A very effective tool to get a company to release an update when...

A very effective tool to get a company to release an update when material seems overdue is to email them direct making your point constructively that such news is overdue and ought to be provided now.

The more that do this the more effective the strategy becomes as generally companies won't ignore shareholders on mass.

"Contact us" details are on the Neon website. For the enthusiastic, Solimar could be targetted similarly via their website.