Update release notes for version 1.2.0

CHANGELOG.md

@@ -1,3 +1,30 @@
+## Version 1.2.0 (2021/09/18)
+
+### Issues Closed
+
+* [Issue 325](https://github.com/ssec/sift/issues/325) - GOES-18 ([PR 326](https://github.com/ssec/sift/pull/326) by [@djhoese](https://github.com/djhoese))
+* [Issue 323](https://github.com/ssec/sift/issues/323) - Color limit sliders only respond to direct click events ([PR 324](https://github.com/ssec/sift/pull/324) by [@djhoese](https://github.com/djhoese))
+
+In this release 2 issues were closed.
+
+### Pull Requests Merged
+
+#### Bugs fixed
+
+* [PR 326](https://github.com/ssec/sift/pull/326) - Fix GOES-18 platform not being recognized properly ([325](https://github.com/ssec/sift/issues/325))
+* [PR 319](https://github.com/ssec/sift/pull/319) - Fix half pixel offset for point probing
+* [PR 317](https://github.com/ssec/sift/pull/317) - Fix validity check of reprojected mesh in TiledGelocatedImageVisual
+* [PR 316](https://github.com/ssec/sift/pull/316) - Improve log message when tiled image isn't displayed
+
+#### Features added
+
+* [PR 324](https://github.com/ssec/sift/pull/324) - Update color limit sliders to update display instantly ([323](https://github.com/ssec/sift/issues/323))
+* [PR 318](https://github.com/ssec/sift/pull/318) - Remove background/overview image tile
+* [PR 312](https://github.com/ssec/sift/pull/312) - Update to work with VisPy 0.7
+
+In this release 7 pull requests were closed.
+
+
 ## Version 1.1.6 (2021/01/11)
 
 ### Pull Requests Merged