From 058e307ace33e47e95aad0162ea561da786c3cbb Mon Sep 17 00:00:00 2001
From: Gregory Jefferis <jefferis@gmail.com>
Date: Sat, 9 May 2020 18:41:24 +0100
Subject: [PATCH] try setting up travis build matrix

* don't want any regressions on 3.6
---
 .travis.yml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/.travis.yml b/.travis.yml
index 9186eb62..0822ee28 100644
--- 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