I migrated Rails from version 7 to 8 and I noticed that the Spring gem was removed from Rails 8. I suspect this might be someway contributing to my RSpec test suite running significantly slower, possibly due to the lack of preloading between tests.

Could the removal of Spring be a factor in the slowdown?

If so:

• Is it advisable to manually reintroduce Spring in a Rails 8 app?
• Is the latest version of Spring compatible with Rails 8?

Any insights or alternative approaches to speeding up RSpec in Rails 8 would be greatly appreciated.