Prepare for v1.8 release

Author: José Valim

CHANGELOG.md

@@ -23,12 +23,15 @@
   * [Kernel] Add `:delegate_to` `@doc` metadata tag when using `defdelegate`
   * [Kernel] Improve compile-time building of ranges via the `..` operator
   * [Kernel] Compile charlist interpolation more efficiently
+  * [Kernel.SpecialForms] Add `:reduce` option to `for` comprehensions
   * [List] Add `List.myers_difference/3` and `List.improper?/1`
   * [Macro] Add `Macro.struct!/2` for proper struct resolution during compile time
   * [Map] Optimize and merge nested maps `put` and `merge` operations
   * [Range] Add `Range.disjoint?/2`
+  * [Record] Reduce memory allocation when updating multiple fields in a record
   * [Registry] Allow associating a value on `:via` tuple
   * [String] Add `String.bag_distance/2`
+  * [Task] Add `$callers` tracking to `Task` - this makes it easier to find which process spawned a task and use it for tracking ownership and monitoring
 
 #### ExUnit
 
@@ -62,22 +65,31 @@
   * [Kernel] Expand operands in `size*unit` bitstring modifier instead of expecting `size` and `unit` to be literal integers
   * [Kernel] Do not deadlock on circular struct dependencies in typespecs
   * [Kernel] Raise proper error message when passing flags to the Erlang compiler that Elixir cannot handle
+  * [Kernel] Do not leak variables in `cond` clauses with a single matching at compile-time clause
   * [NaiveDateTime] Do not accept leap seconds in builder and parsing functions
   * [String] Fix ZWJ handling in Unicode grapheme clusters
 
+#### IEx
+
+  * [IEx.Helpers] Use typespec info (instead of docs chunk) and properly format callbacks in `b/1`
+
 #### Logger
 
   * [Logger] Allow Logger backends to be dynamically removed when an application is shutting down
 
 #### Mix
 
+  * [mix compile] Ensure changes in deps propagate to all umbrella children - this fix a long standing issue where updating a dependency would not recompile all projecys accordingly, requiring a complete removal of `_build`
+  * [mix compile] Avoid time drift when checking and updating compiler manifest files
   * [mix compile.app] Respect the `:only` option between umbrella siblings
   * [mix compile.protocols] Reconsolidate protocols if local dependencies are stale
   * [mix deps] Properly mark dependencies with different `:system_env` as diverged
   * [mix new] Use `--module` value when setting up filenames
 
 ### 3. Soft-deprecations (no warnings emitted)
 
+None.
+
 ### 4. Hard-deprecations
 
 #### Elixir

Makefile

@@ -1,7 +1,7 @@
 PREFIX ?= /usr/local
 SHARE_PREFIX ?= $(PREFIX)/share
 MAN_PREFIX ?= $(SHARE_PREFIX)/man
-CANONICAL := master/ # master/ or vMAJOR.MINOR/
+CANONICAL := v1.8/ # master/ or vMAJOR.MINOR/
 ELIXIRC := bin/elixirc --verbose --ignore-module-conflict --warnings-as-errors
 ERLC := erlc -I lib/elixir/include +warnings_as_errors
 ERL := erl -I lib/elixir/include -noshell -pa lib/elixir/ebin

lib/elixir/pages/Compatibility and Deprecations.md

@@ -8,11 +8,11 @@ Elixir applies bug fixes only to the latest minor branch. Security patches are a
 
 Elixir version | Support
 :------------- | :-----------------------------
-1.7            | Bug fixes and security patches
+1.8            | Bug fixes and security patches
+1.7            | Security patches only
 1.6            | Security patches only
 1.5            | Security patches only
 1.4            | Security patches only
-1.3            | Security patches only
 
 New releases are announced in the read-only [announcements mailing list](https://groups.google.com/group/elixir-lang-ann). All security releases [will be tagged with `[security]`](https://groups.google.com/forum/#!searchin/elixir-lang-ann/%5Bsecurity%5D%7Csort:date).
 
@@ -148,4 +148,4 @@ Non-map as second argument in `URI.decode_query/2` | [v1.3]      | Use a map (v1
 [v1.5]: https://github.com/elixir-lang/elixir/blob/v1.5/CHANGELOG.md#4-deprecations
 [v1.6]: https://github.com/elixir-lang/elixir/blob/v1.6/CHANGELOG.md#4-deprecations
 [v1.7]: https://github.com/elixir-lang/elixir/blob/v1.7/CHANGELOG.md#4-hard-deprecations
-[v1.8]: https://github.com/elixir-lang/elixir/blob/master/CHANGELOG.md#4-hard-deprecations
+[v1.8]: https://github.com/elixir-lang/elixir/blob/v1.8/CHANGELOG.md#4-hard-deprecations