v20.0.12

[Flyingmana]

v20.0.12 - 2021-06-25

fix version in getOpenMageVersionInfo()

v20.0.11 - 2021-06-25

#1567 Fixed incorrect regex in Varien_Object _underscore()
#1544 Prevent backend_type from being changed automatically on attribute save without the admin realizing
#1555 Performance improvement for catalog product images
#1600 Remove "default" themes from 20.x
#1610 Reinstate getters and setters for $_pageHelpUrl which some third party modules still use
#1532 add Possibility to disable global search in backend
#1513 Add redis as a valid option for global/session_save (and activate Cm_RedisSession module by default)
#1499 Set proper HTTP response code on error
#1623 steamClose dosent void this->_streamHandler in php8
#1073 (BC) Removed IE compatibility
#1523 don't redirect to "downloader" (which doesn't exists)

and merged changes from v19.4.14

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This discussion was created from the release v20.0.12 .