Changes in version 0.6.4                        

Bugfixes

  - Fix needs_preview() to handle NULL child option safely
  - Remove deprecated encoding parameter from knitr::knit() and
    rmarkdown::render() calls
  - Remove dead checkArgs detection code in needs_preview()
  - Fix inconsistent require_file() calls in regression_diagnostics()
    and knit_child_debug()

                        Changes in version 0.6.3                        

  - Remove LazyData field (no data directory in package)
  - Fix NEWS.md format for CRAN
  - Re-enable tests in R CMD check (were excluded via .Rbuildignore)
  - Update redirected URLs (travis-ci, codecov, github.io)

                        Changes in version 0.6.2                        

Bugfixes

  - fix tests with new knitr
  - don't show message about testing in print.knit_asis