try setting up travis build matrix

* don't want any regressions on 3.6
natverse · May 9, 2020 · 058e307 · 058e307
1 parent 7660285
commit 058e307
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/.travis.yml b/.travis.yml
@@ -2,6 +2,9 @@
 
 language: R
 sudo: false
+r:
+  - oldrel
+  - release
 cache: packages
 r_build_args: --no-manual
 r_check_args: --no-manual