documentation updates

CHANGELOG

@@ -1,8 +1,10 @@
 devel
 -----
 
-* the rocksdb storage format was changed, users of the previous alpha versions
-  must delete the database directory and reimport their data
+* added `REGEX_REPLACE` AQL function
+
+* the RocksDB storage format was changed, users of the previous alpha versions
+  must delete the database directory and re-import their data
 
 * added server startup option `--query.fail-on-warning`
 

Documentation/Books/Manual/ReleaseNotes/NewFeatures32.md

@@ -238,7 +238,7 @@ AQL
   statements in AQL, without the need to use the somewhat limited special-purpose geo AQL 
   functions `NEAR` or `WITHIN`.
   
-  Compared to using thespecial purpose AQL functions this approach has the
+  Compared to using the special purpose AQL functions this approach has the
   advantage that it is more composable, and will also honor any `LIMIT` values
   used in the AQL query.
 
@@ -257,11 +257,23 @@ AQL
         FILTER DISTANCE(doc.latitude, doc.longitude, 0, 0) < 2000 
         RETURN doc
 
-  Note that this will work in the MMFiles engine only.
-
 
 ### Miscellaneous improvements
 
+* added `REGEX_REPLACE` AQL function
+
+  `REGEX_REPLACE(text, search, replacement, caseInsensitive) → string`
+
+  Replace the pattern *search* with the string *replacement* in the string
+  *text*, using regular expression matching.
+
+  - **text** (string): the string to search in
+  - **search** (string): a regular expression search pattern
+  - **replacement** (string): the string to replace the *search* pattern with
+  - returns **string** (string): the string *text* with the *search* regex
+    pattern replaced with the *replacement* string wherever the pattern exists
+    in *text*
+
 * added new startup option `--query.fail-on-warning` to make AQL queries
   abort instead of continuing with warnings.