Changelog & version bump for 8.7.0

ChangeLog

@@ -1,3 +1,14 @@
+Version 8.7.0
+-------------
+
+    * The protoc_flags argument to proto_library now applies transitively to any
+      further protoc_library rules that depend on it, in a similar fashion to C++ rules.
+      Since protos always need all transitive dependencies to compile they typically
+      require transitive compiler flags as well.
+    * Added a decompose function to the build builtins which breaks a build label into
+      its package and name parts.
+
+
 Version 8.6.1
 -------------
 

VERSION

@@ -1 +1 @@
-8.6.1
+8.7.0

src/parse/rules/misc_rules.build_defs

@@ -588,6 +588,9 @@ def tarball(name, srcs, out=None, deps=None, subdir=None, gzip=True,
 def decompose(label):
     """Decomposes a build label into the package and name parts.
 
+    Consider carefully when you should use this - command replacements may be more appropriate.
+    Most rules should be able to accept labels without having to know anything about their structure.
+
     Args:
       label (str): A build label in either relative or absolute form.
     Raises: