Changes for 6.0.28

6.0.28rc1 was released as 6.0.28 without any changes

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Changes for 6.0.28rc1

6.0.12 was released as 6.0.28rc1 without any changes

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Changes for 6.0.27

6.0.27rc1 was released as 6.0.27 without any changes

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Changes for 6.0.27rc1

New features:
[ZBXNEXT-8674] implement TLS connection configuration (rzvejs)
[ZBXNEXT-8672] implement metric handlers (rzvejs)
[ZBXNEXT-6235] initial implementation for MSSQL loadable Zabbix agent 2 plugin (rzvejs)

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