This is a big and important patch for Drupal's security.  We are switching
  to much stronger password hashes that are also compatible with the Portable
  PHP password hashing framework.

  The new password hashes defeat a number of attacks, including:

  - The ability to try candidate passwords against multiple hashes at once.
  - The ability to use pre-hashed lists of candidate passwords.
  - The ability to determine whether two users have the same (or different)
    password without actually having to guess one of the passwords.

  Also implemented a pluggable password hashing API (similar to how an alternate
  cache mechanism can be used) to allow developers to readily substitute an
  alternative hashing and authentication scheme.

  Thanks all!

- Patch #30984 by webchick, keith.smith, kkaefer, Crell et al: provide descriptions for permissions on the permission administration page.

- Patch #222183 by Gabor and Keith: make the input formats reorderable as a first step towards better input format handling, and ultimately, good WYSIWYIG support.

#197722 by catch, hwsong3i: remove 4.7 to 5.x updates; we only support direct updates from 5.x to 6.x

#202425 by keith.smith: standardize reference to block placement page as 'blocks administration page' to avoid any confusion

- Patch #163246 by keith smith, freso, O Govinda, catch, webchick et al: fixed minor spelling issues and fixed spacing issues.

#193510 by webernet: remove updates from unsupported Drupal versions, as our policy dictates (and because some API changes make them faulty without further modifications)

- Patch #191073 by Keith: another good string cleanup by Keith.  (Also removed some trailing whitespace.)

#178768 follow up patch by myself: now that we know Drupal module is moved to site_network, we can document is in the changelog

- Patch #144634 by chx: fixed critical bug that prevented language negotiation to work after/when drupal_goto() is called.

Marking code as beta 1 in preparation of the first beta release of Drupal 6, also add back E_NOTICE removal for the release.

#175197 by KentByte and webchick: updat CHANGELOG with some important changes we missed to mention here (and wrap lines properly)