Version 6.7 (June 30, 2011):

  Main Features:
  [ADD] Native support for the EXPath Packaging system:
        http://docs.basex.org/wiki/Packaging
  [ADD] Client/server event notification:
        http://docs.basex.org/wiki/Events
  [ADD] Persistent document index added to speed up
        access to large collections
  
  XQuery:
  [ADD] New database and full-text functions:
        http://docs.basex.org/wiki/Database_Functions
        http://docs.basex.org/wiki/Full-Text_Functions
  [ADD] Event function added to fire events
  [MOD] Index optimizations, better cost estimations
  
  Commands:
  [ADD] Glob syntax introduced to database commands:
        http://docs.basex.org/wiki/Commands
  [ADD] New commands added: REPLACE, RENAME,
        REPO DELETE/INSTALL/LIST, CREATE/DROP EVENT
  [MOD] BACKUP optimized, renamed to CREATE BACKUP

Version 6.6.2 (May 13, 2011) Linuxtag release:

  API:
  [ADD] JAX-RX API now supports basic user authentication:
        http://docs.basex.org/wiki/JAX-RX_API
  [ADD] The COPY creates identical database copies:
        http://docs.basex.org/wiki/Commands#COPY
  [ADD] The OPTIMIZE ALL command minimizes all database structures:
        http://docs.basex.org/wiki/Commands#OPTIMIZE

  XQuery:
  [ADD] map expressions and functions added:
        http://docs.basex.org/wiki/Map_Functions
  [MOD] File module aligned with latest EXPath specification:
        http://docs.basex.org/wiki/File_Functions
  [MOD] Speedup of full-text queries with keyword lists.
        Example: $x contains text { 'a', 'b', 'c', ...}
  [MOD] XQuery Update optimizations for replacing nodes;
        tree-aware updates.
  [MOD] XQuery optimizations to avoid materialization of sequences.

  GUI:
  [ADD] Multiple editor tabs added
  [ADD] Database management: copy databases

  Core:
  [ADD] Internal XML parser: HTML entities added
  [FIX] Glob syntax: support for multiple file suffixes


Version 6.6.1 (Mar 30, 2011) XML Prague release:

  XQuery:
  [ADD] index rewritings added for .../text()[. = ..] syntax
  [ADD] optimizations of mixed axis path expressions, e.g.: //x/name()
  [MOD] index rewritings on collections fixed and generalized
  [MOD] faster evaluation of filters with pos. predicates, e.g.: $x[5]
  [FIX] fixed relocation of let clauses in GFLWOR expressions
  [FIX] trace function returned wrong original results
  [FIX] variables in catch clauses were discarded
  [FIX] HOF optimizations and fixes
   
  GUI:
  [FIX] language option (for Japanese, German, etc. interface) fixed
