v1.8

Update base Ruby Docker image version.

Debug

v1.7

fix env var check

Fixes SASSC Illegal instruction bug

This version adds an install option for the sassc gem that fixes the intermittent illegal instruction bug during Jekyll builds.

Bundler jobs and retries

This version supports Bundler 2.x and Jeykll 4.x, enables Bundler caching, jobs and retries.

Use caching by default

The version supports Bundler 2.x and Jeykll 4.x and enables Bundler caching.