Tzdata 2022g released

Here are the most notable changes. Full announcement on [tz-announce] 2022g release of tz code and data available

More details on the Hackage package on tzdata: Time zone database (as files and as a module)

Changes to future timestamps

 In the Mexican state of Chihuahua, the border strip near the US
 will change to agree with nearby US locations on 2022-11-30.
 The strip's western part, represented by Ciudad Juárez, switches
 from -06 all year to -07/-06 with US DST rules, like El Paso, TX.
 The eastern part, represented by Ojinaga, will observe US DST next
 year, like Presidio, TX.  (Thanks to Heitor David Pinto.)
 A new Zone America/Ciudad_Juarez splits from America/Ojinaga.

 Much of Greenland, represented by America/Nuuk, stops observing
 winter time after March 2023, so its daylight saving time becomes
 standard time.  (Thanks to Jonas Nyrup and Jürgen Appel.)

Changes to past timestamps

 Changes for pre-1996 northern Canada (thanks to Chris Walton):

   Merge America/Iqaluit and America/Pangnirtung into the former,
   with a backward compatibility link for the latter name.
   There is no good evidence the two locations differ since 1970.
   This change affects pre-1996 America/Pangnirtung timestamps.

   Cambridge Bay, Inuvik, Iqaluit, Rankin Inlet, Resolute and
   Yellowknife did not observe DST in 1965, and did observe DST
   from 1972 through 1979.

   Whitehorse moved from -09 to -08 on 1966-02-27, not 1967-05-28.

 Colombia's 1993 fallback was 02-06 24:00, not 04-04 00:00.
 (Thanks to Alois Treindl.)

 Singapore's 1981-12-31 change was at 16:00 UTC (23:30 local time),
 not 24:00 local time.  (Thanks to Geoff Clare via Robert Elz.)