Update changelog

Author: hc-github-team-tf-provider-devex

.changes/1.12.0.md

@@ -0,0 +1,19 @@
+## 1.12.0 (March 18, 2025)
+
+NOTES:
+
+* all: This Go module has been updated to Go 1.23 per the [Go support policy](https://go.dev/doc/devel/release#policy). It is recommended to review the [Go 1.23 release notes](https://go.dev/doc/go1.23) before upgrading. Any consumers building on earlier Go versions may experience errors. ([#454](https://github.com/hashicorp/terraform-plugin-testing/issues/454))
+
+FEATURES:
+
+* knownvalue: added function checks for custom validation of resource attribute or output values. ([#412](https://github.com/hashicorp/terraform-plugin-testing/issues/412))
+
+ENHANCEMENTS:
+
+* knownvalue: Updated the `ObjectExact` error message to report extra/missing attributes from the actual object. ([#451](https://github.com/hashicorp/terraform-plugin-testing/issues/451))
+* plancheck: Improved the unknown value plan check error messages to include a known value if one exists. ([#450](https://github.com/hashicorp/terraform-plugin-testing/issues/450))
+
+BUG FIXES:
+
+* plancheck: Fixed bug with all unknown value plan checks where a valid path would return a "path not found" error. ([#450](https://github.com/hashicorp/terraform-plugin-testing/issues/450))
+

.changes/unreleased/BUG FIXES-20250317-190558.yaml

@@ -1,3 +1,22 @@
+## 1.12.0 (March 18, 2025)
+
+NOTES:
+
+* all: This Go module has been updated to Go 1.23 per the [Go support policy](https://go.dev/doc/devel/release#policy). It is recommended to review the [Go 1.23 release notes](https://go.dev/doc/go1.23) before upgrading. Any consumers building on earlier Go versions may experience errors. ([#454](https://github.com/hashicorp/terraform-plugin-testing/issues/454))
+
+FEATURES:
+
+* knownvalue: added function checks for custom validation of resource attribute or output values. ([#412](https://github.com/hashicorp/terraform-plugin-testing/issues/412))
+
+ENHANCEMENTS:
+
+* knownvalue: Updated the `ObjectExact` error message to report extra/missing attributes from the actual object. ([#451](https://github.com/hashicorp/terraform-plugin-testing/issues/451))
+* plancheck: Improved the unknown value plan check error messages to include a known value if one exists. ([#450](https://github.com/hashicorp/terraform-plugin-testing/issues/450))
+
+BUG FIXES:
+
+* plancheck: Fixed bug with all unknown value plan checks where a valid path would return a "path not found" error. ([#450](https://github.com/hashicorp/terraform-plugin-testing/issues/450))
+
 ## 1.11.0 (November 19, 2024)
 
 NOTES: