diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..28cd875
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,30 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        ruby: ['3.0', '3.2']
+        mongoid: ['7_4', '8_0', '8_1']
+    env:
+      BUNDLE_GEMFILE: gemfiles/mongoid_${{ matrix.mongoid }}.gemfile
+      CI: 'true'
+    services:
+      mongo:
+        image: mongo:7.0
+        ports:
+          - 27017:27017
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ${{ matrix.ruby }}
+          bundler-cache: true
+      - run: bundle exec rspec
diff --git a/.gitignore b/.gitignore
index 31cafb5..489e485 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@ tmp
 *.o
 *.a
 mkmf.log
+gemfiles/*.gemfile.lock
diff --git a/changes.md b/changes.md
index 901b29d..44d1333 100644
--- a/changes.md
+++ b/changes.md
@@ -1,3 +1,9 @@
+# 0.3.0
+- Added GitHub Actions CI: Mongoid 7.4 / 8.0 / 8.1 x Ruby 3.0 / 3.2 against mongo:7.0
+- Verified compatibility with Mongoid 8.0 and 8.1
+- Fixed BulkSavable#bulk_assign NameError when no embeds are given
+- Fixed Nesting#nested_save! argument forwarding on Ruby 3
+- Loosened dev dependencies (mongoid >= 7.4, < 8.2; dropped bundler ~> 1.6)
 # 0.2.6
 - Upgraded Mongoid to 7.4.x
 # 0.2.5
diff --git a/gemfiles/mongoid_7_4.gemfile b/gemfiles/mongoid_7_4.gemfile
new file mode 100644
index 0000000..caf6ad3
--- /dev/null
+++ b/gemfiles/mongoid_7_4.gemfile
@@ -0,0 +1,5 @@
+source 'https://rubygems.org'
+
+gem 'mongoid', '~> 7.4.0'
+
+gemspec path: '..'
diff --git a/gemfiles/mongoid_8_0.gemfile b/gemfiles/mongoid_8_0.gemfile
new file mode 100644
index 0000000..d976ee6
--- /dev/null
+++ b/gemfiles/mongoid_8_0.gemfile
@@ -0,0 +1,5 @@
+source 'https://rubygems.org'
+
+gem 'mongoid', '~> 8.0.0'
+
+gemspec path: '..'
diff --git a/gemfiles/mongoid_8_1.gemfile b/gemfiles/mongoid_8_1.gemfile
new file mode 100644
index 0000000..6a394a4
--- /dev/null
+++ b/gemfiles/mongoid_8_1.gemfile
@@ -0,0 +1,5 @@
+source 'https://rubygems.org'
+
+gem 'mongoid', '~> 8.1.0'
+
+gemspec path: '..'
diff --git a/lib/mongoidal/bulk_savable.rb b/lib/mongoidal/bulk_savable.rb
index cfdf76c..115486c 100644
--- a/lib/mongoidal/bulk_savable.rb
+++ b/lib/mongoidal/bulk_savable.rb
@@ -8,7 +8,7 @@ module BulkSavable
     # If a specific set of embed relations are not provided then all embeds_many relations will be used
     def bulk_assign(attributes, *embeds)
       if embeds.blank?
-        embeds = self.class.relations.select {|k, v| v.is_a?(Mongoid::Association::Referenced::EmbesMany) }.keys
+        embeds = self.class.relations.select {|k, v| v.is_a?(Mongoid::Association::Embedded::EmbedsMany) }.keys
       end
 
       root_attrs = attributes.except(*embeds)
diff --git a/lib/mongoidal/nesting.rb b/lib/mongoidal/nesting.rb
index fa01d2a..17bacbf 100644
--- a/lib/mongoidal/nesting.rb
+++ b/lib/mongoidal/nesting.rb
@@ -56,8 +56,8 @@ def nested_assign(attributes, position: nil)
     # and insert/update/delete them one by one based off of the existing data,
     # instead of just replacing the entire array like a normal save would do.
     # Any items not present within the new array will be destroyed
-    def nested_save!(attributes, *embeds, &block)
-      to_delete = nested_assign(attributes, *embeds)
+    def nested_save!(attributes, **options, &block)
+      to_delete = nested_assign(attributes, **options)
       if valid?
         block.call(to_delete) if block_given?
         to_delete.each(&:destroy)
diff --git a/lib/mongoidal/version.rb b/lib/mongoidal/version.rb
index fad807e..ec61efe 100644
--- a/lib/mongoidal/version.rb
+++ b/lib/mongoidal/version.rb
@@ -1,3 +1,3 @@
 module Mongoidal
-  VERSION = "0.2.6"
+  VERSION = "0.3.0"
 end
diff --git a/mongoidal.gemspec b/mongoidal.gemspec
index fc2e833..99879dc 100644
--- a/mongoidal.gemspec
+++ b/mongoidal.gemspec
@@ -18,10 +18,11 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_dependency "mongoid-slug"
-  spec.add_development_dependency "mongoid", '~> 7.4.0'
-  spec.add_development_dependency "bundler", "~> 1.6"
+  spec.add_development_dependency "mongoid", ">= 7.4", "< 8.2"
   spec.add_development_dependency "sidekiq"
   spec.add_development_dependency "globalid"
+  # json 3 rejects the quirks_mode option that ActiveSupport 7.x passes to JSON.generate
+  spec.add_development_dependency "json", "< 3"
   spec.add_development_dependency "rake"
   spec.add_development_dependency "rspec"
   spec.add_development_dependency "rspec-its"
diff --git a/spec/bulk_savable_spec.rb b/spec/bulk_savable_spec.rb
new file mode 100644
index 0000000..8a3effe
--- /dev/null
+++ b/spec/bulk_savable_spec.rb
@@ -0,0 +1,41 @@
+require 'spec_helper'
+
+class BulkParent
+  include Mongoid::Document
+  include Mongoidal::BulkSavable
+  field :name, type: String
+  embeds_many :kids, class_name: 'BulkKid'
+end
+
+class BulkKid
+  include Mongoid::Document
+  embedded_in :bulk_parent
+  field :name, type: String
+end
+
+describe Mongoidal::BulkSavable do
+  let(:parent) { BulkParent.create(name: 'Parent') }
+  let!(:kid1) { parent.kids.create(name: 'Kid 1') }
+  let!(:kid2) { parent.kids.create(name: 'Kid 2') }
+
+  # with no embeds given, every embeds_many relation is used
+  it 'updates, adds and flags deletes across embeds_many relations' do
+    to_delete = parent.bulk_assign(
+      'name' => 'Renamed',
+      'kids' => [
+        { 'id' => kid1.id.to_s, 'name' => 'Kid 1b' },
+        { 'id' => kid2.id.to_s, 'deleted' => true },
+        { 'name' => 'Kid 3' }
+      ]
+    )
+
+    expect(parent.name).to eq 'Renamed'
+    expect(parent.kids.map(&:name)).to match_array ['Kid 1b', 'Kid 2', 'Kid 3']
+    expect(to_delete).to eq [kid2]
+  end
+
+  it 'accepts an explicit list of embeds' do
+    parent.bulk_assign({ kids: [{ id: kid1.id, name: 'Kid 1b' }] }, :kids)
+    expect(parent.kids.find(kid1.id).name).to eq 'Kid 1b'
+  end
+end
diff --git a/spec/global_id_spec.rb b/spec/global_id_spec.rb
new file mode 100644
index 0000000..48d0dc2
--- /dev/null
+++ b/spec/global_id_spec.rb
@@ -0,0 +1,42 @@
+require 'spec_helper'
+
+class GidParent
+  include Mongoid::Document
+  include Mongoidal::Identification
+  field :name, type: String
+  embeds_many :kids, class_name: 'GidKid'
+end
+
+class GidKid
+  include Mongoid::Document
+  include Mongoidal::Identification
+  embedded_in :gid_parent
+  field :name, type: String
+end
+
+GlobalID.app = 'mongoidal'
+
+describe Mongoidal::Identification do
+  let(:parent) { GidParent.create(name: 'Parent') }
+  let(:kid) { parent.kids.create(name: 'Kid') }
+
+  def locate(doc)
+    Mongoidal::Locator.new(GlobalID.parse(doc.to_global_id.to_s)).locate
+  end
+
+  it 'round trips a root document' do
+    expect(locate(parent)).to eq parent
+  end
+
+  it 'round trips an embedded document through its root' do
+    expect(locate(kid)).to eq kid
+  end
+
+  it 'rebuilds a destroyed embedded document from its attributes' do
+    kid.destroy
+    gid = kid.to_global_id.to_s
+    found = Mongoidal::Locator.new(GlobalID.parse(gid)).locate
+    expect(found.name).to eq 'Kid'
+    expect(found).to be_destroyed
+  end
+end
diff --git a/spec/nesting_spec.rb b/spec/nesting_spec.rb
index eeac66d..0407e31 100644
--- a/spec/nesting_spec.rb
+++ b/spec/nesting_spec.rb
@@ -76,7 +76,7 @@ def self.find_within_collection(collection, attrs)
     end
 
     it 'should match using find_within_collection' do
-      parent.nested_save!(kids:[{name: 'Kid 1', age: 4}])
+      parent.nested_save!({kids: [{name: "Kid 1", age: 4}]})
       expect(kid1.age).to eq 4
     end
 
@@ -107,7 +107,7 @@ def self.find_within_collection(collection, attrs)
     # this is standard functionality
     it 'should update existing favorite' do
       expect(parent.favorite.name).to eq 'Kid 1'
-      parent.nested_assign(favorite: {name: 'Kid 2'})
+      parent.nested_assign({favorite: {name: 'Kid 2'}})
       expect(parent.favorite.id).to eq favorite.id
     end
   end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 2107a59..8ae14d8 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -35,7 +35,7 @@
   end
 
   config.after(:suite) do
-    Mongoid::Threaded.sessions[:default].drop if ENV['CI']
+    Mongoid.default_client.database.drop if ENV["CI"]
   end
 
   # rspec-expectations config goes here. You can use an alternate