Change the verbiage around minimum required version.

Author: nedtwigg

CHANGES.md

@@ -12,10 +12,9 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 ## [Unreleased]
 ### Added
 * Support for `MAC_CLASSIC` (`\r`) line ending ([#1243](https://github.com/diffplug/spotless/pull/1243) fixes [#1196](https://github.com/diffplug/spotless/issues/1196))
-### Fixed
-* Bump default `diktat` version to latest `1.1.0` -> `1.2.1`. ([saveourtool/diktat#1399](https://github.com/saveourtool/diktat/issues/1399))
-  * Note that support `diktat` version `1.2.1` is or higher
-  * The property `userData` is removed
+### Changed
+* Minimum required `diktat` version bumped to `1.2.1` ([#1246](https://github.com/diffplug/spotless/pull/1246))
+  * Default bumped from `1.1.0` -> `1.2.1`
 
 ## [2.26.2] - 2022-06-11
 ### Fixed

lib/src/main/java/com/diffplug/spotless/kotlin/DiktatStep.java

@@ -59,7 +59,7 @@ public static FormatterStep createForScript(String versionDiktat, Provisioner pr
 
 	public static FormatterStep create(String versionDiktat, Provisioner provisioner, boolean isScript, @Nullable FileSignature config) {
 		if (BadSemver.version(versionDiktat) < BadSemver.version(MIN_SUPPORTED_VERSION)) {
-			throw new IllegalStateException("Diktat supported for version " + MIN_SUPPORTED_VERSION + " and later");
+			throw new IllegalStateException("Minimum required Diktat version is " + MIN_SUPPORTED_VERSION + ", you tried " + versionDiktat + " which is too old");
 		}
 		Objects.requireNonNull(versionDiktat, "versionDiktat");
 		Objects.requireNonNull(provisioner, "provisioner");

plugin-gradle/CHANGES.md

@@ -5,10 +5,9 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 ## [Unreleased]
 ### Added
 * Support for `MAC_CLASSIC` (`\r`) line ending ([#1243](https://github.com/diffplug/spotless/pull/1243) fixes [#1196](https://github.com/diffplug/spotless/issues/1196))
-### Fixed
-* Bump default `diktat` version to latest `1.1.0` -> `1.2.1`. ([saveourtool/diktat#1399](https://github.com/saveourtool/diktat/issues/1399))
-  * Note that support `diktat` version `1.2.1` is or higher
-  * The property `userData` is removed
+### Changed
+* Minimum required `diktat` version bumped to `1.2.1` ([#1246](https://github.com/diffplug/spotless/pull/1246))
+  * Default bumped from `1.1.0` -> `1.2.1`
 
 ## [6.7.2] - 2022-06-11
 ### Fixed

plugin-maven/CHANGES.md

@@ -5,10 +5,9 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 ## [Unreleased]
 ### Added
 * Support for `MAC_CLASSIC` (`\r`) line ending ([#1243](https://github.com/diffplug/spotless/pull/1243) fixes [#1196](https://github.com/diffplug/spotless/issues/1196))
-### Fixed
-* Bump default `diktat` version to latest `1.1.0` -> `1.2.1`. ([saveourtool/diktat#1399](https://github.com/saveourtool/diktat/issues/1399))
-  * Note that support `diktat` version `1.2.1` is or higher
-  * The property `userData` is removed
+### Changed
+* Minimum required `diktat` version bumped to `1.2.1` ([#1246](https://github.com/diffplug/spotless/pull/1246))
+  * Default bumped from `1.1.0` -> `1.2.1`
 
 ## [2.22.8] - 2022-06-11
 ### Fixed