python · github-actions · Dec 11, 2025
diff --git a/NEWS.md b/NEWS.md
@@ -1,3 +1,27 @@
+# Version 2025.3
+Upstream version 2025c released 2025-12-10T22:42:37+00:00
+
+## Briefly:
+
+Several code changes for compatibility with FreeBSD.
+
+## Changes to past timestamps
+
+Baja California agreed with California’s DST rules in 1953 and in 1961 through
+1975, instead of observing standard time all year. (Thanks to Alois Treindl.)
+
+## Changes to commentary
+
+The leapseconds file contains commentary about the IERS and NIST last-modified
+and expiration timestamps for leap second data. (Thanks to Judah Levine.)
+
+Commentary now also uses characters from the set –‘’“”•≤ as this can be useful
+and should work with current applications.  This also affects data in
+iso3166.tab and zone1970.tab, which now contain strings like “Côte d’Ivoire”
+instead of “Côte d'Ivoire”.
+
+---
+
 # Version 2025.2
 Upstream version 2025b released 2025-03-22T20:40:46+00:00
 

diff --git a/VERSION b/VERSION
@@ -1 +1 @@
-2025.2
+2025.3rc0
diff --git a/news.d/2025c.md b/news.d/2025c.md
@@ -0,0 +1,21 @@
+# Version 2025.3
+Upstream version 2025c released 2025-12-10T22:42:37+00:00
+
+## Briefly:
+
+Several code changes for compatibility with FreeBSD.
+
+## Changes to past timestamps
+
+Baja California agreed with California’s DST rules in 1953 and in 1961 through
+1975, instead of observing standard time all year. (Thanks to Alois Treindl.)
+
+## Changes to commentary
+
+The leapseconds file contains commentary about the IERS and NIST last-modified
+and expiration timestamps for leap second data. (Thanks to Judah Levine.)
+
+Commentary now also uses characters from the set –‘’“”•≤ as this can be useful
+and should work with current applications.  This also affects data in
+iso3166.tab and zone1970.tab, which now contain strings like “Côte d’Ivoire”
+instead of “Côte d'Ivoire”.
diff --git a/src/tzdata/__init__.py b/src/tzdata/__init__.py
@@ -1,6 +1,6 @@
 # IANA versions like 2020a are not valid PEP 440 identifiers; the recommended
 # way to translate the version is to use YYYY.n where `n` is a 0-based index.
-__version__ = "2025.2"
+__version__ = "2025.3rc0"
 
 # This exposes the original IANA version number.
-IANA_VERSION = "2025b"
+IANA_VERSION = "2025c"
diff --git a/src/tzdata/zoneinfo/America/Ensenada b/src/tzdata/zoneinfo/America/Ensenada
diff --git a/src/tzdata/zoneinfo/America/Santa_Isabel b/src/tzdata/zoneinfo/America/Santa_Isabel
diff --git a/src/tzdata/zoneinfo/America/Tijuana b/src/tzdata/zoneinfo/America/Tijuana
diff --git a/src/tzdata/zoneinfo/Mexico/BajaNorte b/src/tzdata/zoneinfo/Mexico/BajaNorte
diff --git a/src/tzdata/zoneinfo/iso3166.tab b/src/tzdata/zoneinfo/iso3166.tab
@@ -3,22 +3,22 @@
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 #
-# From Paul Eggert (2023-09-06):
+# From Paul Eggert (2025-07-01):
 # This file contains a table of two-letter country codes.  Columns are
-# separated by a single tab.  Lines beginning with '#' are comments.
+# separated by a single tab.  Lines beginning with ‘#’ are comments.
 # All text uses UTF-8 encoding.  The columns of the table are as follows:
 #
 # 1.  ISO 3166-1 alpha-2 country code, current as of
-#     ISO/TC 46 N1108 (2023-04-05).  See: ISO/TC 46 Documents
+#     ISO/TC 46 N1127 (2024-02-29).  See: ISO/TC 46 Documents
 #     https://www.iso.org/committee/48750.html?view=documents
 # 2.  The usual English name for the coded region.  This sometimes
 #     departs from ISO-listed names, sometimes so that sorted subsets
-#     of names are useful (e.g., "Samoa (American)" and "Samoa
-#     (western)" rather than "American Samoa" and "Samoa"),
+#     of names are useful (e.g., “Samoa (American)” and “Samoa
+#     (western)” rather than “American Samoa” and “Samoa”),
 #     sometimes to avoid confusion among non-experts (e.g.,
-#     "Czech Republic" and "Turkey" rather than "Czechia" and "Türkiye"),
-#     and sometimes to omit needless detail or churn (e.g., "Netherlands"
-#     rather than "Netherlands (the)" or "Netherlands (Kingdom of the)").
+#     “Czech Republic” and “Turkey” rather than “Czechia” and “Türkiye”),
+#     and sometimes to omit needless detail or churn (e.g., “Netherlands”
+#     rather than “Netherlands (the)” or “Netherlands (Kingdom of the)”).
 #
 # The table is sorted by country code.
 #
@@ -71,7 +71,7 @@ CD	Congo (Dem. Rep.)
 CF	Central African Rep.
 CG	Congo (Rep.)
 CH	Switzerland
-CI	Côte d'Ivoire
+CI	Côte d’Ivoire
 CK	Cook Islands
 CL	Chile
 CM	Cameroon

diff --git a/src/tzdata/zoneinfo/leapseconds b/src/tzdata/zoneinfo/leapseconds
@@ -5,7 +5,8 @@
 # This file is generated automatically from the data in the public-domain
 # NIST/IERS format leap-seconds.list file, which can be copied from
 # <https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list>
-# or, in a variant with different comments, from
+# or via a less-secure protocol and with different comments and
+# less volatile last-modified and expiration timestamps, from
 # <ftp://ftp.boulder.nist.gov/pub/time/leap-seconds.list>.
 # For more about leap-seconds.list, please see
 # The NTP Timescale and Leap Seconds
@@ -69,11 +70,17 @@ Leap	2016	Dec	31	23:59:60	+	S
 # Any additional leap seconds will come after this.
 # This Expires line is commented out for now,
 # so that pre-2020a zic implementations do not reject this file.
-#Expires 2025	Dec	28	00:00:00
+#Expires 2026	Jun	28	00:00:00
 
-# POSIX timestamps for the data in this file:
-#updated 1736208000 (2025-01-07 00:00:00 UTC)
-#expires 1766880000 (2025-12-28 00:00:00 UTC)
+# Here are POSIX timestamps for the data in this file.
+# "#updated" gives the last time the leap seconds data changed
+# or, if this file was derived from the IERS leap-seconds.list,
+# the last time that file changed in any way.
+# "#expires" gives the first time this file might be wrong;
+# if this file was derived from the IERS leap-seconds.list,
+# this is typically a bit less than one year after "updated".
+#updated 1751846400 (2025-07-07 00:00:00 UTC)
+#expires 1782604800 (2026-06-28 00:00:00 UTC)
 
 #	Updated through IERS Bulletin C (https://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat)
-#	File expires on 28 December 2025
+#	File expires on 28 June 2026
diff --git a/src/tzdata/zoneinfo/tzdata.zi b/src/tzdata/zoneinfo/tzdata.zi
@@ -1,4 +1,4 @@
-# version 2025b
+# version 2025c
 # This zic input file is in the public domain.
 R d 1916 o - Jun 14 23s 1 S
 R d 1916 1919 - O Su>=1 23s 0 -
@@ -2951,9 +2951,7 @@ Z America/Tijuana -7:48:4 - LMT 1922 Ja 1 7u
 -8 1 PDT 1951 S 30 2
 -8 - PST 1952 Ap 27 2
 -8 1 PDT 1952 S 28 2
--8 - PST 1954
--8 CA P%sT 1961
--8 - PST 1976
+-8 CA P%sT 1967
 -8 u P%sT 1996
 -8 m P%sT 2001
 -8 u P%sT 2002 F 20

diff --git a/src/tzdata/zoneinfo/zone1970.tab b/src/tzdata/zoneinfo/zone1970.tab
@@ -2,15 +2,15 @@
 #
 # This file is in the public domain.
 #
-# From Paul Eggert (2018-06-27):
+# From Paul Eggert (2025-05-15):
 # This file contains a table where each row stands for a timezone where
 # civil timestamps have agreed since 1970.  Columns are separated by
-# a single tab.  Lines beginning with '#' are comments.  All text uses
+# a single tab.  Lines beginning with ‘#’ are comments.  All text uses
 # UTF-8 encoding.  The columns of the table are as follows:
 #
 # 1.  The countries that overlap the timezone, as a comma-separated list
-#     of ISO 3166 2-character country codes.  See the file 'iso3166.tab'.
-# 2.  Latitude and longitude of the timezone's principal location
+#     of ISO 3166 2-character country codes.
+# 2.  Latitude and longitude of the timezone’s principal location
 #     in ISO 6709 sign-degrees-minutes-seconds format,
 #     either ±DDMM±DDDMM or ±DDMMSS±DDDMMSS,
 #     first latitude (+ is north), then longitude (+ is east).
@@ -197,7 +197,7 @@ KZ	+4448+06528	Asia/Qyzylorda	Qyzylorda/Kyzylorda/Kzyl-Orda
 KZ	+5312+06337	Asia/Qostanay	Qostanay/Kostanay/Kustanay
 KZ	+5017+05710	Asia/Aqtobe	Aqtöbe/Aktobe
 KZ	+4431+05016	Asia/Aqtau	Mangghystaū/Mankistau
-KZ	+4707+05156	Asia/Atyrau	Atyraū/Atirau/Gur'yev
+KZ	+4707+05156	Asia/Atyrau	Atyraū/Atirau/Gur’yev
 KZ	+5113+05121	Asia/Oral	West Kazakhstan
 LB	+3353+03530	Asia/Beirut
 LK	+0656+07951	Asia/Colombo
@@ -245,7 +245,7 @@ PE	-1203-07703	America/Lima
 PF	-1732-14934	Pacific/Tahiti	Society Islands
 PF	-0900-13930	Pacific/Marquesas	Marquesas Islands
 PF	-2308-13457	Pacific/Gambier	Gambier Islands
-PG,AQ,FM	-0930+14710	Pacific/Port_Moresby	Papua New Guinea (most areas), Chuuk, Yap, Dumont d'Urville
+PG,AQ,FM	-0930+14710	Pacific/Port_Moresby	Papua New Guinea (most areas), Chuuk, Yap, Dumont d’Urville
 PG	-0613+15534	Pacific/Bougainville	Bougainville
 PH	+143512+1205804	Asia/Manila
 PK	+2452+06703	Asia/Karachi
@@ -265,7 +265,7 @@ RO	+4426+02606	Europe/Bucharest
 RS,BA,HR,ME,MK,SI	+4450+02030	Europe/Belgrade
 RU	+5443+02030	Europe/Kaliningrad	MSK-01 - Kaliningrad
 RU	+554521+0373704	Europe/Moscow	MSK+00 - Moscow area
-# Mention RU and UA alphabetically.  See "territorial claims" above.
+# Mention RU and UA alphabetically.  See “territorial claims” above.
 RU,UA	+4457+03406	Europe/Simferopol	Crimea
 RU	+5836+04939	Europe/Kirov	MSK+00 - Kirov
 RU	+4844+04425	Europe/Volgograd	MSK+00 - Volgograd
@@ -353,20 +353,20 @@ ZA,LS,SZ	-2615+02800	Africa/Johannesburg
 # The next section contains experimental tab-separated comments for
 # use by user agents like tzselect that identify continents and oceans.
 #
-# For example, the comment "#@AQ<tab>Antarctica/" means the country code
+# For example, the comment ‘#@AQ<tab>Antarctica/’ means the country code
 # AQ is in the continent Antarctica regardless of the Zone name,
 # so Pacific/Auckland should be listed under Antarctica as well as
-# under the Pacific because its line's country codes include AQ.
+# under the Pacific because its line’s country codes include AQ.
 #
 # If more than one country code is affected each is listed separated
-# by commas, e.g., #@IS,SH<tab>Atlantic/".  If a country code is in
+# by commas, e.g., ‘#@IS,SH<tab>Atlantic/’.  If a country code is in
 # more than one continent or ocean, each is listed separated by
-# commas, e.g., the second column of "#@CY,TR<tab>Asia/,Europe/".
+# commas, e.g., the second column of ‘#@CY,TR<tab>Asia/,Europe/’.
 #
 # These experimental comments are present only for country codes where
 # the continent or ocean is not already obvious from the Zone name.
 # For example, there is no such comment for RU since it already
-# corresponds to Zone names starting with both "Europe/" and "Asia/".
+# corresponds to Zone names starting with both ‘Europe/’ and ‘Asia/’.
 #
 #@AQ	Antarctica/
 #@IS,SH	Atlantic/