diff --git a/tzdata.cabal b/tzdata.cabal
--- a/tzdata.cabal
+++ b/tzdata.cabal
@@ -1,5 +1,5 @@
 Name: tzdata
-Version: 0.2.20220810.0
+Version: 0.2.20220815.0
 License: Apache-2.0
 License-File: LICENSE
 Author: Mihaly Barasz, Gergely Risko
@@ -16,7 +16,7 @@
   Database in a cabal package, so that it can be used in Haskell
   programs uniformly on all platforms.
   .
-  This package currently ships the @2022b@ version of the time zone
+  This package currently ships the @2022c@ version of the time zone
   database.  The version of the time zone database shipped is always
   reflected in the version of this package: @x.y.YYYYMMDD.z@, then
   @YYYYMMDD@ is the official release date of time zone database.
@@ -58,7 +58,7 @@
     bytestring         >= 0.9      && < 0.12,
     containers         >= 0.5      && < 0.7,
     deepseq            >= 1.1      && < 1.5,
-    vector             >= 0.9      && < 0.13
+    vector             >= 0.9      && < 0.14
 
   if !impl(ghc >= 7.8)
     Build-Depends: tagged >=0.8.6 && <0.9
diff --git a/tzdata/zone1970.tab b/tzdata/zone1970.tab
--- a/tzdata/zone1970.tab
+++ b/tzdata/zone1970.tab
@@ -351,3 +351,27 @@
 VU	-1740+16825	Pacific/Efate
 WS	-1350-17144	Pacific/Apia
 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
+# 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.
+#
+# 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
+# more than one continent or ocean, each is listed separated by
+# 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/".
+#
+#@AQ	Antarctica/
+#@IS,SH	Atlantic/
+#@CY,TR	Asia/,Europe/
+#@SJ	Arctic/
+#@CC,CX,KM,MG,YT	Indian/