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+Note attributes is a set of key-value records owned by (assigned to) given note.
+
+They are used mainly for several things:
+
+* user can use them as tags/labels with optional value - e.g. when catalogizing books, you might add attributes like @year=1999, @genre=sci-fi, @author=Neal Stephenson
+* attributes can be used to configure some advanced features / settings - see below
+* plugins / scripts can use these to mark notes with some special values / metadata (e.g. note with imported reddit comment will have attribute with comment ID)
+
+Both of these can then be used in filters.
+
+### Show / edit attributes
+
+Click on note -> Note actions -> Attributes (or use keyboard shortcut ```ALT+A```).
+
+### Filter query syntax
+
+Following examples demonstrates syntax:
+
+* ```@abc``` - matches notes with attribute abc
+* ```@!abc``` - matches notes without abc attribute (maybe not the best syntax)
+* ```@abc=true``` - matches notes with attribute abc having value true
+* ```@abc!=true```
+* ```@"weird attribute"="weird value"``` - works also with whitespace inside names values
+* ```@abc and @def``` - matches notes with both abc and def
+* ```@abc @def``` - AND relation is implicit when specifying multiple attributes
+* ```@abc or @def``` - OR relation
+* ```@abc<=5``` - numerical comparison (also >, >=, <).
+* ```some search string @abc @def``` - combination of fulltext and attribute search - both of them need to match (OR not supported)
+* ```@abc @def some search string``` - same combination
+
+### Standard attributes
+
+Following attributes are used for advanced configuration:
+
+* ```disable_versioning``` - disables auto-versioning. Useful for e.g. large, but unimportant notes - e.g. large JS libraries used for scripting
+* ```calendar_root``` - marks note which should be used as root for "day notes". Only one should be marked as such.
+* ```run_on_startup``` - JavaScript notes with this attribute will be executed after Trilium startup
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