If you're a teacher in Moodle, then this page will tell you about the major changes affecting you in Moodle 4.2.
Database UX improvements
Useful start page
A useful new start page makes it easier to set up your Database activity
Choice of presets
Three new Database presets are available.
Preview presets
Preview presets before using.
Approval status
Approval status is clearly visible and easy to manage.
Gradebook UX improvements
Single view report
Search by user, group or grade item in a clearer Single view interface
User report
Collapse categories for clearer viewing
Increase the number of elements in the grade scale
Question bank improvements
Inline editing
Edit a question title directly from the Question bank.
New columns
New 'Modified by' and 'Last used' columns
New in integrations
Updated TinyMCE editor
If enabled by admin, a new version of TinyMCE is available.
Guest access to BigBlueButton
If enabled by admin, teachers can invite external guests into the BigBlueButton room.
Various
Timezone in profile
Easily view a user's timezone from their profile.
Force a language in activities
Teachers may force a language in an activity as well as in the course.
English language term change
'Label' becomes 'Text and media area' in the English language (_en).
Other
View the time an activity was completed as well as its date.