diff --git a/BlogLiterately.cabal b/BlogLiterately.cabal
--- a/BlogLiterately.cabal
+++ b/BlogLiterately.cabal
@@ -1,5 +1,5 @@
 Name:           BlogLiterately
-Version:        0.8.6
+Version:        0.8.6.1
 Synopsis:       A tool for posting Haskelly articles to blogs
 Description:    Write blog posts in Markdown format, then use BlogLiterately
                 to do syntax highlighting, format ghci sessions, and upload
diff --git a/CHANGES.md b/CHANGES.md
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,11 @@
+0.8.6.1 (31 January 2018)
+-------------------------
+
+  - bug fix: a lot of options got turned off by default in pandoc 2.x!
+    Restore default pandoc Markdown parsing options.  This bug means
+    that 0.8.5 and 0.8.6 did not parse various things correctly such
+    as LaTeX math, citations, and YAML header blocks.
+
 0.8.6 (31 January 2018)
 -----------------------
 
diff --git a/doc/BlogLiteratelyDoc.lhs b/doc/BlogLiteratelyDoc.lhs
--- a/doc/BlogLiteratelyDoc.lhs
+++ b/doc/BlogLiteratelyDoc.lhs
@@ -235,6 +235,10 @@
 Note that an extra `$latex...` won't be added to the beginning of
 LaTeX expressions which already appear to be in WordPress format.
 
+Finally, to simply pass LaTeX math through unchanged (for example, if
+your blog hosting software will do LaTeX processing), you can use the
+`--rawlatex` option.
+
 Special links
 -------------
 
@@ -336,7 +340,7 @@
     length txt
 
 (And yes, of course, the above output really *was* generated by
-BlogLiterately!)  Additionally, lines indented by one or more spaces
+`BlogLiterately`!)  Additionally, lines indented by one or more spaces
 are interpreted as *expected outputs* instead of inputs.  Consecutive
 indented lines are interpreted as one multi-line expected output, with
 a number of spaces removed from the beginning of each line equal to
@@ -452,13 +456,18 @@
          --kate               highlight non-Haskell code with highlighting-kate
                               (default)
          --no-kate            don't highlight non-Haskell code
+         --lit-haskell        parse as literate Haskell (default)
+         --no-lit-haskell     do not parse as literate Haskell
+         --no-toc             don't generate a table of contents (default)
+         --toc                generate a table of contents
+      -r --rawlatex           pass inline/display LaTeX through unchanged
       -w --wplatex            reformat inline LaTeX the way WordPress expects
       -m --math=ITEM          how to layout math, where
                               --math=<pandoc-option>[=URL]
       -g --ghci               run [ghci] blocks through ghci and include output
       -I --upload-images      upload local images
       -C --category=ITEM      post category (can specify more than one)
-      -T --tag=ITEM           tag (can specify more than one)
+      -T --tag=ITEM ---tags   tag (can specify more than one)
          --blogid=ID          Blog specific identifier
       -P --profile=STRING     profile to use
       -b --blog=URL           blog XML-RPC url (if omitted, HTML goes to stdout)
@@ -475,6 +484,7 @@
       -x --xtra=ITEM          extension arguments, for use with custom extensions
       -? --help               Display help message
       -V --version            Print version information
+         --numeric-version    Print just the version number
 
 Profiles
 --------
diff --git a/src/Text/BlogLiterately/Transform.hs b/src/Text/BlogLiterately/Transform.hs
--- a/src/Text/BlogLiterately/Transform.hs
+++ b/src/Text/BlogLiterately/Transform.hs
@@ -554,28 +554,34 @@
             ".txt"  -> readRST opts
             _       -> readMarkdown opts
 
-    parseOpts = let e0 = enableExtension Ext_smart $
-                         case bl^.litHaskell of
-                           Just False -> readerExtensions def
-                           _          -> enableExtension Ext_literate_haskell
-                                              (readerExtensions def)
-                    e1 = case bl^.rawlatex of
-                           Just True -> enableExtension Ext_tex_math_dollars $
-                                        enableExtension Ext_tex_math_single_backslash $
-                                        readerExtensions def
-                           _         -> readerExtensions def
+    parseOpts = def
+      { readerExtensions = pandocExtensions &
+          foldr (.) id
+            [ enableExtension Ext_tex_math_single_backslash
+            , case bl^.litHaskell of
+                Just False -> id
+                _          -> enableExtension Ext_literate_haskell
+            ]
 
-                 in def { readerExtensions = e0 <> e1 }
+            -- Relevant extensions enabled by default in pandocExtensions:
+            -- (see https://hackage.haskell.org/package/pandoc-2.1.1/docs/src/Text-Pandoc-Extensions.html#pandocExtensions):
 
+            -- Ext_smart
+            -- Ext_yaml_metadata_block
+            -- Ext_tex_math_dollars
+            -- Ext_pandoc_title_block
+            -- Ext_citations
+      }
     writeOpts bl = def
-                   { writerReferenceLinks = True
-                   , writerTableOfContents = toc' bl
-                   , writerHTMLMathMethod =
-                     case math' bl of
-                       ""  -> PlainMath
-                       opt -> mathOption opt
-                   , writerTemplate       = Just blHtmlTemplate
-                   }
+      { writerReferenceLinks = True
+      , writerTableOfContents = toc' bl
+      , writerHTMLMathMethod =
+          case math' bl of
+            ""  -> PlainMath
+            opt -> mathOption opt
+      , writerTemplate       = Just blHtmlTemplate
+      }
+
     mathOption opt
       | opt `isPrefixOf` "latexmathml" ||
         opt `isPrefixOf` "asciimathml" = LaTeXMathML (mathUrlMaybe opt)