536
6.1.5071.winmain.050605-2010
6.1.5086.winmain.050625-1730
6.1.5112.winmain.050720-1600
6.1.5219.winmain.050830-2010
6.1.5729.0.winmain.060914-1613
6.1.6410.0.fbl_refactor_dev(jschwart).070409-1035
6.1.6415.0.debuggers(dbg).070404-1234
6.1.6418.0.debuggers(dbg).070404-1255
6.1.6429.?.fbl_multimedia_media.070514-1730
6.1.6435.1.winmain.070524-1820
6.1.6440.1.debuggers(dbg).070525-1751
6.1.6441.1.winmain.070606-2215
6.1.6442.1.winmain.070608-1835
6.1.6443.1.winmain.070611-1855
6.1.6444.1.winmain.070612-1905
6.1.6445.1.winmain.070709-1410
6.1.6446.1.winmain.070719-0642
6.1.6447.1.winmain.070719-2115
6.1.6448.1.winmain.070723-1704
6.1.6459.1.fbl_shell_dex.070826-1730
6.1.6469.1.fbl_find_dev.
6.1.6475.1.fbl_wlk_dtmse_11000.071008-1226
6.1.6477.1.winmain.071010-1835
6.1.6480.1.fbl_srv_powershell_ctp(srvbld).071017-1751
6.1.6481.1.winmain.071018-1917
6.1.6482.1.winmain.071019-2033
6.1.6483.1.winmain.071022-1900
6.1.6484.1.winmain.071023-1954
6.1.6486.1.winmain.071025-2058
6.1.6487.1.winmain.071026-2206
6.1.6487.1.winmain.071027-1600
6.1.6488.1.winmain.071029-2152
6.1.6490.1.winmain.071031-1918
6.1.6491.1.winmain.071102-2244
6.1.6492.1.winmain.071105-1715
6.1.6493.1.winmain.071106-1743
6.1.6499.1.fbl_security_bugfix(sepbld-s).071120-0135
6.1.6507.1.winmain_longhorn(wmbla).071113-1716
Milestone 1 // 24 builds - 1 leak
6.1.6516.1.fbl_dox_dev_ihvs.080109-1848
6.1.6516.1.fbl_dox_dev_ihvs.080109-1928
6.1.6518.1
6.1.6519.1.winmain.071220-1525 // Leaked June 10, 2008 (x86)
6.1.6521.1.fbl_kernel_platarch.080107-1800
6.1.6522.0.winmain.071223-1309
6.1.6526.1.winmain.080110-1645
6.1.6531.1.winmain.080118-1730
6.1.6534.1.winmain.080128-1953
6.1.6535.1.winmain.080129-1830
6.1.6536.?.fbl_tools_phoenix(corevc).080215-1330-LDDM
6.1.6547.1.winmain.080213-1740
6.1.6550.1.winmain.080218-1737
6.1.6551.1.winmain.080219-1748
6.1.6558.1.winmain.080228-1838
6.1.6566.1.winmain.080310-1902
6.1.6568.1.fbl_wdk_build(dasmit).080318-1440
6.1.6568.1.winmain.080312-1858
6.1.6570.1.winmain.080314-1850
6.1.6574.1.winmain.080???-????
6.1.6577.1.winmain.080326-1841
6.1.6581.1.winmain.080401-1900
6.1.6585.?.winmain.080407-1714
6.1.6585.1.fbl_srv_powershell_ctp.080411-1634
Milestone 2 // 2 builds
6.1.6589.1.winmain_win7m2.080420-1634 // demonstrated on D6
6.1.6608.0.winmain_win7m2.080511-1400
Milestone 3 // 49 builds - 2 leaks
6.1.6720.1.fbl_dox_dev_ihvs.080603-2145
6.1.6720.1.fbl_dox_dev_ihvs.080603-2149
6.1.6721.1.debuggers(dbg).080908-1333
6.1.6723.1.winmain.080603-1835
6.1.6724.1.winmain.080604-1840
6.1.6725.1.winmain.080605-1945
6.1.6726.1.winmain.080606-1843
6.1.6726.1.fbl_dox_dev_ihvs.080609-2026
6.1.6726.1.fbl_dox_dev_ihvs.080609-2033
6.1.6727.1.winmain.080609-1820
6.1.6727.1.fbl_dox_dev_ihvs.080611-0004
6.1.6727.1.fbl_dox_dev_ihvs.080611-0008
6.1.6727.1.fbl_dox_dev_ihvs.080611-0027
6.1.6727.1.fbl_dox_dev_ihvs.080611-0032
6.1.6730.1.winmain.080612-1840
6.1.6730.1.fbl_dox_dev_ihvs.080614-0511
6.1.6730.1.fbl_dox_dev_ihvs.080614-0543
6.1.6731.1.winmain.080613-2011
6.1.6733.1.winmain.080617-1830
6.1.6734.1.winmain.080618-2101
6.1.6735.1.winmain.080619-2114
6.1.6736.1.winmain.080620-2200
6.1.6738.1.winmain.080623-1620
6.1.6738.1.fbl_security_bugfix(marcbar).070702-1455
6.1.6739.1.winmain.080624-1820
6.1.6740.1.winmain.080625-1813
6.1.6746.1.winmain.080707-1854
6.1.6754.0.winmain.080718-1839
6.1.6756.0
6.1.6759.0.FBL_FUN_DIAG_DEV(josesua).080807-0822
6.1.6761.0.fbl_wexpartners_mc(dcohen).080731-1456
6.1.6762.1803.winmain_wtr_act60(jayanr).090323-1915
6.1.6762.0.winmain.080730-1747
6.1.6764.0.winmain.080801-0505
6.1.6764.0.fbl_wexpartners_mc(shyams).080805-1551
6.1.6765.0.winmain.080804-1845
6.1.6768.0.fbl_security_bugfix(nide).080811-1231
6.1.6768.0.FBL_SECURITY_BUGFIX(nide).080811-1458
6.1.6769.0.winmain.080811-1810
6.1.6769.0.fbl_security_bugfix(dlisley).080814-1553
6.1.6769.0.fbl_security_bugfix(dlinsley).080814-1555
6.1.6771.0.winmain.080817-0833
6.1.6772.0.winmain.080818-1728
6.1.6773.0.winmain.080819-1900
6.1.6775.0.winmain.080821-0042
6.1.6776.?.fbl_srv.080823-0???
6.1.6780.0.winmain_win7m3.080829-1900 // Leaked February 15, 2009 (x86)
6.1.6801.0.winmain_win7m3.080913-2030 // Leaked October 29, 2008 (both variants)
6.1.6801.4107.winmain_win7m3.081020-1655
Pre-Beta 1 // 61 builds - 2 leaks
6.1.6901.0.winmain.080828-1855
6.1.6902.0.winmain.080829-1810
6.1.6904.0.winmain.080904-1717
6.1.6904.0.fbl_dox_dev_ihvs.080908-1556
6.1.6905.0.winmain.080905-1733
6.1.6908.0.fbl_fun_global_m1(sunggch).080422-1716
6.1.6912.0.fbl_security_bugfix(dacostan).080918-1720
6.1.6912.0.fbl_security_bugfix(dacostan).080918-1756
6.1.6914.0.fbl_dox_dev_ihvs.081001-1528
6.1.6914.0.fbl_dox_dev_ihvs.081001-2123
6.1.6914.0.fbl_dox_dev_ihvs.081001-2138
6.1.6914.0.fbl_dox_dev_ihvs.081001-2209
6.1.6914.0.fbl_dox_dev_ihvs.081001-2251
6.1.6914.0.fbl_dox_dev_ihvs.081001-2254
6.1.6914.0.fbl_dox_dev_ihvs.081006-0105
6.1.6914.0.fbl_dox_dev_ihvs.081006-1212
6.1.6916.?.winmain.080924-1557
6.1.6917.?.winmain.080925-1915
6.1.6919.?.fbl_fun_diag_dev(gaurava).080118-1456
6.1.6920.0.winmain.081001-1846
6.1.6920.?.fbl_dgt_dev2.081006-1730
6.1.6920.0.fbl_dgt_dev2_sdknovember08(bld4act).081016-1627
6.1.6922.0.fbl_fun_diag_dev(wedsonaf).080818-1825
6.1.6925.0.fbl_dox_dev_ihvs.081009-1812
6.1.6926.?.winmain.081009-1855
6.1.6926.0.fbl_uiplat_dev1(alexlop).081013-1037
6.1.6926.0.fbl_dox_dev_ihvs.081016-1746
6.1.6926.0.fbl_dox_dev_ihvs.081026-2150
6.1.6928.0.fbl_tools_developer(amitrao).081111-1608
6.1.6930.?.fbl_multimedia_media.081016-1750
6.1.6930.0.fbl_multimedia_media(bld4act).081019-0916
6.1.6930.0.fbl_multimedia_media(bld4act).081019-0926
6.1.6931.0.fbl_security_bugfix(jscottm).081020-1655
6.1.6931.0.fbl_security_bugfix(jscottm).081020-1735
6.1.6932.?.winmain.081017-1835
6.1.6932.?.fbl_shell_dex.081020-1755
6.1.6933.0.winmain.081020-1842
6.1.6934.?.winmain.081021-1817
6.1.6935.?.winmain.081022-1857
6.1.6935.0.fbl_multimedia_media(bld4act).081026-0917
6.1.6936.0.winmain.081023-1800 // Leaked December 10, 2008 (x64)
6.1.6936.0.fbl_net_rpc.081028-2000
6.1.6937.?.winmain.081027-1805
6.1.6937.?.fbl_whenet_devbugfix.081028-1900
6.1.6938.0.fbl_multimedia_media(bld4act).081031-0928
6.1.6940.?.fbl_wexpartners_mc.081102-1800
6.1.6941.0.winmain.081101-1740
6.1.6941.0.fbl_srv.081102-0300
6.1.6944.0.fbl_fun_diag_dev(sanketp).081028-1927
6.1.6944.0.fbl_multimedia(codecna).081104-1358
6.1.6945.0.?.081106-1833
6.1.6948.?.winmain.081111-1905
6.1.6948.?.fbl_shell_dex.081112-1755
6.1.6949.0.(fbl_srv_powershell_ctp(srvbld).081105-1651
6.1.6951.0.winmain.081114-2042
6.1.6953.?.winmain.081118-1923
6.1.6953.0.FBL_SECURITY(nide).081119-1801
6.1.6954.?
6.1.6956.0.winmain.081122-1150 // Leaked December 4, 2008 (x86)
6.1.6965.?
6.1.6995.0.winmain.081202-1120
Beta 1 // 1 build - 1 leak
6.1.7000.0.winmain_win7beta.081212-1400 // Leaked December 27, 2008 (x86) & January 7, 2009 (x64); officially released January 9, 2009 (both variants)
Pre-RC 1 // 36 builds - 2 leaks
6.1.7003.?.winmain.081201-????
6.1.7004.0.?.081203-1830
6.1.7010.0.winmain.081211-1822
6.1.7012.0.winmain.081215-1810
6.1.7014.0.winmain.081217-1720
6.1.7015.0.winmain.081218-1724
6.1.7015.?.fbl_multimedia_media.090104-1750
6.1.7015.0.fbl_security_bugfix(sepbld-s).090105-1037
6.1.7016.0.winmain.090105-1500
6.1.7017.0.fbl_multimedia_media(bld4act).090111-0916
6.1.7022.0.winmain.090115-1850 // Leaked February 8, 2009 (x86) & March 2, 2009 (x64)
6.1.7024.0.winmain.090119-1833
6.1.7025.0.winmain.090120-1850
6.1.7026.0.winmain.090121-1901
6.1.7028.?.fbl_srv_cluster.090125-1930
6.1.7032.0.winmain.090129-1812
6.1.7033.0.winmain.090130-1810
6.1.7033.?.fbl_kernel_vm_dev(mikekol).090203-1215
6.1.7034.0.winmain.090202-1920
6.1.7035.0.winmain.090203-1755
6.1.7036.0.winmain.090204-1915
6.1.7037.0.winmain.090205-1828
6.1.7038.0.winmain.090206-1840
6.1.7039.0.winmain.090207-1212
6.1.7040.0.winmain.090209-1855
6.1.7041.0.winmain.090210-1755
6.1.7042.0.winmain.090211-1834
6.1.7043.0.winmain.090212-1811
6.1.7044.0.winmain.090213-1916
6.1.7045.0.winmain.090216-1555
6.1.7046.0.winmain.090217-1850
6.1.7047.0.winmain.090218-1900
6.1.7048.0.winmain.090219-1845 // Leaked March 3, 2009 (x64) & March 7, 2009 (x86)
6.1.7049.0.winmain.090220-1605
6.1.7050.0.winmain.090223-1948
6.1.7050.0.fbl_deployment_bugfix(anfairch).090224-151
Pre-RC 2 // 26 builds - 2 leaks
6.1.7051.0.winmain.090224-1840
6.1.7052.0.winmain.090225-1855
6.1.7053.0.winmain.090226-1910
6.1.7054.0.winmain.090302-1902
6.1.7055.0.winmain.090303-2130
6.1.7056.0.winmain.090304-1844
6.1.7057.0.winmain.090305-2000 // Leaked March 12, 2009 (x86) & March 13, 2009 (x64)
6.1.7058.0.winmain.090307-1140
6.1.7059.0.winmain.090309-1815
6.1.7060.0.winmain.090310-1910
6.1.7061.0.winmain.090311-1856
6.1.7062.0.winmain.090312-1900
6.1.7063.0.winmain.090313-1842
6.1.7064.0.winmain.090316-1936
6.1.7065.0.winmain.090317-1835
6.1.7066.0.winmain.090318-1812
6.1.7067.0.winmain.090319-1853
6.1.7068.0.winmain.090321-1322 // Leaked March 27, 2009 (x86) & March 28, 2009 (x64)
6.1.7069.0.winmain.090323-1630
6.1.7070.0.winmain.090324-1853
6.1.7071.0.winmain.090326-1750
6.1.7072.0.winmain.090327-1845
6.1.7073.0.winmain.090330-1830
6.1.7074.0.winmain.090331-1850
6.1.7075.0.winmain.090401-1840
6.1.7076.0.winmain.090402-1838
RC Branch // 12 builds - 1 leak
6.1.7077.0.winmain_win7rc.090404-1255 // Leaked April 09, 2009 (x86) & April 10, 2009 (x64)
6.1.7078.0.winmain_win7rc.090406-1758
6.1.7079.0.winmain_win7rc.090407-1902
6.1.7080.0.winmain_win7rc.090408-1900
6.1.7081.0.winmain_win7rc.090409-1900
6.1.7082.0.winmain_win7rc.090410-1901
6.1.7083.0.winmain_win7rc.090413-1900
6.1.7084.0.winmain_win7rc.090414-1900
6.1.7085.0.winmain_win7rc.090415-1900
6.1.7086.0.winmain_win7rc.090416-1900
6.1.7087.0.winmain_win7rc.090417-1900
6.1.7088.0.winmain_win7rc.090419-1500
Release Candidate 1 (RC 1) // 1 build - 1 leak
6.1.7100.0.winmain_win7rc.090421-1700 // Leaked April 24, 2009 (both variants); official release date May 5, 2009 (both variants)
Pre-RTM 1 // 14 builds - 1 leak
6.1.7105.0.winmain.090404-1235
6.1.7106.0.winmain.090408-1623 // Leaked April 13, 2009 (x86 as chinese version) All english versions around the web, are modified chinese builds!! THERE'S STILL NO GENUINE ENGLISH LEAK!!!
6.1.7107.0.winmain.090409-1840
6.1.7108.0.winmain.090410-1755
6.1.7109.0.winmain.090413-1552
6.1.7110.0.winmain.090414-1906
6.1.7111.0.winmain.090415-1920
6.1.7112.0.winmain.090416-1820
6.1.7113.0.winmain.090417-1710
6.1.7114.0.winmain.090420-1603
6.1.7115.0.winmain.090421-1650
6.1.7116.0.winmain.090422-1816
6.1.7117.0.winmain.090423-17хх
6.1.7118.0.winmain.090424-17xx
TOTAL: 255 builds - 13 leaks
