- Patch #502190 by jhodgdon, stella, sun: hook implementation headers out of compliance with standards.

#639738 by VM, batigolix, arianek, marvil07, jhodgdon, deviantintegral, and dmitrig01: Convert Path module to new help standard.

Roll-back of #595084; type-hinting parameters at stdClass makes it so you can't ever pass in another type of class.

- Patch by #565496 by dropcube, pwolanin: changed Allow dynamic attaching of other types of stuff to render() structures.

#497118 by chx, catch, pwolanin, JoshuaRogers, and Jacob Singh: Remove the function registry. While the hope was that this would result in improved performance for low-end hosts, it comes at the expense of critical development experience problems and less benefit than something like APC. Class registry remains intact to facilitate autoloading.

Of all the patches to accidentally commit without a message. :( Rolling back registry rip. Let's try that again.

- Patch #476290 by tylor, evlis2, bohjan, Psicomante et al: add path alias to taxonomy term edit page. Yay.

- Patch #504098 by eigenator, Xano, Keith.smith et al: better help text for path administration page.

#323112 by dmitrig01, kkaefer, quicksketch, frando and many many more: Now presenting... Vertical Tabs. Fantastic new UI improvement for node forms and hopefully more in the future.

- Patch #319356 by recidive: clean up hook_nodeapi_ fucntion signatures and documentation because of previous node API clean-ups.

- Patch #335385 by Dave Reid: fixed maxlength of path alias fields to be consistent with the database.

#313213 by maartenvg, Gábor Hojtsy: Add a 'title' attribute for permissions to allow for localization of permission names

- Patch #161301 by Eaton, Sun, moshe and webchick: make checking for node edit forms easier. DX improvement.

#108979 by ewhipple, catch, and sun: Order permissions consistently, keep node type related permissions together.

  et al.  Can you say 'registry'?  Drupal now maintains an internal registry of
  all functions or classes in the system, allowing it to lazy-load code files as
  needed (reducing the amount of code that must be parsed on each request). The
  list of included files is cached per menu callback for subsequent loading by
  the menu router. This way, a given page request will have all the code it needs
  but little else, minimizing time spent parsing unneeded code.

- Patch #245115 by kkaefer, John Morahan, JohnAlbin et al: after a long discussion we've decided to make the concatenation operator consistent with the other operators.