See https://github.com/Homebrew/brew/pull/1752#discussion_r94257147

Fixes #1524.

Deprecate `brew cask update`.

formula_installer: optional deps version check.

cc: always filter flags on deps.

Require `HOMEBREW_CHECK_RECURSIVE_VERSION_DEPENDENCIES` to be specified
(which will be by `brew test-bot`) to avoid this being inflicted on
end-users unnecessarily.

This has been tested by `brew test-bot` since March and there’s been no
issues so let’s turn it on by default.

tap_migrations: support renaming to/from casks.

Add Kaby Lake to Linux hardware list

formula: don't expand unused optional dependencies

keg: installed dependencies of unknown formulae

Allow `tap_migrations` entries to have a `user/repo/formula` or
`user/repo/cask` format for migration of formulae to/from casks.

formula_installer: prevent version mismatched deps

audit: don't allow openssl & libressl dependency.

Don't drop .rb suffix for formula names

Correct location of taps (doc)

Formulae should not depend on both OpenSSL and LibreSSL (even
optionally). This is to avoid descending into madness where every
formulae that could use LibreSSL has to have option and switching logic.

Homebrew has standardised on OpenSSL and will do so everywhere that
LibreSSL is not a hard requirement.

brew deps: support --full-name in --installed, --all, and --tree modes

Because of an accidental use of `=` instead of `==`, the source formula
check would be skipped when determining if a keg depended on another one
(so only the versions would be compared).

Fixed that comparison, and updated the corresponding test.

Glad I caught that!

Previously, trying to resolve the dependencies of a keg would raise an
exception if the formulae for any of the dependencies could not be found
(e.g. if it had been moved to another tap).

This commit updates the dependency finding logic to catch these
exceptions, and fall back to comparing names and taps of formulae, which
should give the correct behaviour.

Fixes #1586.

see #1526

Fixes #1718

diagnostic: check for bad tap files.

This properly addresses Homebrew/homebrew-core#7826.

create: remove :x11 dep from new formula template

bump-formula-pr: fix removal of old mirrors

brew create: add meson support

Updated homepage 404 check to use explicit parameters and return the …

This reverts commit 862c3ba4.