Update documentation, dependencies, and version sync for 3.2.

Author: gkellogg

.github/workflows/ci.yml

@@ -21,7 +21,6 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
-          - 2.5
           - 2.6
           - 2.7
           - 3.0

Gemfile

@@ -4,7 +4,7 @@ gemspec
 
 gem 'rdf',            github: "ruby-rdf/rdf",       branch: "develop"
 gem 'rdf-rdfa',       github: "ruby-rdf/rdf-rdfa",  branch: "develop"
-gem "nokogiri",       '~> 1.10', platforms: [:mri, :jruby]
+gem "nokogiri",       '~> 1.12', platforms: [:mri, :jruby]
 
 group :development do
   gem 'ebnf',               github: "dryruby/ebnf",                 branch: "develop"

README.md

@@ -20,7 +20,7 @@ Install with `gem install rdf-rdfxml`
 
 * 100% free and unencumbered [public domain](https://unlicense.org/) software.
 * Implements a complete parser for [RDF/XML][].
-* Compatible with Ruby >= 2.4.
+* Compatible with Ruby >= 2.6.
 
 ## Usage:
 Instantiate a parser and parse source, specifying type and base-URL
@@ -42,8 +42,8 @@ Write a graph to a file:
     end
 
 ## Dependencies
-* [RDF.rb](https://rubygems.org/gems/rdf) (~> 3.1)
-* Soft dependency on [Nokogiri](https://rubygems.org/gems/nokogiri) (>= 1.10)
+* [RDF.rb](https://rubygems.org/gems/rdf) (~> 3.2)
+* Soft dependency on [Nokogiri](https://rubygems.org/gems/nokogiri) (>= 1.12)
 
 ## Documentation
 Full documentation available on [Rubydoc.info][RDF/XML doc])

VERSION

@@ -1 +1 @@
-3.1.1
+3.2.0

rdf-rdfxml.gemspec

@@ -18,21 +18,21 @@ Gem::Specification.new do |gem|
   gem.files                 = %w(README.md History.md AUTHORS CONTRIBUTORS VERSION UNLICENSE) + Dir.glob('lib/**/*.rb')
   gem.require_paths         = %w(lib)
 
-  gem.required_ruby_version = '>= 2.4'
+  gem.required_ruby_version = '>= 2.6'
   gem.requirements          = []
 
-  gem.add_runtime_dependency     'rdf',             '~> 3.1', '>= 3.1.12'
-  gem.add_runtime_dependency     'rdf-xsd',         '~> 3.1'
-  gem.add_runtime_dependency     'rdf-rdfa',        '~> 3.1', '>= 3.1.2'
+  gem.add_runtime_dependency     'rdf',             '~> 3.2'
+  gem.add_runtime_dependency     'rdf-xsd',         '~> 3.2'
+  gem.add_runtime_dependency     'rdf-rdfa',        '~> 3.2'
   gem.add_runtime_dependency     'htmlentities',    '~> 4.3'
 
   gem.add_development_dependency 'json-ld',         '>= 3.1'
   gem.add_development_dependency 'rspec',           '~> 3.10'
   gem.add_development_dependency 'rspec-its',       '~> 1.3'
-  gem.add_development_dependency 'rdf-isomorphic',  '~> 3.1'
+  gem.add_development_dependency 'rdf-isomorphic',  '~> 3.2'
   gem.add_development_dependency 'rdf-turtle',      '~> 3.1'
-  gem.add_development_dependency 'rdf-spec',        '~> 3.1'
-  gem.add_development_dependency 'rdf-vocab',       '~> 3.1'
+  gem.add_development_dependency 'rdf-spec',        '~> 3.2'
+  gem.add_development_dependency 'rdf-vocab',       '~> 3.2'
   gem.add_development_dependency 'yard' ,           '~> 0.9'
 
   gem.post_install_message  = nil