Merge branch 'master' into release and set version

diff --cc version
index 6f681c6cceeb2099841725a02271c8f6ec1c15b3,4494802a4fd0dc42714e3068afaba8ef2e351a31..b2e979cbabf21d1d5ae75d6c28c0179e701dd86c
--- 1/version
--- 2/version
+++ b/version
@@@ -1,1 -1,1 +1,1 @@@
- v0.26.4
 -v0.27-dev
++v0.27