manual:installation:upgrade_notes_500

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manual:installation:upgrade_notes_500 [2020/04/14 09:31]
martins-v 'dropdown first entry' option removed (ZBXNEXT-5702)
manual:installation:upgrade_notes_500 [2020/04/24 10:34]
marinagen [DEV-1519] Redis plugin update
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 === Support of IBM DB2 dropped === === Support of IBM DB2 dropped ===
  
-The IBM DB2 database is no longer supported by Zabbix.uu+The IBM DB2 database is no longer supported by Zabbix.
  
 === Support of Internet Explorer 11 dropped === === Support of Internet Explorer 11 dropped ===
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   * Oracle 11.2   * Oracle 11.2
  
-=== Enable extended range of Numeric ​(float) values ===+=== Enable extended range of numeric ​(float) values ===
  
-Numeric (float) data type now supports precision of approximately 15 digits and range from approximately -1.79E+308 to 1.79E+308 (with exception of [[:​manual/​installation/​known_issues#​floating_point_values|PostgreSQL 11 and earlier versions]]). This is by default for new installations. However, when upgrading existing installations,​ a manual database upgrade patch must be applied. The patch will alter data columns of history and trends tables, which usually contain lots of data, therefore it is expected to take some time to complete. Since the exact estimate depends on server performance,​ database management system configuration and version, and it cannot be predicted, it is recommended to first test the patch outside the production environment.+Numeric (float) data type now supports precision of approximately 15 digits and range from approximately -1.79E+308 to 1.79E+308 (with exception of [[:​manual/​installation/​known_issues#​floating_point_values|PostgreSQL 11 and earlier versions]]). This is by default for new installations. However, when upgrading existing installations,​ a manual database upgrade patch must be applied. 
 + 
 +<note important>​The patch will alter data columns of history and trends tables, which usually contain lots of data, therefore it is expected to take some time to complete. Since the exact estimate depends on server performance,​​ database management system configuration and version, and it cannot be predicted, it is recommended to first test the patch outside the production environment.</​note>​
  
 Please execute the appropriate patch (SQL file) for your database: Please execute the appropriate patch (SQL file) for your database:
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 Note that with TimescaleDB the [[:​manual/​appendix/​install/​timescaledb#​timescaledb_compression|compression support]] must only be turned on after applying this patch. Note that with TimescaleDB the [[:​manual/​appendix/​install/​timescaledb#​timescaledb_compression|compression support]] must only be turned on after applying this patch.
 +
 +<​note>​After upgrading database tables, please also set or update $DB['​DOUBLE_IEEE754'​] value to true in /​frontends/​php/​conf/​zabbix.conf.php.</​note>​
  
 ==== Informational ==== ==== Informational ====
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 It is now possible to manually clear the SNMP cache on Zabbix server and proxy. Due to adding a new runtime control [[:​manual/​concepts/​server#​running_server|option]],​ Net-SNMP version 5.3.0 or higher is now required for SNMP support. It is now possible to manually clear the SNMP cache on Zabbix server and proxy. Due to adding a new runtime control [[:​manual/​concepts/​server#​running_server|option]],​ Net-SNMP version 5.3.0 or higher is now required for SNMP support.
- + 
 +=== Redis plugin update === 
 +Configuration parameter ''​Plugins.Redis.Password''​ was removed and an opportunity to pass a password as a key parameter has now been added. See [[:​manual/​config/​items/​itemtypes/​zabbix_agent/​zabbix_agent2/​redis|Redis plugin metrics]] for details.  
 + 
 +=== Supported Elasticsearch versions changed === 
 +Elasticsearch version 7.X is now supported. Support of the older versions has been dropped. ​