Comment 9 for bug 1454917

The same is true during a downgrade.

# yum downgrade mysql-community*
Loaded plugins: downloadonly, fastestmirror, replace
Setting up Downgrade Process
Loading mirror speeds from cached hostfile
No Match for available package: mysql-community-bench-5.6.20-4.el6.x86_64
No Match for available package: mysql-community-embedded-5.6.15-1.el6.i686
No Match for available package: mysql-community-embedded-5.6.15-1.el6.x86_64
No Match for available package: mysql-community-embedded-devel-5.6.15-1.el6.i686
No Match for available package: mysql-community-embedded-devel-5.6.15-1.el6.x86_64
No Match for available package: mysql-community-test-5.6.15-1.el6.x86_64
Resolving Dependencies
--> Running transaction check
---> Package mysql-community-client.x86_64 0:5.6.26-2.el6 will be a downgrade
---> Package mysql-community-client.x86_64 0:5.6.27-2.el6 will be erased
---> Package mysql-community-common.x86_64 0:5.6.26-2.el6 will be a downgrade
---> Package mysql-community-common.x86_64 0:5.6.27-2.el6 will be erased
---> Package mysql-community-devel.x86_64 0:5.6.26-2.el6 will be a downgrade
---> Package mysql-community-devel.x86_64 0:5.6.27-2.el6 will be erased
---> Package mysql-community-libs.x86_64 0:5.6.26-2.el6 will be a downgrade
---> Package mysql-community-libs.x86_64 0:5.6.27-2.el6 will be erased
---> Package mysql-community-libs-compat.x86_64 0:5.6.26-2.el6 will be a downgrade
---> Package mysql-community-libs-compat.x86_64 0:5.6.27-2.el6 will be erased
---> Package mysql-community-release.noarch 0:el6-4 will be a downgrade
---> Package mysql-community-release.noarch 0:el6-5 will be erased
---> Package mysql-community-server.x86_64 0:5.6.26-2.el6 will be a downgrade
---> Package mysql-community-server.x86_64 0:5.6.27-2.el6 will be erased
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package Arch Version Repository Size
================================================================================
Downgrading:
 mysql-community-client x86_64 5.6.26-2.el6 mysql56-community 18 M
 mysql-community-common x86_64 5.6.26-2.el6 mysql56-community 307 k
 mysql-community-devel x86_64 5.6.26-2.el6 mysql56-community 3.2 M
 mysql-community-libs x86_64 5.6.26-2.el6 mysql56-community 1.9 M
 mysql-community-libs-compat x86_64 5.6.26-2.el6 mysql56-community 1.6 M
 mysql-community-release noarch el6-4 mysql-tools-community 5.0 k
 mysql-community-server x86_64 5.6.26-2.el6 mysql56-community 53 M

Transaction Summary
================================================================================
Downgrade 7 Package(s)

Total download size: 78 M
Is this ok [y/N]: y
Downloading Packages:
(1/7): mysql-community-client-5.6.26-2.el6.x86_64.rpm | 18 MB 00:00
(2/7): mysql-community-common-5.6.26-2.el6.x86_64.rpm | 307 kB 00:00
(3/7): mysql-community-devel-5.6.26-2.el6.x86_64.rpm | 3.2 MB 00:00
(4/7): mysql-community-libs-5.6.26-2.el6.x86_64.rpm | 1.9 MB 00:00
(5/7): mysql-community-libs-compat-5.6.26-2.el6.x86_64.r | 1.6 MB 00:00
(6/7): mysql-community-release-el6-4.noarch.rpm | 5.0 kB 00:00
(7/7): mysql-community-server-5.6.26-2.el6.x86_64.rpm | 53 MB 00:01
--------------------------------------------------------------------------------
Total 29 MB/s | 78 MB 00:02
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing : mysql-community-common-5.6.26-2.el6.x86_64 1/14
  Installing : mysql-community-libs-5.6.26-2.el6.x86_64 2/14
  Installing : mysql-community-client-5.6.26-2.el6.x86_64 3/14
  Installing : mysql-community-server-5.6.26-2.el6.x86_64 4/14
  Installing : mysql-community-devel-5.6.26-2.el6.x86_64 5/14
  Installing : mysql-community-libs-compat-5.6.26-2.el6.x86_64 6/14
  Installing : mysql-community-release-el6-4.noarch 7/14
  Cleanup : mysql-community-devel-5.6.27-2.el6.x86_64 8/14
  Cleanup : mysql-community-release-el6-5.noarch 9/14
  Cleanup : mysql-community-server-5.6.27-2.el6.x86_64 10/14
  Cleanup : mysql-community-client-5.6.27-2.el6.x86_64 11/14
  Cleanup : mysql-community-libs-compat-5.6.27-2.el6.x86_64 12/14
  Cleanup : mysql-community-libs-5.6.27-2.el6.x86_64 13/14
  Cleanup : mysql-community-common-5.6.27-2.el6.x86_64 14/14
  Verifying : mysql-community-common-5.6.26-2.el6.x86_64 1/14
  Verifying : mysql-community-devel-5.6.26-2.el6.x86_64 2/14
  Verifying : mysql-community-release-el6-4.noarch 3/14
  Verifying : mysql-community-libs-5.6.26-2.el6.x86_64 4/14
  Verifying : mysql-community-server-5.6.26-2.el6.x86_64 5/14
  Verifying : mysql-community-libs-compat-5.6.26-2.el6.x86_64 6/14
  Verifying : mysql-community-client-5.6.26-2.el6.x86_64 7/14
  Verifying : mysql-community-common-5.6.27-2.el6.x86_64 8/14
  Verifying : mysql-community-libs-compat-5.6.27-2.el6.x86_64 9/14
  Verifying : mysql-community-libs-5.6.27-2.el6.x86_64 10/14
  Verifying : mysql-community-devel-5.6.27-2.el6.x86_64 11/14
  Verifying : mysql-community-server-5.6.27-2.el6.x86_64 12/14
  Verifying : mysql-community-client-5.6.27-2.el6.x86_64 13/14
  Verifying : mysql-community-release-el6-5.noarch 14/14

Removed:
  mysql-community-client.x86_64 0:5.6.27-2.el6
  mysql-community-common.x86_64 0:5.6.27-2.el6
  mysql-community-devel.x86_64 0:5.6.27-2.el6
  mysql-community-libs.x86_64 0:5.6.27-2.el6
  mysql-community-libs-compat.x86_64 0:5.6.27-2.el6
  mysql-community-release.noarch 0:el6-5
  mysql-community-server.x86_64 0:5.6.27-2.el6

Installed:
  mysql-community-client.x86_64 0:5.6.26-2.el6
  mysql-community-common.x86_64 0:5.6.26-2.el6
  mysql-community-devel.x86_64 0:5.6.26-2.el6
  mysql-community-libs.x86_64 0:5.6.26-2.el6
  mysql-community-libs-compat.x86_64 0:5.6.26-2.el6
  mysql-community-release.noarch 0:el6-4
  mysql-community-server.x86_64 0:5.6.26-2.el6

Complete!