Rails 8 support

[andynu]

Steps to reproduce

Make a rails project with:

gem 'rails', '~> 8.0.0'
gem 'exception_notification', '~> 4.5.0'

Attempt to bundle.

Expected behavior

success.

Actual behavior

failure:

Fetching gem metadata from https://rubygems.org/........
Resolving dependencies...
Could not find compatible versions

Because exception_notification >= 4.5.0 depends on activesupport >= 5.2, < 8
  and rails >= 8.0.0 depends on activesupport = 8.0.0,
  exception_notification >= 4.5.0 is incompatible with rails >= 8.0.0.
So, because Gemfile depends on rails ~> 8.0.0
  and Gemfile depends on exception_notification ~> 4.5.0,
  version solving has failed.

System configuration

Rails version: 8.0.0

Ruby version: 3.3.5

Other configurations:

[brandondrew]

The strange thing is that version 4.1.1 claims to support Rails 8, but this is rather doubtful. It appears more likely that its lack of an upper limit was an oversight.

[kmcphillips]

Yeah it downgraded to the last version that didn't have a configured upper limit.

[Petercopter]

This is on the way to being resolved 🎉

#544

Thanks @smartinez87

[brandondrew]

This is on the way to being resolved 🎉

@Petercopter
On the way? Or already resolved (if we use the master branch)?