diff --git a/.changeset/tricky-poets-unite.md b/.changeset/tricky-poets-unite.md
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+---
+"@itwin/presentation-core-interop": major
+"@itwin/presentation-hierarchies": major
+"@itwin/presentation-hierarchies-react": major
+"@itwin/presentation-shared": major
+"@itwin/unified-selection": major
+---
+
+1.0 release.
+
+The APIs are now considered stable and ready for production use.