LM-114 GEO: When GEO is running in Cloud High Availability (HA) Mode, DNS remains running on the standby unit as well as the active unit. This issue has been fixed.
LM-113 Single Sign On - LDAP: Fixed issues associated with LDAP SSO no longer working after an upgrade to LMOS 7.2.53. The issues appeared in conjunction with log messages like the following:

ssomgr: ... Couldn't bind: [LDAP-AD] [ip-addresses-omitted]: 32, No such objectssomgr: do_sso_ldap_check: Could not get ldap_result for (credentials-omitted): 32 [No such object]
LM-108 Caching: Fixed an issue that caused expired cache entries to remain in the cache after the associated Virtual Service is stopped and restarted.
LM-86 HTTP/2 and Chrome: Fixed issues that could cause random client reconnect issues when accessing a website using the Chrome browser.
LM-85 WAF / ESP: Fixed an issue where modifying the WAF or ESP configuration of a Virtual Service can cause the LoadMaster to reboot.
LM-83 Layer 7: Fixed an internal issue that could cause memory exhaustion under very heavy load.