Nové rysy jazyka Query 3.0

group by clause in FLWOR Expressions (3.9.7 Group By Clause).

tumbling window and sliding window in FLWOR Expressions (3.9.4 Window Clause).

count clause in FLWOR Expressions (3.9.6 Count Clause).

allowing empty in 3.9.2 For Clause, for functionality similar to outer joins in SQL.

try/catch expressions (3.14 Try/Catch Expressions).

Dynamic function invocation (3.2.2 Dynamic Function Invocation).

Inline functions (3.1.7 Inline Functions).

Private functions (4.18 Function Declaration).

Nondeterministic functions (4.18 Function Declaration)

Switch expressions (3.12 Switch Expression)

Computed namespace constructors (3.8.3.7 Computed Namespace Constructors).

Output declarations (2.2.4 Serialization).

Annotations (4.15 Annotations). Annotation assertions in function tests.