RUBY 490: Ruby 2.7 to 3.0

<p><!-- wp:paragraph --></p> <p>Dave, John, and Luke get together to finish the discussion leading up to the Ruby 3.0 release. They talk about the different features and concerns that come with upgrading and/or using Ruby 3.0 and how it differs from Ruby 2.7.</p> <p><!-- /wp:paragraph --><!-- wp:heading --></p> <h2>Panel</h2> <p><!-- /wp:heading --><!-- wp:list --></p> <ul> <li>Dave Kimura</li> <li>John Epperson</li> <li>Luke Stutters</li> </ul> <p><!-- /wp:list --><!-- wp:heading --></p> <h2>Sponsors</h2> <p><!-- /wp:heading --><!-- wp:list --></p> <ul> <li><a href="http://devchat.tv/hero" rel="noreferrer noopener" target="_blank">Dev Heroes Accelerator</a></li> </ul> <p><!-- /wp:list --><!-- wp:heading --></p> <h2>Links</h2> <p><!-- /wp:heading --><!-- wp:list --></p> <ul> <li><a href="https://hub.docker.com/_/ruby" rel="noreferrer noopener" target="_blank">Ruby | dockerhub</a></li> <li><a href="https://evilmartians.com/chronicles/ruby-on-whales-docker-for-ruby-rails-development" rel="noreferrer noopener" target="_blank">Ruby on&nbsp;Whales: Dockerizing Ruby and&nbsp;Rails development | Evil Martians</a></li> <li><a href="https://medium.com/@andresakata/background-job-processing-using-ractor-ruby-3-41c7956d14a0" rel="noreferrer noopener" target="_blank">Background Job Processing Using Ractor (Ruby 3) by Andr&eacute; Guimar&atilde;es Sakata</a></li> <li><a href="https://lbarasti.com/post/ruby_ractor/" rel="noreferrer noopener" target="_blank">Parallelism in Ruby with Ractors by Lorenzo Barasti</a></li> <li><a href="https://www.fastruby.io/blog/ruby/performance/how-fast-are-ractors.html#:~:text=The%20big%20difference%20is%20passing,can%20be%20better%20than%20threads" rel="noreferrer noopener" target="_blank">How Fast are Ractors? by Noah Gibbs</a></li> <li><a href="https://www.youtube.com/watch?v=Y29SSOS4UOc" rel="noreferrer noopener" target="_blank">Samuel Williams&#39; Scalable Concurrency for Ruby 3 talk for RubyKaigi 2020</a></li> <li><a href="htt