## v4.5.0 - November 21, 2018
eXist-db v4.5.0 has been released.
This is a minor release, which contains a few new features and several bug fixes.
We recommend that all users of eXist-db 4.x.x should upgrade to eXist-db 4.5.0.
### Features
- Added a facility for configuring the XML parser from
conf.xml. This allows the user to specify various options. It is suggested to use the commented options inconf.xmlto secure the parser from XML external entity attacks. - #2147 - Updated to AspectJ 1.9.2 for improved Java 11 support - #2236
- Added a checksum to the Journal for each entry to detect corruption - #2255
- Added a checksum to the Journal for the content of binary documents - #2260
- Improved the provenance of the XML:DB API dependency #2263
- Improved the provenance of the EXPath Pkg Repo fork dependency - #2284
### Bug fixes
- Fixed a startup failure affecting macOS under Java 11 - #2187
- Fixed an issue affecting mixed types in a subsequence - #2198
- Fixed preemptive authentication in the EXPath HTTP Client - #2208
- Fixed a concurrency issue in
ContextUpdateListener#2211 - Fixed map constructor to prevent duplicate keys - #2214
- Fixed thread naming - #2216
- Fixed an NPE in the range index involving the
order byclause - #2221 - Fixed several journaling and recovery issues for XML and binary documents - #2241
- Fixed an issue with lock lifetime when changing permissions - #2251
- Fixed a regression with loading the XML:DB API jar via
bin/startup- #2268 - Fixed a verbose logging regression in
ExistSAXParserFactory- #2273 - Fixed a regression in the ExportGUI - #2275
- Fixed an issue with RESTXQ not releasing binary file handles - #2289
- Removed the 2GB log file limit for the Journal #2292
- Fixed a signing issue affecting the Bouncy Castle library - #2298
### Backwards Compatibility
- eXist-db v4.5.0 is not binary compatible with previous versions of eXist-db because of improvements to the on-disk journal format. Before upgrading to this version of eXist-db, you MUST perform a full backup and restore. Users who are upgrading should always consult the Upgrading Guide in the documentation.
- NOTE: The version of Dashboard that was installed with eXist-db 3.6.1 (or earlier) is incompatible with eXist-db 4.0.0 and newer. If you plan to migrate your entire database to eXist-db 4.4.0, you MUST take one of the following steps to allow Dashboard to work after the upgrade:
- If you have not yet installed eXist-db 4.5.0, open
Dashboard > Package Manager, and upgrade Dashboard to0.4.10, or run this script in eXide or the Java Admin Client:repo:install-and-deploy("http://exist-db.org/apps dashboard", "http://demo.exist-db.org/exist/apps/public-repo/modules/find.xql"). Then you may safely install eXist-db 4.5.0 and use Dashboard. - If you install eXist-db 4.5.0 before upgrading Dashboard, run this script in eXide or the Java Admin Client:
repo:install-and-deploy("http://exist-db.org/apps/dashboard", "http://demo.exist-db.org/exist/apps/public-repo/modules/find.xql"). Then you may use Dashboard.
- If you have not yet installed eXist-db 4.5.0, open