updated cran comments

Author: earowang

cran-comments.md

@@ -1 +1,26 @@
-This submission is to fix CRAN errors.
+## Release summary
+
+This release will be compatible with dplyr v1.0.0. Some failing packages are related to dplyr updates.
+
+The underlying tsibble data structure has also changed. Some failing packages that provide tsibble data examples are required to reconstruct their tsibble objects.
+
+## Test environments
+
+* local mac OS install, R 4.0.0
+* ubuntu 16.04 (on github actions), R-devel, R 4.0.0, R 3.6.3, 3.5.3, R 3.4.4, R 3.3.3
+* mac OS 10.15.4 (on github actions) R-devel, R 3.6.0
+* Microsoft Windows Server 2019 10.0.17763 (on github actions) R 4.0.0
+* win-builder (devel)
+
+## R CMD check results
+
+0 errors v | 0 warnings v | 0 notes v
+
+R CMD check succeeded
+
+## revdepcheck results
+
+We checked 17 reverse dependencies, comparing R CMD check results across CRAN and dev versions of this package.
+
+ * We saw 7 new problems
+ * We failed to check 4 packages