- Authorization schearios: The "default" scenario files named `*.default` (regular file or symbolic link) are no longer available [\#528](https://github.com/sympa-community/sympa/pull/528)[\#540](https://github.com/sympa-community/sympa/pull/540). See also "[Upgrading notes](https://sympa-community.github.io/manual/upgrade/notes.html#upgrading-from-sympa-62x-or-earlier)".
- WWSympa: LDAP authentication will no longer perform search operation twice [\#453](https://github.com/sympa-community/sympa/issues/453). Now it retrieves entry for the user by a search operation at once, then checks if account is available by a bind operation.
- WWSympa: `sympa_altemails` cookie will no longer be set [\#487](https://github.com/sympa-community/sympa/issues/487). `alternative_email_attribute` parameter in `auth.conf` was deprecated.
- Primary `auth.conf`, `crawlers_detection.conf` and `trusted_applications.conf` will be used by non-primary domains by default [\#432](https://github.com/sympa-community/sympa/issues/432). Previously primary ones were omitted.
**Implemented enhancements:**
- Feature request: a "delete my account" button [\#300](https://github.com/sympa-community/sympa/issues/300)
- Add a global 'quiet_subscription' setting which enforce the "quiet add" policy [\#503](https://github.com/sympa-community/sympa/issues/503)
- Weaken sympa and wwsympa/sympa soap link [\#525](https://github.com/sympa-community/sympa/pull/525)([xavierba](https://github.com/xavierba))
**Fixed bugs:**
- Inconsistent location of messge footer/header files [\#507](https://github.com/sympa-community/sympa/issues/507)
- Issue with the message sent to owners to allow unsubscribing [\#469](https://github.com/sympa-community/sympa/issues/469)
- deleting subscribers with empty user selection [\#408](https://github.com/sympa-community/sympa/issues/408)
- WWSympa: Owners/moderators in list panel aren't updated [\#543](https://github.com/sympa-community/sympa/pull/543)([ikedas](https://github.com/ikedas))
- Owner page is empty [\#541](https://github.com/sympa-community/sympa/pull/541)([ikedas](https://github.com/ikedas))
- Mail command unavailable in confirmation requests [\#534](https://github.com/sympa-community/sympa/pull/534)([ikedas](https://github.com/ikedas))
- A scalar parameter in list config without value is warned [\#515](https://github.com/sympa-community/sympa/pull/515)([ikedas](https://github.com/ikedas))