Issue #1898034 by Cottser, jenlampton, joelpittet, Shawn DeArmond, idflood, Hydra, artofeclipse, rich.yumul, chrisjlee, gnuget, c4rl, thund3rbox: block.module - Convert PHPTemplate templates to Twig.

Issue #1898432 by WebDevDude, steveoliver, vlad.dancer, jenlampton, pixelmord, Fabianx, iztok, EVIIILJ, jwilson3, c4rl, Cottser: Convert node module to Twig.

Issue #1898054 by pixelmord, jenlampton, steveoliver, EVIIILJ, c4rl, vlad.dancer, Fabianx, joelpittet, jwilson3, thedavidmeister, shanethehat, Cottser: Convert comment module to Twig.

Issue #1898454 by c4rl, gnuget, Hydra, mr.baileys, Sean Charles, joelpittet: system.module - Convert PHPTemplate templates to Twig.

Issue #1898418 by Cottser, shanethehat, c4rl, joelpittet, disasm, Floydm, jenlampton: forum.module - Convert PHPTemplate templates to Twig.

Issue #1898424 by joelpittet, duellj, Cottser, mr.baileys: layout.module - Convert PHPTemplate templates to Twig.

Issue #1896060 by shanethehat, Cottser, joelpittet, disasm, ParisLiakos, Floydm, stevector, jenlampton, c4rl, mr.baileys, thedavidmeister, jwilson3: aggregator.module - Convert PHPTemplate templates to Twig.

Issue #1898468 by Cottser, joelpittet, rteijeiro, c4rl, steveoliver, scor, jenlampton, idflood, shanethehat, thedavidmeister: [READY] user.module - Convert PHPTemplate templates to Twig.

Issue #1898050 by duellj, Cottser, meeli, dsdart, Fabianx | c4rl: book.module - Convert PHPTemplate templates to Twig.

Issue #1938848 by Jaesin, Cottser, jenlampton, hefox, Shawn DeArmond, frob, boze, joelpittet, mrf, dcrocks: seven.theme - Convert PHPTemplate templates to Twig.

Issue #1898460 by pixelmord, bstoppel, steveoliver, jenlampton, johnnygamba, jastraat, Cottser, lbainbridge, myke, thedavidmeister, c4rl, joelpittet, ezeedub: Convert taxonomy module to Twig.

Issue #1898436 by chrisjlee, joelpittet, gnuget, Cottser: overlay.module - Convert PHPTemplate templates to Twig.

Issue #1987426 by shanethehat, Cottser, intergalactic overlords, mr.baileys: Convert maintenance-page.tpl.php to Twig.

Issue #1961870 by Cottser, foopang, kgoel, shanethehat, tlattimore, c4rl, joelpittet, thedavidmeister: Convert page.tpl.php to Twig.

Issue #1961872 by Cottser, widukind, foopang, shanethehat, nikkubhai, c4rl, thedavidmeister: Convert html.tpl.php to Twig.

Issue #1898458 by widukind, Cottser, c4rl: [READY] theme_test().module - Convert PHPTemplate templates to Twig.

Issue #1993312 by damiankloip, tim.plunkett: Change pre_render(), post_render(), and after_build() callbacks to accept callables.

Issue #1957888 by ParisLiakos, Berdir: Fixed Exception when a field is empty on programmatic creation.

Issue #1981912 by kostajh, theMusician,  Justin M. Woodum: Make reference to INSTALL.txt in system_requirements link to the file when displayed.

Issue #1893442 by andypost, tim.plunkett, dawehner: Move BlockStorageController::loadByProperties() into ConfigStorageController.