Unknown tag 'gist'

[kewp]

I just installed jekyll on Windows following this http://jekyll-windows.juthilo.com/
and then ran

gem install jekyll jekyll-gist jekyll-sitemap jekyll-seo-tag

which worked fine and then when I run jekyll serve from the latest poole release I get the following:

c:\Users\karl\Downloads\poole-2.1.0\poole-2.1.0>jekyll serve
Configuration file: c:/Users/karl/Downloads/poole-2.1.0/poole-2.1.0/_config.yml
       Deprecation: You appear to have pagination turned on, but you haven't included the `jekyll-paginate` gem. Ensure you have `plugins: [jekyll-paginate]` in your configuration file.
            Source: c:/Users/karl/Downloads/poole-2.1.0/poole-2.1.0
       Destination: c:/Users/karl/Downloads/poole-2.1.0/poole-2.1.0/_site
 Incremental build: disabled. Enable with --incremental
      Generating...
  Liquid Exception: Liquid syntax error (line 78): Unknown tag 'gist' in c:/Users/karl/Downloads/poole-2.1.0/poole-2.1.0/_posts/2016-01-02-example-content.md
                    ------------------------------------------------
      Jekyll 4.1.1   Please append `--trace` to the `serve` command
                     for any additional information or backtrace.
                    ------------------------------------------------

[kewp]

Ok so since Jekyll 3.5.0 you have to change the _config.yml to

plugins:
  - jekyll-paginate
  - jekyll-gist

i.e. not gem !