diff --git a/CHANGELOG.md b/CHANGELOG.md
index a07732e..b3cd4f0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ this file is about the package, whose version moves independently.
 
 ## Unreleased
 
+## 0.10.0
+
 - **Breaking: a place is one object, and a dive site carries it.** §6.9 of
   [the specification](https://github.com/divejson/divejson/blob/main/spec/divejson.md) is
   *Location* rather than *Trip Location* and both a trip part and a dive site reference it, so
diff --git a/divejson/__init__.py b/divejson/__init__.py
index 90887c4..7973874 100644
--- a/divejson/__init__.py
+++ b/divejson/__init__.py
@@ -20,7 +20,7 @@
 resolves its own schema and needs no checkout of anything.
 """
 
-__version__ = "0.9.0"
+__version__ = "0.10.0"
 
 SPEC_VERSION = "1.0"