The Case API now allows for filtering by and returning cases with tags. More details here.
The Activity API now allows for filtering by and returning activities with Case ID. The Case API now properly handles SQL operators for the contact_id field and returns the case_id.definition joined field with proper formatting Details.
The Find Contributions and Advanced Search now allow searching by card type. Task details.
The contribution summary report now allows for displaying and filtering by card type. Task details.
There is now a separate link for the credit card payment form for partially paid contributions. Task details.
The option value table is joined on contribution searches when option values could be provided through pseudoconstants, with improved performance. Details.
The "Your contribution has been submitted" text on contribution forms now only appears if the site is still waiting on notification of a successful transaction. Details
The registration date field now uses the more standard datepicker rather than the jCalendar widget when used in a profile. Task in Jira.
The bounce fetcher can now optionally create activities for tracked replies to CiviMail messages. Task details in Jira.
The repeating contribution and event income reports now have the developer tab. Task details.
The Activity Detail report now has the developer tab. Task details.
And number of bugfixes and smaller improvements!
Authorize.net users:: Prior to 4.7, CiviCRM forced Authorize.net to send out receipt emails regardless of Authorize.net configuration. From 4.7 onwards this will not happen and you should log into your Authorize.net interface and configure whether you want Authorize.net to send out receipts (in addition to those sent by CiviCRM).
Lybunt report users:: Some fields that were previously mandatory on Lybunt are now optional. On new reports they are on by default but you might need to check the fields you want are selected for existing reports.