Update documentation, dependencies, and version sync for 3.2.

Author: gkellogg

.github/workflows/ci.yml

@@ -20,7 +20,6 @@ jobs:
       fail-fast: false
       matrix:
         ruby:
-          - 2.5
           - 2.6
           - 2.7
           - 3.0

Gemfile

@@ -3,6 +3,7 @@ gem "nokogiri",       '~> 1.10'
 
 gemspec
 gem 'rdf',                  git: "https://github.com/ruby-rdf/rdf",                 branch: "develop"
+gem 'json-canonicalization',git: "https://github.com/dryruby/json-canonicalization",branch: "develop"
 
 group :development do
   gem 'ebnf',               git: "https://github.com/dryruby/ebnf",                 branch: "develop"

README.md

@@ -588,9 +588,9 @@ Note, the API method signatures differed in versions before 1.0, in that they al
   * {JSON::LD::Writer}
 
 ## Dependencies
-* [Ruby](https://ruby-lang.org/) (>= 2.4)
-* [RDF.rb](https://rubygems.org/gems/rdf) (~> 3.1)
-* [JSON](https://rubygems.org/gems/json) (>= 2.2)
+* [Ruby](https://ruby-lang.org/) (>= 2.6)
+* [RDF.rb](https://rubygems.org/gems/rdf) (~> 3.2)
+* [JSON](https://rubygems.org/gems/json) (>= 2.6)
 
 ## Installation
 The recommended installation method is via [RubyGems](https://rubygems.org/).

VERSION

@@ -1 +1 @@
-3.1.10
+3.2.0

json-ld.gemspec

@@ -23,26 +23,26 @@ Gem::Specification.new do |gem|
   gem.require_paths         = %w(lib)
   gem.test_files            = Dir.glob('spec/**/*.rb') + Dir.glob('spec/test-files/*')
 
-  gem.required_ruby_version = '>= 2.4'
+  gem.required_ruby_version = '>= 2.6'
   gem.requirements          = []
-  gem.add_runtime_dependency     'rdf',             '~> 3.1'
-  gem.add_runtime_dependency     'multi_json',      '~> 1.14'
+  gem.add_runtime_dependency     'rdf',             '~> 3.2'
+  gem.add_runtime_dependency     'multi_json',      '~> 1.15'
   gem.add_runtime_dependency     'link_header',     '~> 0.0', '>= 0.0.8'
-  gem.add_runtime_dependency     'json-canonicalization', '~> 0.2'
+  gem.add_runtime_dependency     'json-canonicalization', '~> 0.3'
   gem.add_runtime_dependency     'htmlentities',     '~> 4.3'
-  gem.add_runtime_dependency     'rack',            '~> 2.0'
+  gem.add_runtime_dependency     'rack',            '~> 2.2'
   gem.add_development_dependency 'sinatra-linkeddata','~> 3.1'
   gem.add_development_dependency 'jsonlint',        '~> 0.3'  unless is_java
-  gem.add_development_dependency 'oj',              '~> 3.9'  unless is_java
+  gem.add_development_dependency 'oj',              '~> 3.13'  unless is_java
   gem.add_development_dependency 'yajl-ruby',       '~> 1.4'  unless is_java
   gem.add_development_dependency 'rack-test',       '~> 1.1'
-  gem.add_development_dependency 'rdf-isomorphic',  '~> 3.1'
-  gem.add_development_dependency 'rdf-spec',        '~> 3.1'
+  gem.add_development_dependency 'rdf-isomorphic',  '~> 3.2'
+  gem.add_development_dependency 'rdf-spec',        '~> 3.2'
   gem.add_development_dependency 'rdf-trig',        '~> 3.1'
   gem.add_development_dependency 'rdf-turtle',      '~> 3.1'
-  gem.add_development_dependency 'rdf-vocab',       '~> 3.1'
-  gem.add_development_dependency 'rdf-xsd',         '~> 3.1'
-  gem.add_development_dependency 'rspec',           '~> 3.9'
+  gem.add_development_dependency 'rdf-vocab',       '~> 3.2'
+  gem.add_development_dependency 'rdf-xsd',         '~> 3.2'
+  gem.add_development_dependency 'rspec',           '~> 3.10'
   gem.add_development_dependency 'rspec-its',       '~> 1.3'
   gem.add_development_dependency 'yard' ,           '~> 0.9'