v2.35.0

• even under \mplibtextextlabel{true}, the original infont operator will
  be used when the character slot of the text argument is less than 32, or is
  equal to 35, 36, 37, 38, 92, 94, 95, 123, 125, 126 or 127.

• \mplibforcehmode will have effects on \usemplibgroup as well as ordinary
  metapost figures.

• support tagged PDF when tagpdf package is activated. The related code is
  currently in experimental stage. See the documentation for details.

v2.34.5

• provide withgroupbbox macro for transparency group to enable users to control the bounding box

• write down the width/height/depth values of mplibgroup to the log file

v2.34.4

• withpattern operator accepts a textual picture as well as a path for its operand. Thus users can give pattern effect to the result of btex command or infont operator.

• fix regarding line width in mplibgraphictext

v2.34.3

• in DVI mode, use LaTeX's shipout hooks to generate new XObjects or to put resources to pageresources.
  (in plain, load atbegshi.sty)
• fix shading to allow the even-odd rule

v2.34.2

• With the newly introduced macros, \mplibgroup ... \endmplibgroup, users
  can define a transparency group or a normal form XObject from TeX side.
  The LaTeX environment mplibgroup is identical to this pair of macros.
  See the document for details.

• document: be more precise about the color effect of a transparency group

• remove trailing zeros from numeric objects to get smaller PDF

v2.34.1

• transparency group is available with plain format as well
• transparency group once used is reusable in the TeX code or in other MetaPost code chunks.

v2.34.0

• support transparency group with metafun format
• fix regarding default value in circular fading mode
• fix regarging the scope of graphics state

v2.33.1

• refactor the manual, including some minor items undocumented so far
• improve fading routine to get possibly smaller pdf file

v2.33.0

• provide a new metapost operator withfademethod and related macros,
  which make the color of an object gradiently transparent.
• fix spot-color shading routine to support user-defined colorspace

v2.32.4

• make the variable patterns local
• math.randomseed on plain TeX
• remove redundant code fullcircle scaled 0