diff --git a/docs/minimum-versions.md b/docs/minimum-versions.md
index 7ec93e317f..0bd31eebac 100644
--- a/docs/minimum-versions.md
+++ b/docs/minimum-versions.md
@@ -66,7 +66,7 @@ https://help.keyman.com/developer/engine/android/latest-version/
 | KEYMAN_MIN_VERSION_NODE_MAJOR | 20 |
 | KEYMAN_MIN_VERSION_NPM | 10.5.1 |
 | KEYMAN_MIN_VERSION_VISUAL_STUDIO | 2019 |
-| KEYMAN_VERSION_CLDR | 45 |
+| KEYMAN_VERSION_CLDR | 46 |
 | KEYMAN_VERSION_GRADLE | 7.6.4 |
 | KEYMAN_VERSION_ICU | 73.1 |
 | KEYMAN_VERSION_ISO639_3 | 2024-05-22 |
diff --git a/resources/build/minimum-versions.inc.sh b/resources/build/minimum-versions.inc.sh
index a8ad69be05..eadd2442cf 100644
--- a/resources/build/minimum-versions.inc.sh
+++ b/resources/build/minimum-versions.inc.sh
@@ -24,7 +24,7 @@ KEYMAN_MIN_TARGET_VERSION_WEB_FIREFOX=79.0    # TBD
 KEYMAN_MIN_TARGET_VERSION_WEB_OPERA=47.0      # TBD
 KEYMAN_MIN_TARGET_VERSION_WEB_SAFARI=13.0     # iOS 13.0, macOS 10.13.6+
 
-# Dependency versions
+# Dependency minimum versions
 KEYMAN_MIN_VERSION_NODE_MAJOR=20              # node version source of truth is /package.json:/engines/node; use KEYMAN_USE_NVM to automatically update
 KEYMAN_MIN_VERSION_NPM=10.5.1                 # 10.5.0 has bug, discussed in #10350
 KEYMAN_MIN_VERSION_EMSCRIPTEN=3.1.58          # Use KEYMAN_USE_EMSDK to automatically update to this version
@@ -32,6 +32,8 @@ KEYMAN_MIN_VERSION_VISUAL_STUDIO=2019
 KEYMAN_MIN_VERSION_MESON=1.0.0
 
 KEYMAN_VERSION_GRADLE=7.6.4                   # See /android/KMEA/gradle/wrapper/gradle-wrapper.properties
+
+# Dependencies with fixed versions
 KEYMAN_VERSION_ICU=73.1                       # See /core/subprojects/icu-minimal.wrap
 
 # Language and runtime versions
@@ -43,8 +45,8 @@ KEYMAN_MIN_VERSION_ANDROID_SDK=21
 KEYMAN_DEFAULT_VERSION_UBUNTU_CONTAINER=noble # Ubuntu 24.04 Noble
 
 # Data versions -- see resources/standards-data/readme.md
-KEYMAN_VERSION_CLDR=45                              # LDML Keyboards version
+KEYMAN_VERSION_CLDR=46                              # LDML Keyboards version
 KEYMAN_VERSION_ISO639_3=2024-05-22                  # Date of last import
-KEYMAN_VERSION_LANGTAGS=2025-02-18                  # Date of last import
+KEYMAN_VERSION_LANGTAGS=2025-02-18                  # _version value
 KEYMAN_VERSION_LANGUAGE_SUBTAG_REGISTRY=2025-03-10  # Date from first line of language-subtag-registry
 KEYMAN_VERSION_UNICODE=16.0.0                       # UCD + related data
diff --git a/resources/build/minimum-versions.tests.inc.sh b/resources/build/minimum-versions.tests.inc.sh
new file mode 100644
index 0000000000..b961124081
--- /dev/null
+++ b/resources/build/minimum-versions.tests.inc.sh
@@ -0,0 +1,90 @@
+#
+# Keyman is copyright (C) SIL Global. MIT License.
+#
+# Created by mcdurdin on 2025-04-30
+#
+# Test that resources in our repository match the expected minimum versions,
+# where possible. Uses a variety of mechanisms to extract the version
+#
+
+. "${KEYMAN_ROOT}/resources/build/jq.inc.sh"
+
+#
+# Tests that the referenced filename has the expected version
+# found in the input variable. The actual version is extracted
+# with a helper function named _minver_test_$variable, which
+# parses the file or its metadata, as this may vary considerably
+#
+# Parameters
+#   1: variable    the name of the environment variable to test
+#   2: filename    the file to test the version against
+#
+_minver_test() {
+  local variable="$1"
+  local filename="$2"
+
+  local actual_version="$(_minver_test_${variable} "$filename")"
+  local -n expected_version="${variable}"
+
+  builder_echo "Testing \$$1, expecting '$expected_version'"
+  if [[ "$expected_version" != "$actual_version" ]]; then
+    builder_die "$filename: expected '$expected_version', actual version in repo is '$actual_version'"
+  fi
+}
+
+_minver_test_KEYMAN_VERSION_LANGUAGE_SUBTAG_REGISTRY() {
+  # language-subtag-registry format:
+  #   File-Date: 2025-03-10
+  head "$1" -n 1 | cut -d" " -f 2 -
+}
+
+_minver_test_KEYMAN_VERSION_UNICODE() {
+  # Blocks.txt format:
+  #   # Blocks-16.0.0.txt
+  head "$1" -n 1 | cut -d- -f 2 - | cut -d. -f 1,2,3 -
+}
+
+_minver_test_KEYMAN_VERSION_LANGTAGS() {
+  # entry with tag '_version'
+  "$JQ" -r -c '.[] | select(.tag == "_version") .date' "$1"
+}
+
+_minver_test_KEYMAN_VERSION_CLDR() {
+  # finds the folder with the expected name
+  ## find "$1" -name '[0-9][0-9]' -type d -printf '%f'
+  # note macos find does not support -printf, so went with this:
+  find "$1" -name '[0-9][0-9]' -type d -exec basename {} \;
+}
+
+_minver_test_KEYMAN_VERSION_ISO639_3() {
+  # git commit log for last commit for the file
+  git log -1 --format="%cs" -- "$1"
+}
+
+_minver_test_KEYMAN_VERSION_ICU() {
+  # source_filename = icu4c-73_1-src.tgz
+  grep "source_filename" "$1" | cut -d- -f 2 - | tr _ .
+}
+
+_minver_test_KEYMAN_MIN_VERSION_NODE_MAJOR() {
+  # package.json, major.minor.patch, we use only major
+  "$JQ" -r '.engines.node' "$1" | cut -d. -f 1 -
+}
+
+#
+# Test that the minimum version of imported resources matches as expected
+#
+minver_test_all() {
+  local STANDARDS_DATA="$KEYMAN_ROOT/resources/standards-data"
+
+  _minver_test KEYMAN_MIN_VERSION_NODE_MAJOR "$KEYMAN_ROOT/package.json"
+
+  _minver_test KEYMAN_VERSION_ICU "$KEYMAN_ROOT/core/subprojects/icu-minimal.wrap"
+
+  _minver_test KEYMAN_VERSION_LANGUAGE_SUBTAG_REGISTRY "$STANDARDS_DATA/language-subtag-registry/language-subtag-registry"
+  _minver_test KEYMAN_VERSION_UNICODE "$STANDARDS_DATA/unicode-character-database/Blocks.txt"
+  _minver_test KEYMAN_VERSION_UNICODE "$STANDARDS_DATA/unicode-character-database/WordBreakProperty.txt"
+  _minver_test KEYMAN_VERSION_LANGTAGS "$STANDARDS_DATA/langtags/langtags.json"
+  _minver_test KEYMAN_VERSION_CLDR "$STANDARDS_DATA/ldml-keyboards/"
+  _minver_test KEYMAN_VERSION_ISO639_3 "$STANDARDS_DATA/iso639-3/iso639-3.tab"
+}
\ No newline at end of file
diff --git a/resources/build/publish-minimum-versions.sh b/resources/build/publish-minimum-versions.sh
index 8c420acb6c..90ff5ca3d5 100755
--- a/resources/build/publish-minimum-versions.sh
+++ b/resources/build/publish-minimum-versions.sh
@@ -12,6 +12,7 @@ THIS_SCRIPT="$(readlink -f "${BASH_SOURCE[0]}")"
 ## END STANDARD BUILD SCRIPT INCLUDE
 
 . "${KEYMAN_ROOT}/resources/build/minimum-versions.inc.sh"
+. "${KEYMAN_ROOT}/resources/build/minimum-versions.tests.inc.sh"
 
 builder_describe "Build and test minimum-versions" \
   clean build test
@@ -53,16 +54,10 @@ do_test() {
     builder_die "minimum-versions.md is not up to date. Please run 'publish-minimum-versions.sh build'"
   )
 
-  rm  "$new_table"
+  rm "$new_table"
 
-  # TODO: this should have a test for each of the known machine-extractable versions.
-
-  # language-subtag-registry
-
-  local NEW_KEYMAN_VERSION_LANGUAGE_SUBTAG_REGISTRY="$(head ../standards-data/language-subtag-registry/language-subtag-registry -n 1 | cut -d" " -f 2 -)"
-  if [[ "$NEW_KEYMAN_VERSION_LANGUAGE_SUBTAG_REGISTRY" != "$KEYMAN_VERSION_LANGUAGE_SUBTAG_REGISTRY" ]]; then
-    builder_die "language-subtag-registry is version '$NEW_KEYMAN_VERSION_LANGUAGE_SUBTAG_REGISTRY' but minimum-version.inc.sh has version '$KEYMAN_VERSION_LANGUAGE_SUBTAG_REGISTRY'"
-  fi
+  # From minimum-versions.tests.inc.sh
+  minver_test_all
 }
 
 builder_run_action clean rm -f "$KEYMAN_ROOT/docs/minimum-versions.md"