diff --git a/actioncable/CHANGELOG.md b/actioncable/CHANGELOG.md
index 6fc2f17d32..33a53164f5 100644
--- a/actioncable/CHANGELOG.md
+++ b/actioncable/CHANGELOG.md
@@ -1,3 +1,5 @@
+*   Subscription confirmations and rejections are now logged at the `DEBUG` level instead of `INFO`.
 
+    *DHH*
 
 Please check [6-0-stable](https://github.com/rails/rails/blob/6-0-stable/actioncable/CHANGELOG.md) for previous changes.
diff --git a/actioncable/lib/action_cable/channel/base.rb b/actioncable/lib/action_cable/channel/base.rb
index af061c843a..83ef2c7eaf 100644
--- a/actioncable/lib/action_cable/channel/base.rb
+++ b/actioncable/lib/action_cable/channel/base.rb
@@ -283,7 +283,7 @@ module ActionCable
 
         def transmit_subscription_confirmation
           unless subscription_confirmation_sent?
-            logger.info "#{self.class.name} is transmitting the subscription confirmation"
+            logger.debug "#{self.class.name} is transmitting the subscription confirmation"
 
             ActiveSupport::Notifications.instrument("transmit_subscription_confirmation.action_cable", channel_class: self.class.name) do
               connection.transmit identifier: @identifier, type: ActionCable::INTERNAL[:message_types][:confirmation]
@@ -298,7 +298,7 @@ module ActionCable
         end
 
         def transmit_subscription_rejection
-          logger.info "#{self.class.name} is transmitting the subscription rejection"
+          logger.debug "#{self.class.name} is transmitting the subscription rejection"
 
           ActiveSupport::Notifications.instrument("transmit_subscription_rejection.action_cable", channel_class: self.class.name) do
             connection.transmit identifier: @identifier, type: ActionCable::INTERNAL[:message_types][:rejection]
diff --git a/actionview/CHANGELOG.md b/actionview/CHANGELOG.md
index 71a8b3fdcb..de5478968d 100644
--- a/actionview/CHANGELOG.md
+++ b/actionview/CHANGELOG.md
@@ -1,3 +1,10 @@
+*   Log lines for partial renders and started template renders are now
+    emitted at the `DEBUG` level instead of `INFO`.
+
+    Completed template renders are still logged at the `INFO` level.
+
+    *DHH*
+
 *   ActionView::Helpers::SanitizeHelper: support rails-html-sanitizer 1.1.0.
 
     *Juanito Fatas*
diff --git a/actionview/lib/action_view/log_subscriber.rb b/actionview/lib/action_view/log_subscriber.rb
index 02ac0ce477..2ce502ba9b 100644
--- a/actionview/lib/action_view/log_subscriber.rb
+++ b/actionview/lib/action_view/log_subscriber.rb
@@ -23,7 +23,7 @@ module ActionView
     end
 
     def render_partial(event)
-      info do
+      debug do
         message = +"  Rendered #{from_rails_root(event.payload[:identifier])}"
         message << " within #{from_rails_root(event.payload[:layout])}" if event.payload[:layout]
         message << " (Duration: #{event.duration.round(1)}ms | Allocations: #{event.allocations})"
@@ -35,7 +35,7 @@ module ActionView
     def render_collection(event)
       identifier = event.payload[:identifier] || "templates"
 
-      info do
+      debug do
         "  Rendered collection of #{from_rails_root(identifier)}" \
         " #{render_count(event.payload)} (Duration: #{event.duration.round(1)}ms | Allocations: #{event.allocations})"
       end
@@ -83,7 +83,7 @@ module ActionView
     end
 
     def log_rendering_start(payload)
-      info do
+      debug do
         message = +"  Rendering #{from_rails_root(payload[:identifier])}"
         message << " within #{from_rails_root(payload[:layout])}" if payload[:layout]
         message
diff --git a/actionview/test/template/log_subscriber_test.rb b/actionview/test/template/log_subscriber_test.rb
index 8b160a7336..a2ed1f100c 100644
--- a/actionview/test/template/log_subscriber_test.rb
+++ b/actionview/test/template/log_subscriber_test.rb
@@ -56,8 +56,9 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render(template: "test/hello_world")
       wait
 
-      assert_equal 2, @logger.logged(:info).size
-      assert_match(/Rendering test\/hello_world\.erb/, @logger.logged(:info).first)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_equal 1, @logger.logged(:info).size
+      assert_match(/Rendering test\/hello_world\.erb/, @logger.logged(:debug).last)
       assert_match(/Rendered test\/hello_world\.erb/, @logger.logged(:info).last)
     end
   end
@@ -67,8 +68,9 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render(file: "#{FIXTURE_LOAD_PATH}/test/hello_world.erb")
       wait
 
-      assert_equal 2, @logger.logged(:info).size
-      assert_match(/Rendering test\/hello_world\.erb/, @logger.logged(:info).first)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_equal 1, @logger.logged(:info).size
+      assert_match(/Rendering test\/hello_world\.erb/, @logger.logged(:debug).last)
       assert_match(/Rendered test\/hello_world\.erb/, @logger.logged(:info).last)
     end
   end
@@ -78,8 +80,9 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render(plain: "TEXT")
       wait
 
-      assert_equal 2, @logger.logged(:info).size
-      assert_match(/Rendering text template/, @logger.logged(:info).first)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_equal 1, @logger.logged(:info).size
+      assert_match(/Rendering text template/, @logger.logged(:debug).last)
       assert_match(/Rendered text template/, @logger.logged(:info).last)
     end
   end
@@ -89,8 +92,9 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render(inline: "<%= 'TEXT' %>")
       wait
 
-      assert_equal 2, @logger.logged(:info).size
-      assert_match(/Rendering inline template/, @logger.logged(:info).first)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_equal 1, @logger.logged(:info).size
+      assert_match(/Rendering inline template/, @logger.logged(:debug).last)
       assert_match(/Rendered inline template/, @logger.logged(:info).last)
     end
   end
@@ -100,8 +104,8 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render(Customer.new("david"), greeting: "hi")
       wait
 
-      assert_equal 1, @logger.logged(:info).size
-      assert_match(/Rendered customers\/_customer\.html\.erb/, @logger.logged(:info).last)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_match(/Rendered customers\/_customer\.html\.erb/, @logger.logged(:debug).last)
     end
   end
 
@@ -113,8 +117,8 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("david") })
       wait
 
-      assert_equal 1, @logger.logged(:info).size
-      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, @logger.logged(:info).last)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, @logger.logged(:debug).last)
     end
   end
 
@@ -128,8 +132,8 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("david") })
       wait
 
-      assert_equal 2, @logger.logged(:info).size
-      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache hit\]/, @logger.logged(:info).last)
+      assert_equal 2, @logger.logged(:debug).size
+      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache hit\]/, @logger.logged(:debug).last)
     end
   end
 
@@ -140,14 +144,14 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
 
       @view.render(partial: "test/nested_cached_customer", locals: { cached_customer: Customer.new("Stan") })
       wait
-      *, cached_inner, uncached_outer = @logger.logged(:info)
+      *, cached_inner, uncached_outer = @logger.logged(:debug)
       assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, cached_inner)
       assert_match(/Rendered test\/_nested_cached_customer\.erb \(Duration: .*?ms \| Allocations: .*?\)$/, uncached_outer)
 
       # Second render hits the cache for the _cached_customer partial. Outer template's log shouldn't be affected.
       @view.render(partial: "test/nested_cached_customer", locals: { cached_customer: Customer.new("Stan") })
       wait
-      *, cached_inner, uncached_outer = @logger.logged(:info)
+      *, cached_inner, uncached_outer = @logger.logged(:debug)
       assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache hit\]/, cached_inner)
       assert_match(/Rendered test\/_nested_cached_customer\.erb \(Duration: .*?ms \| Allocations: .*?\)$/, uncached_outer)
     end
@@ -160,16 +164,16 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
 
       @view.render(partial: "test/cached_nested_cached_customer", locals: { cached_customer: Customer.new("Stan") })
       wait
-      *, cached_inner, cached_outer = @logger.logged(:info)
+      *, cached_inner, cached_outer = @logger.logged(:debug)
       assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, cached_inner)
       assert_match(/Rendered test\/_cached_nested_cached_customer\.erb (.*) \[cache miss\]/, cached_outer)
 
       # One render: inner partial skipped, because the outer has been cached.
-      assert_difference -> { @logger.logged(:info).size }, +1 do
+      assert_difference -> { @logger.logged(:debug).size }, +1 do
         @view.render(partial: "test/cached_nested_cached_customer", locals: { cached_customer: Customer.new("Stan") })
         wait
       end
-      assert_match(/Rendered test\/_cached_nested_cached_customer\.erb (.*) \[cache hit\]/, @logger.logged(:info).last)
+      assert_match(/Rendered test\/_cached_nested_cached_customer\.erb (.*) \[cache hit\]/, @logger.logged(:debug).last)
     end
   end
 
@@ -180,15 +184,15 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
 
       @view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("david") })
       wait
-      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, @logger.logged(:info).last)
+      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, @logger.logged(:debug).last)
 
       @view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("david") })
       wait
-      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache hit\]/, @logger.logged(:info).last)
+      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache hit\]/, @logger.logged(:debug).last)
 
       @view.render(partial: "test/cached_customer", locals: { cached_customer: Customer.new("Stan") })
       wait
-      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, @logger.logged(:info).last)
+      assert_match(/Rendered test\/_cached_customer\.erb (.*) \[cache miss\]/, @logger.logged(:debug).last)
     end
   end
 
@@ -197,8 +201,8 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render(partial: "test/customer", collection: [ Customer.new("david"), Customer.new("mary") ])
       wait
 
-      assert_equal 1, @logger.logged(:info).size
-      assert_match(/Rendered collection of test\/_customer.erb \[2 times\]/, @logger.logged(:info).last)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_match(/Rendered collection of test\/_customer.erb \[2 times\]/, @logger.logged(:debug).last)
     end
   end
 
@@ -207,8 +211,8 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render([ Customer.new("david"), Customer.new("mary") ], greeting: "hi")
       wait
 
-      assert_equal 1, @logger.logged(:info).size
-      assert_match(/Rendered collection of customers\/_customer\.html\.erb \[2 times\]/, @logger.logged(:info).last)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_match(/Rendered collection of customers\/_customer\.html\.erb \[2 times\]/, @logger.logged(:debug).last)
     end
   end
 
@@ -217,8 +221,8 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
       @view.render([ GoodCustomer.new("david"), Customer.new("mary") ], greeting: "hi")
       wait
 
-      assert_equal 1, @logger.logged(:info).size
-      assert_match(/Rendered collection of templates/, @logger.logged(:info).last)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_match(/Rendered collection of templates/, @logger.logged(:debug).last)
     end
   end
 
@@ -230,8 +234,8 @@ class AVLogSubscriberTest < ActiveSupport::TestCase
         locals: { greeting: "hi" })
       wait
 
-      assert_equal 1, @logger.logged(:info).size
-      assert_match(/Rendered collection of customers\/_customer\.html\.erb \[0 \/ 2 cache hits\]/, @logger.logged(:info).last)
+      assert_equal 1, @logger.logged(:debug).size
+      assert_match(/Rendered collection of customers\/_customer\.html\.erb \[0 \/ 2 cache hits\]/, @logger.logged(:debug).last)
     end
   end
 end