Latest released version (1.0.9) not compatible with Rails 5.2.2

[fwolfst]

According to https://rubygems.org/gems/documentation the latest released version is 1.0.9 which does not include the fix on rails version boundary check (656d021).
Could you release a new version?

Fetching gem metadata from https://rubygems.org/............
Fetching gem metadata from https://rubygems.org/.
Resolving dependencies...
Bundler could not find compatible versions for gem "rails":
  In snapshot (Gemfile.lock):
    rails (= 5.2.2)

  In Gemfile:
    rails (~> 5.2.2)

    documentation (~> 1.0.9) was resolved to 1.0.9, which depends on
      rails (< 5.0, >= 4.0.0)

Running `bundle update` will rebuild your snapshot from scratch, using only
the gems in your Gemfile, which may resolve the conflict.