5.x cherry pick to 5.14 (#797)

Co-authored-by: Gem Lamont <106068376+gem-neo4j@users.noreply.github.com>
Co-authored-by: Jens Pryce-Åklundh <112686610+JPryce-Aklundh@users.noreply.github.com>

antora.yml

@@ -7,5 +7,5 @@ nav:
 asciidoc:
   attributes:
     neo4j-version: '5'
-    neo4j-version-minor: '5.13'
-    neo4j-version-exact: '5.13.0'
+    neo4j-version-minor: '5.14'
+    neo4j-version-exact: '5.14.0'

modules/ROOT/pages/clauses/delete.adoc

@@ -53,6 +53,25 @@ This query is only possible to run on nodes without any relationships connected
 Deleted 1 node
 ----
 
+[[delete-nodetach]]
+=== NODETACH keyword
+
+_This feature was introduced in Neo4j 5.14._
+
+It is also possible to delete the single node using the `NODETACH DELETE` clause.
+Using the `NODETACH` keyword explicitly defines that relationships will not be detached and deleted from a node.
+The `NODETACH` keyword is a mirror of the already existing keyword xref:clauses/delete.adoc#delete-a-node-with-all-its-relationships[DETACH].
+Including it is functionally the same as using simple `DELETE`.
+
+.Query
+[source, cypher]
+----
+MATCH (n:Person {name: 'Tom Hanks'})
+NODETACH DELETE n
+----
+
+This also deletes the `Person` node `Tom Hanks`.
+
 [[delete-relationships-only]]
 == Delete relationships only
 

modules/ROOT/pages/deprecations-additions-removals-compatibility.adoc

@@ -16,6 +16,59 @@ New features are added to the language continuously, and occasionally, some feat
 This section lists all of the features that have been removed, deprecated, added, or extended in different Cypher versions.
 Replacement syntax for deprecated and removed features are also indicated.
 
+[[cypher-deprecations-additions-removals-5.14]]
+== Neo4j 5.14
+
+=== Updated features
+
+[cols="2", options="header"]
+|===
+| Feature
+| Details
+a|
+label:functionality[]
+label:updated[]
+
+[source, cypher, role="noheader"]
+----
+IS :: INTEGER!
+----
+
+| Extended xref::values-and-types/property-structural-constructed.adoc#types-synonyms[type] syntax to allow an exclamation mark `!` as a synonym for `NOT NULL`.
+
+|===
+
+=== New features
+
+[cols="2", options="header"]
+|===
+| Feature
+| Details
+
+a|
+label:functionality[]
+label:new[]
+
+[source, cypher, role=noheader]
+----
+RETURN nullIf(v1, v2)
+----
+
+| Introduction of a xref::functions/scalar.adoc#functions-nullIf[nullIf()] function.
+This function returns null if the two given parameters are equivalent, otherwise returns the value of the first parameter.
+
+a|
+label:functionality[]
+label:new[]
+[source, cypher, role="noheader"]
+----
+MATCH (n) NODETACH DELETE n
+----
+a|
+Added a new keyword xref:clauses/delete.adoc#delete-nodetach[NODETACH], explicitly defining that relationships will not be detached and deleted.
+This is a mirror of the already existing keyword `DETACH`.
+|===
+
 [[cypher-deprecations-additions-removals-5.13]]
 == Neo4j 5.13
 

modules/ROOT/pages/functions/index.adoc

@@ -126,6 +126,10 @@ label:new[Introduced in 5.13]
 | `length(input :: PATH) :: INTEGER`
 | Returns the length of a `PATH`.
 
+1.1+| xref::functions/scalar.adoc#functions-nullIf[`nullIf()`]
+| `nullIf(v1 :: ANY, v2 :: ANY) :: ANY`
+| Returns null if the two given parameters are equivalent, otherwise returns the value of the first parameter.
+
 1.3+| xref::functions/scalar.adoc#functions-properties[`properties()`]
 | `properties(input :: MAP) :: MAP`
 | Returns a `MAP` containing all the properties of a `MAP`.

modules/ROOT/pages/functions/scalar.adoc

@@ -688,6 +688,87 @@ The length of the path `p` is returned.
 ======
 
 
+[[functions-nullIf]]
+== nullIf()
+
+The function `nullIf()` returns null if the two given parameters are equivalent, otherwise returns the value of the first parameter.
+
+*Syntax:*
+
+[source, syntax, role="noheader"]
+----
+nullIf(v1, v2)
+----
+
+*Returns:*
+
+|===
+
+| `ANY`
+
+|===
+
+*Arguments:*
+
+[options="header"]
+|===
+| Name | Description
+
+| `v1`
+| An expression that returns `ANY`.
+
+| `v2`
+| An expression that returns `ANY`.
+
+|===
+
+.+nullIf()+
+======
+
+.Query
+[source, cypher, indent=0]
+----
+RETURN nullIf(4, 4)
+----
+
+The null value is returned as the two parameters are equivalent.
+
+.Result
+[role="queryresult",options="header,footer",cols="1*<m"]
+|===
+
+| +nullIf(4, 4)+
+| +null+
+1+d|Rows: 1
+
+|===
+
+======
+
+.+nullIf()+
+======
+
+.Query
+[source, cypher, indent=0]
+----
+RETURN nullIf("abc", "def")
+----
+
+The first parameter, "abc", is returned, as the two parameters are not equivalent.
+
+.Result
+[role="queryresult",options="header,footer",cols="1*<m"]
+|===
+
+| +nullIf("abc", "def")+
+| +"abc"+
+1+d|Rows: 1
+
+|===
+
+======
+
+
 [[functions-properties]]
 == properties()
 

modules/ROOT/pages/values-and-types/property-structural-constructed.adoc

@@ -104,6 +104,7 @@ However, not all types can be used in all places.
 |===
 
 All Cypher types contain the `null` value. To make them not nullable, `NOT NULL` can be appended to the end of the type (e.g. `BOOLEAN NOT NULL`, `LIST<FLOAT NOT NULL>`).
+A shorthand syntax equivalent, introduced in Neo4j 5.14, for `NOT NULL` is to use an exclamation mark `!` (e.g. `INTEGER!`, `LIST<STRING!>`).
 Note that closed dynamic types (`INNER_TYPE_1 | INNER_TYPE_2...`) cannot be appended with `NOT NULL`: all inner types must be nullable, or all appended with `NOT NULL`.
 
 [[type-normalization]]