Log Message:
Changes 2.4.1:
Modules:
* New LDAP option OPT_X_TLS_PACKAGE available in OpenLDAP 2.4.26+
  to determine the name of the SSL/TLS package OpenLDAP was
  built with
Lib/
* ldap.modlist.modifyModlist(): New key-word argument
  case_ignore_attr_types used to define attribute types for which
  comparison of old and new values should be case-insensitive
* Minor changes to which data is sent to debug output for various
  trace levels
* Now tag [1] is used in ldap.extop.dds.RefreshResponse in
  compliance with RFC 2589 (fix available for OpenLDAP ITS-6886)
* New sub-module ldap.controls.sessiontrack implements request control
  as described in draft-wahl-ldap-session (needs pyasn1_modules)

Changes since 2.4.0:
* OpenLDAP 2.4.11+ required to build
* Support for extracting LDAPv3 extended controls in
  LDAP_RES_SEARCH_ENTRY responses
  (see SF-2829057, thanks to Rich)
* Generic support for LDAPv3 extended operations (thanks to Rich)
Lib/
* new class API in ldap.controls, not backwards-compatible!
* new sub-modules for ldap.controls, some require pyasn1 and pyasn1_modules
* New methods LDAPObject.result4() and LDAPObject.extop_result()
* New (optional) class ldap.controls.AssertionControl
* New helper module ldap.logger contains file-like object which
  sends trace messages to logging.log()
* Removed non-functional method LDAPObject.set_cache_options()
* Removed unused dictionary ldap.controls.knownLDAPControls
Modules/
* ldapcontrol.c: Fixed encode_assertion_control() and function is no longer
  hidden behind ifdef-statement