CHANGELOG.md in slugbuilder-1.1.0 vs CHANGELOG.md in slugbuilder-1.2.0

- old
+ new
@@ -1,6 +1,20 @@
 # Changelog
 
+## 1.2.0 (2017-2-1)
+
+Fixed:
+
+- Support multiple buildpacks such that they correctly pass environment variables to succeeding buildpacks [00c3010](../../commit/00c3010)
+- Add support for buildpack compile's `ENV_DIR` argument. [06cbecd](../../commit/06cbecd)
+- Handle errors on git commands [051e281](../../commit/051e281)
+- Run buildpacks without context of preexisting environment [d5767e8](../../commit/d5767e8)
+
+Added:
+
+- Show error backtrace [21cfc90](../../commit/21cfc90)
+- Set `REQUEST_ID` and `SOURCE_VERSION` environment variables [c8834c1](../../commit/c8834c1) and [8804f50](../../commit/8804f50)
+
 ## 1.1.0 (2017-1-27)
 
 Fixed:
 
 - `build` with `clear_cache: true` now works correctly [e535c96](../../commit/e535c96)