Released 3.4.1 2022-07-05

This is a minor release to provide out-of-the-box compatibility with the merge

of libldap and libldap_r that happened with OpenLDAP's 2.5 release.

The following undocumented functions are deprecated and scheduled for removal:

- ``ldap.cidict.strlist_intersection``

- ``ldap.cidict.strlist_minus``

- ``ldap.cidict.strlist_union``

The following deprecated option has been removed:

- ``OPT_X_TLS``

Doc/

* SASL option usage has been clarified

Lib/

* ppolicy control definition has been updated to match Behera draft 11

Modules/

* By default, compile against libldap, checking whether it provides a

threadsafe implementation at runtime

* When decoding controls, the module can now distinguish between no value

(now exposed as ``None``) and an empty value (exposed as ``b''``)

* Several new OpenLDAP options are now supported:

* ``OPT_SOCKET_BIND_ADDRESSES``

* ``OPT_TCP_USER_TIMEOUT``

* ``OPT_X_SASL_MAXBUFSIZE``

* ``OPT_X_SASL_SECPROPS``

* ``OPT_X_TLS_ECNAME``

* ``OPT_X_TLS_PEERCERT``

* ``OPT_X_TLS_PROTOCOL``-related options and constants

Fixes:

* Encoding/decoding of boolean controls has been corrected

* ldap.schema.models.Entry is now usable

* ``method`` keyword to ReconnectLDAPObject.bind_s is now usable

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