Profile manager of text processing pipelines: Pandoc filters, any text CLI filters. Atom+Markdown+Pandoc+Jupyter workflow, export to ipynb. Uses Stitch fork: https://github.com/kiwi0fruit/knitty
Previously, if a document contained two YAML metadata blocks that set the same field, the conflict would be resolved in favor of the first. Now it is resolved in favor of the second (due to a change in pandoc-types). This makes the behavior more uniform with other things in pandoc (such as reference links and --metadata-file).
Investigate how can it affect pandoctools.