diff --git a/docs/minimum-versions.md b/docs/minimum-versions.md
index 3b270f48a4..3ae81102fd 100644
--- a/docs/minimum-versions.md
+++ b/docs/minimum-versions.md
@@ -51,7 +51,7 @@ https://help.keyman.com/developer/engine/android/latest-version/
 | KEYMAN_DEFAULT_VERSION_UBUNTU_CONTAINER | noble |
 | KEYMAN_MIN_TARGET_VERSION_ANDROID | 5.0 |
 | KEYMAN_MIN_TARGET_VERSION_ANDROID_CHROME | 53.0 |
-| KEYMAN_MIN_TARGET_VERSION_IOS | 12.2 |
+| KEYMAN_MIN_TARGET_VERSION_IOS | 15.6 |
 | KEYMAN_MIN_TARGET_VERSION_MAC | 10.13 |
 | KEYMAN_MIN_TARGET_VERSION_UBUNTU | 22.04 |
 | KEYMAN_MIN_TARGET_VERSION_WEB_CHROME | 95.0 |
diff --git a/ios/docs/help/about/system-requirements.md b/ios/docs/help/about/system-requirements.md
index afedfdb540..7563130aed 100644
--- a/ios/docs/help/about/system-requirements.md
+++ b/ios/docs/help/about/system-requirements.md
@@ -6,4 +6,4 @@ title: System Requirements - Keyman for iPhone and iPad Help
 
 ### Minimum iOS Version
 Keyman for iPhone and iPad will run on Apple iPhones and iPads that have a minimum version of
-iOS 12.1.
+iOS 15.6
diff --git a/mac/docs/help/about/requirements.md b/mac/docs/help/about/requirements.md
index 07745f9efc..2e3c1f19d3 100644
--- a/mac/docs/help/about/requirements.md
+++ b/mac/docs/help/about/requirements.md
@@ -13,6 +13,7 @@ Keyman supports the following Mac operating systems:
 * macOS Monterey (12.0)
 * macOS Ventura (13.0)
 * macOS Sonoma (14.0)
+* macOS Sequoia (15.0)
 
 Keyman should also work on future releases of macOS, even if they are not yet listed here.
 
diff --git a/mac/docs/help/common/os.md b/mac/docs/help/common/os.md
index 4362eafaa7..4c117c75cb 100644
--- a/mac/docs/help/common/os.md
+++ b/mac/docs/help/common/os.md
@@ -13,3 +13,4 @@ Keyman supports the following Mac operating systems:
 * macOS Monterey (12.0)
 * macOS Ventura (13.0)
 * macOS Sonoma (14.0)
+* macOS Sequoia (15.0)
diff --git a/resources/build/minimum-versions.inc.sh b/resources/build/minimum-versions.inc.sh
index 9fb46cd492..67df8d0969 100644
--- a/resources/build/minimum-versions.inc.sh
+++ b/resources/build/minimum-versions.inc.sh
@@ -11,7 +11,7 @@
 
 # Target operating system and platform versions
 KEYMAN_MIN_TARGET_VERSION_ANDROID=5.0         # Lollipop
-KEYMAN_MIN_TARGET_VERSION_IOS=12.2            # iOS 12.2
+KEYMAN_MIN_TARGET_VERSION_IOS=15.6            # iOS 15.6
 KEYMAN_MIN_TARGET_VERSION_WINDOWS=10          # Windows 10
 KEYMAN_MIN_TARGET_VERSION_MAC=10.13           # MacOS 10.13 (High Sierra)
 KEYMAN_MIN_TARGET_VERSION_UBUNTU=22.04        # Ubuntu 22.04 Jammy