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| 1 | +# Version 2022.7 |
| 2 | +Upstream version 2022g released 2022-11-29T16:58:31+00:00 |
| 3 | + |
| 4 | +## Briefly: |
| 5 | + |
| 6 | +The northern edge of Chihuahua changes to US timekeeping. Much of Greenland |
| 7 | +stops changing clocks after March 2023. Fix some pre-1996 timestamps in northern |
| 8 | +Canada. C89 is now deprecated; please use C99 or later. Portability fixes for |
| 9 | +AIX, libintl, MS-Windows, musl, z/OS In C code, use more C23 features if |
| 10 | +available. C23 timegm now supported by default Fixes for unlikely integer |
| 11 | +overflows |
| 12 | + |
| 13 | +## Changes to future timestamps |
| 14 | + |
| 15 | +In the Mexican state of Chihuahua, the border strip near the US will change to |
| 16 | +agree with nearby US locations on 2022-11-30. The strip's western part, |
| 17 | +represented by Ciudad Juárez, switches from -06 all year to -07/-06 with US DST |
| 18 | +rules, like El Paso, TX. The eastern part, represented by Ojinaga, will observe |
| 19 | +US DST next year, like Presidio, TX. (Thanks to Heitor David Pinto.) A new Zone |
| 20 | +America/Ciudad_Juarez splits from America/Ojinaga. |
| 21 | + |
| 22 | +Much of Greenland, represented by America/Nuuk, stops observing winter time |
| 23 | +after March 2023, so its daylight saving time becomes standard time. (Thanks to |
| 24 | +Jonas Nyrup and Jürgen Appel.) |
| 25 | + |
| 26 | +## Changes to past timestamps |
| 27 | + |
| 28 | +Changes for pre-1996 northern Canada (thanks to Chris Walton): |
| 29 | + |
| 30 | +Merge America/Iqaluit and America/Pangnirtung into the former, with a backward |
| 31 | +compatibility link for the latter name. There is no good evidence the two |
| 32 | +locations differ since 1970. This change affects pre-1996 America/Pangnirtung |
| 33 | +timestamps. |
| 34 | + |
| 35 | +Cambridge Bay, Inuvik, Iqaluit, Rankin Inlet, Resolute and Yellowknife did not |
| 36 | +observe DST in 1965, and did observe DST from 1972 through 1979. |
| 37 | + |
| 38 | +Whitehorse moved from -09 to -08 on 1966-02-27, not 1967-05-28. |
| 39 | + |
| 40 | +Colombia's 1993 fallback was 02-06 24:00, not 04-04 00:00. (Thanks to Alois |
| 41 | +Treindl.) |
| 42 | + |
| 43 | +Singapore's 1981-12-31 change was at 16:00 UTC (23:30 local time), not 24:00 |
| 44 | +local time. (Thanks to Geoff Clare via Robert Elz.) |
| 45 | + |
| 46 | +--- |
| 47 | + |
1 | 48 | # Version 2022.6 |
2 | 49 | Upstream version 2022f released 2022-10-29T01:04:57+00:00 |
3 | 50 |
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