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			[ZBXNEXT-1762] added years, months and half of months periods displaying on graphs X axis 
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			[ZBXNEXT-1679] implemented value map import/export 
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			[ZBXNEXT-1679] added checkbox column in value map list view and bulk "Delete" button 
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			[ZBXNEXT-1679] added "Used in items" column in value map list view and green text "Yes" if value map is used in items or item prototypes 
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			[ZBXNEXT-1679] added value map sorting by name 
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			[ZBXNEXT-1679] added limit for the amount of records and paging in value maps 
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			[ZBXNEXT-1679] replaced built-in confirmation dialog with modal window dialog for image import when selecting "Update existing" 
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			[ZBXNEXT-2683] added user macro context 
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			[ZBX-2616] updated bundled DejaVu font from 2.34 to 2.35 
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			[ZBX-9935] added check for item delay, to be between 0 and 86400 seconds 
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			[ZBX-1357] updated Brazilian Portuguese, Czech, Finnish, Japanese, Polish, Russian and Slovak translations; thanks to Zabbix translators 
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			[ZBXNEXT-2678] implemented trigger description and URL popups in the dashboard's "Last 20 issues" and screen element's "Host group issues" and "Host issues" 
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			[ZBX-2517] minimum period for time navigator set to 5 minutes; thanks to Zabbix community 
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			[ZBXNEXT-1424] implemented value mapping API, added clone button in value map edit form and slightly improved performance of value map caching in frontend 
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			[ZBXNEXT-2960] reduced the default MaxLinesPerSecond value to 20