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New stacked memory plot in Metrics Dashboard

Change effective on 17 July 2015

To help users better assess the overall memory health of their application the individual rss and swap memory plots in the Metrics Dashboard have been combined into a single stacked memory plot. The new plot displays maximum rss memory, maximum swap memory and average total memory (rss + swap) across all dynos. Further details are available in the Memory Usage documentation.

Heroku Postgres data size enforcement on Forks and Followers Java support defaults to Tomcat 8