diff --git a/CODEOWNERS b/CODEOWNERS
new file mode 100644
index 00000000..f616f6a1
--- /dev/null
+++ b/CODEOWNERS
@@ -0,0 +1 @@
+* @doctolib/couchbase-guild
diff --git a/couchbase-orm.gemspec b/couchbase-orm.gemspec
index aad5fefc..752861c3 100644
--- a/couchbase-orm.gemspec
+++ b/couchbase-orm.gemspec
@@ -13,10 +13,10 @@ Gem::Specification.new do |gem|
     gem.required_ruby_version = '>= 2.1.0'
     gem.require_paths = ["lib"]
 
-    gem.add_runtime_dependency     'activemodel',   ENV["ACTIVE_MODEL_VERSION"] || '>= 5.2'
-    gem.add_runtime_dependency     'activerecord',  ENV["ACTIVE_MODEL_VERSION"] || '>= 5.2'
+    gem.add_runtime_dependency     'activemodel',   ENV["ACTIVE_MODEL_VERSION"] || '>= 5.2', '< 7.1'
+    gem.add_runtime_dependency     'activerecord',  ENV["ACTIVE_MODEL_VERSION"] || '>= 5.2', '< 7.1'
 
-    gem.add_runtime_dependency     'couchbase',    '~> 3.3.0'
+    gem.add_runtime_dependency     'couchbase',    '~> 3.4.2'
     gem.add_runtime_dependency     'radix',        '~> 2.2' # converting numbers to and from any base
 
     gem.add_development_dependency 'rake',         '~> 12.2'
diff --git a/lib/couchbase-orm/associations.rb b/lib/couchbase-orm/associations.rb
index 71514d5b..ce08b74d 100644
--- a/lib/couchbase-orm/associations.rb
+++ b/lib/couchbase-orm/associations.rb
@@ -32,6 +32,8 @@ def belongs_to(name, **options)
                     val = if options[:polymorphic]
                         ::CouchbaseOrm.try_load(self.send(ref))
                     else
+                        raise ActiveRecord::StrictLoadingViolationError, "#{self.class} is marked as strict_loading and #{assoc} cannot be lazily loaded." if strict_loading?
+
                         assoc.constantize.find(self.send(ref), quiet: true)
                     end
                     instance_variable_set(instance_var, val)
@@ -81,6 +83,8 @@ def has_and_belongs_to_many(name, **options)
                     val = if options[:polymorphic]
                         ::CouchbaseOrm.try_load(ref_value) if ref_value
                     else
+                        raise ActiveRecord::StrictLoadingViolationError, "#{self.class} is marked as strict_loading and #{assoc} cannot be lazily loaded." if strict_loading?
+
                         assoc.constantize.find(ref_value) if ref_value
                     end
                     val = Array.wrap(val || [])
diff --git a/lib/couchbase-orm/base.rb b/lib/couchbase-orm/base.rb
index 0f4d98cd..ddb2e943 100644
--- a/lib/couchbase-orm/base.rb
+++ b/lib/couchbase-orm/base.rb
@@ -123,7 +123,6 @@ class Document
         extend Enum
 
         define_model_callbacks :initialize, :only => :after
-        define_model_callbacks :create, :destroy, :save, :update
 
         Metadata = Struct.new(:cas)
 
@@ -212,6 +211,8 @@ class Base < Document
         extend Index
         extend IgnoredProperties
 
+        define_model_callbacks :create, :destroy, :save, :update
+
         class << self
             def connect(**options)
                 @bucket = BucketProxy.new(::MTLibcouchbase::Bucket.new(**options))
@@ -241,7 +242,7 @@ def uuid_generator=(generator)
                 @uuid_generator = generator
             end
 
-            def find(*ids, quiet: false)
+            def find(*ids, quiet: false, with_strict_loading: false)
                 CouchbaseOrm.logger.debug { "Base.find(l##{ids.length}) #{ids}" }
 
                 ids = ids.flatten.select { |id| id.present? }
@@ -253,9 +254,14 @@ def find(*ids, quiet: false)
                 records = quiet ? collection.get_multi(ids, transcoder: transcoder) : collection.get_multi!(ids, transcoder: transcoder)
                 CouchbaseOrm.logger.debug { "Base.find found(#{records})" }
                 records = records.zip(ids).map { |record, id|
-                    self.new(record, id: id) if record
-                }
-                records.compact!
+                    next unless record
+                    next if record.error
+                    new(record, id: id).tap do |instance|
+                        if with_strict_loading
+                            instance.strict_loading!
+                        end
+                    end
+                }.compact
                 ids.length > 1 ? records : records[0]
             end
 
diff --git a/lib/couchbase-orm/n1ql.rb b/lib/couchbase-orm/n1ql.rb
index 352ed30d..4dd5fe2d 100644
--- a/lib/couchbase-orm/n1ql.rb
+++ b/lib/couchbase-orm/n1ql.rb
@@ -8,6 +8,7 @@ module CouchbaseOrm
     module N1ql
         extend ActiveSupport::Concern
         NO_VALUE = :no_value_specified
+        DEFAULT_SCAN_CONSISTENCY = :request_plus
         # sanitize for injection query
         def self.sanitize(value)
             if value.is_a?(String)
@@ -19,6 +20,13 @@ def self.sanitize(value)
             end
         end
 
+        def self.config(new_config = nil)
+            Thread.current['__couchbaseorm_n1ql_config__'] = new_config if new_config
+            Thread.current['__couchbaseorm_n1ql_config__'] || {
+                scan_consistency: DEFAULT_SCAN_CONSISTENCY
+            }
+        end
+
         module ClassMethods
             # Defines a query N1QL for the model
             #
@@ -49,7 +57,7 @@ def n1ql(name, query_fn: nil, emit_key: [], custom_order: nil, **options)
                 @indexes[name] = method_opts
 
                 singleton_class.__send__(:define_method, name) do |key: NO_VALUE, **opts, &result_modifier|
-                    opts = options.merge(opts).reverse_merge(scan_consistency: :request_plus)
+                    opts = options.merge(opts).reverse_merge(scan_consistency: CouchbaseOrm::N1ql.config[:scan_consistency])
                     values = key == NO_VALUE ? NO_VALUE : convert_values(method_opts[:emit_key], key)
                     current_query = run_query(method_opts[:emit_key], values, query_fn, custom_order: custom_order, **opts.except(:include_docs, :key))
                     if result_modifier
@@ -116,7 +124,7 @@ def run_query(keys, values, query_fn, custom_order: nil, descending: false, limi
                     limit = build_limit(limit)
                     n1ql_query = "select raw meta().id from `#{bucket_name}` where #{where} order by #{order} #{limit}"
                     result = cluster.query(n1ql_query, Couchbase::Options::Query.new(**options))
-                    CouchbaseOrm.logger.debug { "N1QL query: #{n1ql_query} return #{result.rows.to_a.length} rows" }
+                    CouchbaseOrm.logger.debug  "N1QL query: #{n1ql_query} return #{result.rows.to_a.length} rows with scan_consistency : #{options[:scan_consistency]}"
                     N1qlProxy.new(result)
                 end
             end
diff --git a/lib/couchbase-orm/persistence.rb b/lib/couchbase-orm/persistence.rb
index efa6f8ec..a3704cc0 100644
--- a/lib/couchbase-orm/persistence.rb
+++ b/lib/couchbase-orm/persistence.rb
@@ -209,7 +209,7 @@ def reload
 
             CouchbaseOrm.logger.debug "Data - Get #{id}"
             resp = self.class.collection.get!(id)
-            assign_attributes(decode_encrypted_attributes(resp.content.except("id"))) # API return a nil id
+            assign_attributes(decode_encrypted_attributes(resp.content.except("id", *self.class.ignored_properties ))) # API return a nil id
             @__metadata__.cas = resp.cas
 
             reset_associations
diff --git a/lib/couchbase-orm/proxies/collection_proxy.rb b/lib/couchbase-orm/proxies/collection_proxy.rb
index 9ddf54c6..5492994c 100644
--- a/lib/couchbase-orm/proxies/collection_proxy.rb
+++ b/lib/couchbase-orm/proxies/collection_proxy.rb
@@ -21,8 +21,7 @@ def get_multi!(*ids, **options)
         end
 
         def get_multi(*ids, **options)
-            result = @proxyfied.get_multi(*ids, Couchbase::Options::GetMulti.new(**options))
-            result.reject(&:error)
+            @proxyfied.get_multi(*ids, Couchbase::Options::GetMulti.new(**options))
         end
 
         def remove!(id, **options)
diff --git a/lib/couchbase-orm/relation.rb b/lib/couchbase-orm/relation.rb
index 8a92ece7..006b8314 100644
--- a/lib/couchbase-orm/relation.rb
+++ b/lib/couchbase-orm/relation.rb
@@ -3,19 +3,20 @@ module Relation
         extend ActiveSupport::Concern
 
         class CouchbaseOrm_Relation
-            def initialize(model:, where: where = nil, order: order = nil, limit: limit = nil, _not: _not = false)
-                CouchbaseOrm::logger.debug "CouchbaseOrm_Relation init: #{model} where:#{where.inspect} not:#{_not.inspect} order:#{order.inspect} limit: #{limit}"
+            def initialize(model:, where: where = nil, order: order = nil, limit: limit = nil, _not: _not = false, strict_loading: strict_loading = false)
+                CouchbaseOrm::logger.debug "CouchbaseOrm_Relation init: #{model} where:#{where.inspect} not:#{_not.inspect} order:#{order.inspect} limit: #{limit} strict_loading: #{strict_loading}"
                 @model = model
                 @limit = limit
                 @where = []
                 @order = {}
                 @order = merge_order(**order) if order
                 @where = merge_where(where, _not) if where
+                @strict_loading = strict_loading
                 CouchbaseOrm::logger.debug "- #{to_s}"
             end
 
             def to_s
-                "CouchbaseOrm_Relation: #{@model} where:#{@where.inspect} order:#{@order.inspect} limit: #{@limit}"
+                "CouchbaseOrm_Relation: #{@model} where:#{@where.inspect} order:#{@order.inspect} limit: #{@limit} strict_loading: #{@strict_loading}"
             end
 
             def to_n1ql
@@ -27,8 +28,8 @@ def to_n1ql
             end
 
             def execute(n1ql_query)
-                result = @model.cluster.query(n1ql_query, Couchbase::Options::Query.new(scan_consistency: :request_plus))
-                CouchbaseOrm.logger.debug { "Relation query: #{n1ql_query} return #{result.rows.to_a.length} rows" }
+                result = @model.cluster.query(n1ql_query, Couchbase::Options::Query.new(scan_consistency: CouchbaseOrm::N1ql.config[:scan_consistency]))
+                CouchbaseOrm.logger.debug { "Relation query: #{n1ql_query} return #{result.rows.to_a.length} rows with scan_consistency : #{CouchbaseOrm::N1ql.config[:scan_consistency]}" }
                 N1qlProxy.new(result)
             end
 
@@ -51,16 +52,25 @@ def ids
                 query.to_a
             end
 
+            def strict_loading
+                CouchbaseOrm_Relation.new(**initializer_arguments.merge(strict_loading: true))
+            end
+
+            def strict_loading?
+                !!@strict_loading
+            end
+
             def first
-                result = @model.cluster.query(self.limit(1).to_n1ql, Couchbase::Options::Query.new(scan_consistency: :request_plus))
-                first_id = result.rows.to_a.first
-                @model.find(first_id) if first_id
+                result = @model.cluster.query(self.limit(1).to_n1ql, Couchbase::Options::Query.new(scan_consistency: CouchbaseOrm::N1ql.config[:scan_consistency]))
+                return unless (first_id = result.rows.to_a.first)
+
+                @model.find(first_id, with_strict_loading: @strict_loading)
             end
 
             def last
-                result = @model.cluster.query(to_n1ql, Couchbase::Options::Query.new(scan_consistency: :request_plus))
+                result = @model.cluster.query(to_n1ql, Couchbase::Options::Query.new(scan_consistency: CouchbaseOrm::N1ql.config[:scan_consistency]))
                 last_id = result.rows.to_a.last
-                @model.find(last_id) if last_id
+                @model.find(last_id, with_strict_loading: @strict_loading) if last_id
             end
 
             def count
@@ -89,7 +99,7 @@ def pluck(*fields)
             def to_ary
                 ids = query.results
                 return [] if ids.empty?
-                Array(ids && @model.find(ids))
+                Array(ids && @model.find(ids, with_strict_loading: @strict_loading))
             end
 
             alias :to_a :to_ary
@@ -146,7 +156,7 @@ def build_limit
             end
 
             def initializer_arguments
-                { model: @model, order: @order, where: @where, limit: @limit }
+                { model: @model, order: @order, where: @where, limit: @limit, strict_loading: @strict_loading }
             end
 
             def merge_order(*lorder, **horder)
@@ -233,7 +243,7 @@ def relation
 
             delegate :ids, :update_all, :delete_all, :count, :empty?, :filter, :reduce, :find_by, to: :all
 
-            delegate :where, :not, :order, :limit, :all, to: :relation
+            delegate :where, :not, :order, :limit, :all, :strict_loading, :strict_loading?, to: :relation
         end
     end
 end
diff --git a/lib/couchbase-orm/utilities/ignored_properties.rb b/lib/couchbase-orm/utilities/ignored_properties.rb
index 7ef5cfd9..86ac8386 100644
--- a/lib/couchbase-orm/utilities/ignored_properties.rb
+++ b/lib/couchbase-orm/utilities/ignored_properties.rb
@@ -1,9 +1,15 @@
 module CouchbaseOrm
     module IgnoredProperties
+        def ignored_properties=(properties)
+            @@ignored_properties = properties.map(&:to_s)
+        end
+
         def ignored_properties(*args)
+            if args.any?
+                CouchbaseOrm.logger.warn('Passing aruments to `.ignored_properties` is deprecated. PLease use `.ignored_properties=` intead.')
+                return send :ignored_properties=, args
+            end
             @@ignored_properties ||= []
-            return @@ignored_properties if args.empty?
-            @@ignored_properties += args.map(&:to_s)
         end
     end
 end
diff --git a/lib/couchbase-orm/views.rb b/lib/couchbase-orm/views.rb
index b2e55493..20135086 100644
--- a/lib/couchbase-orm/views.rb
+++ b/lib/couchbase-orm/views.rb
@@ -66,7 +66,7 @@ def view(name, map: nil, emit_key: nil, reduce: nil, **options)
                 @views[name] = method_opts
 
                 singleton_class.__send__(:define_method, name) do |**opts, &result_modifier|
-                    opts = options.merge(opts).reverse_merge(scan_consistency: :request_plus)
+                    opts = options.merge(opts).reverse_merge(scan_consistency: CouchbaseOrm::N1ql.config[:scan_consistency])
                     CouchbaseOrm.logger.debug("View [#{@design_document}, #{name.inspect}] options: #{opts.inspect}")
                     if result_modifier
                         include_docs(bucket.view_query(@design_document, name.to_s, Couchbase::Options::View.new(**opts.except(:include_docs)))).map(&result_modifier)
diff --git a/spec/associations_spec.rb b/spec/associations_spec.rb
index ff45ed1d..9cebe410 100644
--- a/spec/associations_spec.rb
+++ b/spec/associations_spec.rb
@@ -5,6 +5,13 @@
 
 class Parent < CouchbaseOrm::Base
     attribute :name
+    has_and_belongs_to_many :children
+end
+
+class StrictLoadingParent < CouchbaseOrm::Base
+    attribute :name
+    has_and_belongs_to_many :children
+    self.strict_loading_by_default = true
 end
 
 class RandomOtherType < CouchbaseOrm::Base
@@ -209,4 +216,47 @@ class Part < CouchbaseOrm::Base
             it_behaves_like "ActiveModel"
         end
     end
+
+    describe 'strict_loading' do
+        let(:parent) {Parent.create!(name: 'joe')}
+        let(:child) {Child.create!(name: 'bob', parent_id: parent.id)}
+        context 'instance strict loading' do
+            it 'raises StrictLoadingViolationError on lazy loading child relation' do
+                expect {child.parent.id}.not_to raise_error
+                expect_strict_loading_error_on_calling_parent(Child.find(child.id).tap{|child| child.strict_loading!})
+            end
+        end
+        context 'scope strict loading' do
+            it 'raises StrictLoadingViolationError on lazy loading child relation' do
+                expect_strict_loading_error_on_calling_parent(Child.where(id: child.id).strict_loading.first)
+                expect_strict_loading_error_on_calling_parent(Child.strict_loading.where(id: child.id).first)
+                expect_strict_loading_error_on_calling_parent(Child.strict_loading.where(id: child.id).last)
+                expect_strict_loading_error_on_calling_parent(Child.strict_loading.where(id: child.id).to_a.first)
+                expect_strict_loading_error_on_calling_parent(Child.strict_loading.all.to_a.first)
+            end
+
+            it 'does not raise StrictLoadingViolationError on lazy loading child relation without declaring it' do
+                expect_strict_loading_error_on_calling_parent(Child.strict_loading.where(id: child.id).first)
+                expect { Child.where(id: child.id).last.parent}.not_to raise_error
+            end
+
+            it 'raises StrictLoadingViolationError on lazy loading habtm relation' do
+                expect {Parent.strict_loading.where(id: parent.id).first.children}.to raise_error(ActiveRecord::StrictLoadingViolationError)
+                # NB any action called on model class breaks find return type (find return an enumerator instead of a record)
+                expect {Parent.strict_loading.find(parent.id).first.children}.to raise_error(ActiveRecord::StrictLoadingViolationError)
+            end
+
+            it 'raises StrictLoadingViolationError on lazy loading relation when model is by default strict_loading' do
+                strict_loading_parent = StrictLoadingParent.create!(name: 'joe')
+                expect {StrictLoadingParent.where(id: strict_loading_parent.id).first.children}.to raise_error(ActiveRecord::StrictLoadingViolationError)
+                expect {Parent.find(parent.id).children}.not_to raise_error
+                # NB any action called on model class breaks find return type (find return an enumerator instead of a record)
+                expect {Parent.strict_loading.find(strict_loading_parent.id).first.children}.to raise_error(ActiveRecord::StrictLoadingViolationError)
+            end
+        end
+    end
+
+    def expect_strict_loading_error_on_calling_parent(child_instance)
+      expect {child_instance.parent}.to raise_error(ActiveRecord::StrictLoadingViolationError)
+    end
 end
diff --git a/spec/base_spec.rb b/spec/base_spec.rb
index f2e33d2c..2391c441 100644
--- a/spec/base_spec.rb
+++ b/spec/base_spec.rb
@@ -17,7 +17,7 @@ class TimestampTest < CouchbaseOrm::Base
 end
 
 class BaseTestWithIgnoredProperties < CouchbaseOrm::Base
-    ignored_properties :deprecated_property
+    self.ignored_properties += [:deprecated_property]
     attribute :name, :string
     attribute :job, :string
 end
@@ -212,6 +212,27 @@ class BaseTestWithIgnoredProperties < CouchbaseOrm::Base
         expect(base.created_at).to be_a(Time)
     end
 
+    it "should find multiple ids at same time" do
+        base1 = BaseTest.create!(name: 'joe1')
+        base2 = BaseTest.create!(name: 'joe2')
+        base3 = BaseTest.create!(name: 'joe3')
+        expect(BaseTest.find([base1.id, base2.id, base3.id])).to eq([base1, base2, base3])
+    end
+
+    it "should find multiple ids at same time with a not found id with exception" do
+        base1 = BaseTest.create!(name: 'joe1')
+        base2 = BaseTest.create!(name: 'joe2')
+        base3 = BaseTest.create!(name: 'joe3')
+        expect { BaseTest.find([base1.id, 't', base3.id]) }.to raise_error(Couchbase::Error::DocumentNotFound)
+    end
+
+    it "should find multiple ids at same time with a not found id without exception" do
+        base1 = BaseTest.create!(name: 'joe1')
+        base2 = BaseTest.create!(name: 'joe2')
+        base3 = BaseTest.create!(name: 'joe3')
+        expect(BaseTest.find([base1.id, 't', 't', base2.id, base3.id], quiet: true)).to eq([base1, base2, base3])
+    end
+
     describe BaseTest do
         it_behaves_like "ActiveModel"
     end
@@ -220,6 +241,15 @@ class BaseTestWithIgnoredProperties < CouchbaseOrm::Base
         it_behaves_like "ActiveModel"
     end
 
+    it 'does not expose callbacks for nested that wont never be called' do
+        expect{
+            class InvalidNested < CouchbaseOrm::NestedDocument
+                before_save {p "this should raise on loading class"}
+            end
+
+        }.to raise_error NoMethodError
+    end
+
     describe '.ignored_properties' do
 
 
@@ -254,6 +284,10 @@ class BaseTestWithIgnoredProperties < CouchbaseOrm::Base
                     from(%w[deprecated_property job name type]).
                     to(%w[job name type])
             end
+
+            it 'does not raise for reload' do
+                expect{ loaded_model.reload }.not_to raise_error
+            end
         end
     end
 end
diff --git a/spec/n1ql_spec.rb b/spec/n1ql_spec.rb
index 1418be31..c4266559 100644
--- a/spec/n1ql_spec.rb
+++ b/spec/n1ql_spec.rb
@@ -170,6 +170,26 @@ class N1QLTest < CouchbaseOrm::Base
         expect(Set.new(docs)).to eq(Set.new(%w[bob jane mel]))
     end
 
+    it "should log the default scan_consistency when n1ql query is executed" do
+        allow(CouchbaseOrm.logger).to receive(:debug)
+        N1QLTest.by_rating_reverse()
+        expect(CouchbaseOrm.logger).to have_received(:debug).at_least(:once).with("N1QL query: select raw meta().id from `#{CouchbaseOrm::Connection.bucket.name}` where type=\"n1_ql_test\"  order by name DESC  return 0 rows with scan_consistency : #{described_class::DEFAULT_SCAN_CONSISTENCY}")
+    end
+
+    it "should log the set scan_consistency when n1ql query is executed with a specific scan_consistency" do
+        allow(CouchbaseOrm.logger).to receive(:debug)
+        default_n1ql_config = CouchbaseOrm::N1ql.config
+        CouchbaseOrm::N1ql.config({ scan_consistency: :not_bounded })
+        puts "CouchbaseOrm::N1ql.config"
+        puts CouchbaseOrm::N1ql.config
+        N1QLTest.by_rating_reverse()
+        expect(CouchbaseOrm.logger).to have_received(:debug).at_least(:once).with("N1QL query: select raw meta().id from `#{CouchbaseOrm::Connection.bucket.name}` where type=\"n1_ql_test\"  order by name DESC  return 0 rows with scan_consistency : not_bounded")
+
+        CouchbaseOrm::N1ql.config(default_n1ql_config)
+        N1QLTest.by_rating_reverse()
+        expect(CouchbaseOrm.logger).to have_received(:debug).at_least(:once).with("N1QL query: select raw meta().id from `#{CouchbaseOrm::Connection.bucket.name}` where type=\"n1_ql_test\"  order by name DESC  return 0 rows with scan_consistency : #{described_class::DEFAULT_SCAN_CONSISTENCY}")
+    end
+
     after(:all) do
         N1QLTest.delete_all
     end