From the website:
In the last few weeks since we announced Neo4j 1.4 GA, we’ve been busy working on improvements to the codebase for more predictability, better backup performance, and improved scripts for the server. Ordinarily we’d roll these improvements into a milestone, but this time around we think they’re important enough to warrant a stable release, and so today we’re announcing the release of Neo4j 1.4.1 GA.