v1.2.7 is the last version in v1.2

Improvements:

• Display names for BREADs and field-titles can now be translated (#4057)
• Show display names in search form (#4284)
• Allows NULL for relationships (#4249)
• Use correct fieldname in belongsTo relationships (#4228)
• Allow tables with enum-fields to be saved (#4234)
• Keep translated-values when errors occur durring add (#4076)
• Hide delete button when user has no permission in settings (#4292)
• Show checkboxes column if mass action is displayed (#4151)
• Change sidebar logo size (#4163)

Bugfixes:

• User FQCN for Model class (#4226)
• Order sub-menu-items (#4186)
• Use custom guard inside postLogin & authorize (#4197)

Language updates:

• Spanish (#4241, #4276, #4307)
• Turkish (#4221, #4220, #4209)