v2.5.1

This release brings the latest version of Asciidoctor, 2.0.15 and Asciidoctor Epub3, 1.5.1.

Improvement

• Upgrade to asciidoctor 2.0.15 (#1026)
• Upgrade to asciidoctor-epub 1.5.1 (#1030)

Bug Fixes

• Fix performance regression in v2.5.0 with asciidoctorj-pdf and concurrent-ruby (@kedar-joshi) (#1032)

Build Improvement

• Upgrade to sdkman vendor plugin 2.0.0
• Remove builds on appveyor (#1027)

Build / Infrastructure

• Upgrade test dependencies on Arquillian and Spock (#1031)

Release Meta

Released on: 2021-05-04
Released by: @robertpanzer