The Microsoft Windows time zone database changes periodically, and Microsoft pushes out changes via Windows Updates. These changes are also announced on the Microsoft Daylight Saving Time & Time Zone Blog, and in the Daylight Saving Time Help and Support Center.
When a change is made, in addition to the data being changed, there is a version number that is updated in the registry at the following key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones
The version is in a
REG_DWORD value called
TzVersion. On my computer, it is currently set to the value
0x7dd0100 (131924224 decimal).
The question is: Where can I find a list of changes by version number? While each of the updates increments the version number, they are not monotonic, and the blog that references the updates does not make note of the version number.
Surely there is a table somewhere that includes the version number, release date, and corresponding MSKB number. I just can't seem to find it. Anyone know where (or if) it is published?