add Asciidoctor 2.0.16 release to the What's New page (PR #4119)

CHANGELOG.adoc

@@ -22,7 +22,7 @@ Bug Fixes::
   * Include all lines outside of specified tagged region when tag filter on include directive is a single negated tag (#4048)
   * Only interpret negated wildcard in tag filter on include directive as implicit globstar if it precedes other tags (#4086)
   * Change ifeval directive to resolve to false if comparison operation cannot be performed (#4046)
-  * Don't crash if :to_file option is passed to load or load_file and value is not a string (#4055)
+  * Don't crash if `:to_file` option is passed to `load` or `load_file` and value is not a string (#4055)
   * Use automatic link text if ID in shorthand xref is followed by dangling comma (e.g., `+<<idname,>>+`)
   * Update default stylesheet to indent blocks attached to list item in checklist (#2550)
   * Update default stylesheet to reenable styling of implicit lead role on first paragraph of preamble inside AsciiDoc table cell
@@ -31,7 +31,7 @@ Bug Fixes::
   * Fix missing automatic reftext for internal xrefs in manpage output (#4110)
   * Replace numeric character reference for plus in manpage output (#4059)
   * Replace numeric character reference for degree sign in manpage output (#4059)
-  * Convert apostrophe to the portable `\*(Aq` variable instead of the groff-specific escape `\(aq` (#4060) (*@felipec*)
+  * Convert apostrophe to the portable `+\*(Aq+` variable instead of the groff-specific escape `\(aq` (#4060) (*@felipec*)
   * Document the `-e, --embedded` option flag in the man page, which replaces the outdated `-e, --eruby` option flag
 
 Improvements::
@@ -42,7 +42,7 @@ Improvements::
   * Remove redundant styles from the default stylesheet
   * Update font styles for summary element in default stylesheet to match font styles of paragraph (#4114)
   * Update default stylesheet to indent content of details element (#4116)
-  * Update default stylesheet to use custom marker to make appearance consistent (#4116)
+  * Update default stylesheet to use custom marker for summary element to make appearance consistent (#4116)
   * Add Vietnamese translation of built-in attributes (PR #4066) (*@nguyenhoa93*)
   * Add Thai translation of built-in attributes (PR #4113) (*@ammaneena*)
 

docs/modules/ROOT/pages/whats-new.adoc

@@ -3,13 +3,51 @@
 :doctype: book
 :page-toclevels: 0
 :url-releases-asciidoctor: {url-org}/asciidoctor/releases
-:url-milestone: {url-org}/asciidoctor/milestone/33?closed=1:
+:url-milestone: {url-org}/asciidoctor/milestone/33?closed=1
 
 This page lists the changes made in each of the patch releases in the Asciidoctor {page-component-version} release line.
 The releases are ordered from newest to oldest.
 
 _**Cumulative issues resolved:** {url-milestone}[2.0.x^]_
 
+= Asciidoctor 2.0.16
+
+_**Release date:** 2021.08.03_
+
+== Bug Fixes
+
+* Include all lines outside of specified tagged region when tag filter on include directive is a single negated tag (#4048)
+* Only interpret negated wildcard in tag filter on include directive as implicit globstar if it precedes other tags (#4086)
+* Change ifeval directive to resolve to false if comparison operation cannot be performed (#4046)
+* Don't crash if `:to_file` option is passed to `load` or `load_file` and value is not a string (#4055)
+* Use automatic link text if ID in shorthand xref is followed by dangling comma (e.g., `+<<idname,>>+`)
+* Update default stylesheet to indent blocks attached to list item in checklist (#2550)
+* Update default stylesheet to re-enable styling of implicit lead role on first paragraph of preamble inside AsciiDoc table cell
+* Update default stylesheet to fix conflict between text decoration and bottom border on abbr[title] element
+* Change invalid font family "sans" in default stylesheet to "sans-serif"
+* Fix missing automatic reftext for internal xrefs in manpage output (#4110)
+* Replace numeric character reference for plus in manpage output (#4059)
+* Replace numeric character reference for degree sign in manpage output (#4059)
+* Convert apostrophe to the portable `+\*(Aq+` variable instead of the groff-specific escape `\(aq` (#4060) (*@felipec*)
+* Document the `-e, --embedded` option flag in the man page, which replaces the outdated `-e, --eruby` option flag
+
+== Improvements
+
+* Use queue to iterate over lines in reader instead of stack (#4106)
+* Uppercase automatic reftext for level-2 section titles in manpage output if reftext matches section title (#4110)
+* Show safe modes in strictness order in CLI help (#4065)
+* Remove redundant styles from the default stylesheet
+* Update font styles for summary element in default stylesheet to match font styles of paragraph (#4114)
+* Update default stylesheet to indent content of details element (#4116)
+* Update default stylesheet to use custom marker for summary element to make appearance consistent (#4116)
+* Add Vietnamese translation of built-in attributes (PR #4066) (*@nguyenhoa93*)
+* Add Thai translation of built-in attributes (PR #4113) (*@ammaneena*)
+
+== Build / Infrastructure
+
+* Import source of default stylesheet into this repository; use PostCSS with cssnano to minify (#4062)
+* Use autoprefixer to manage browser prefixes in default stylesheet (#4118)
+
 = Asciidoctor 2.0.15
 
 _**Release date:** 2021.04.27_