diff --git a/CHANGES.md b/CHANGES.md
index 91fbac1..bccdb4f 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,5 +1,12 @@
 # opensensmapr changelog
 
+### 2017-09-04: v0.3.0
+- add utility functions: `filter`, `mutate`, `[`, `st_as_sf` for classes `sensebox` and `osem_measurements`
+- add `osem_as_sensebox` and `osem_as_measurement` constructors
+
+#### breaking changes
+- `osem_as_sf` has moved to `st_as_sf.sensebox` and `st_as_sf.osem_measurements`
+
 ### 2017-08-24: v0.2.1
 - add labels to `osem_measurements` plots
 - add last active counts to `tools/monitor`
diff --git a/DESCRIPTION b/DESCRIPTION
index 89fd003..850462e 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,7 +1,7 @@
 Package: opensensmapr
 Type: Package
 Title: Work with Sensor Data from opensensemap.org in R
-Version: 0.2.1
+Version: 0.3.0
 URL: http://github.com/noerw/opensensmapR
 BugReports: http://github.com/noerw/opensensmapR/issues
 Imports: