Add deprecations for Spec/SpecItem.

The internal features from those classes will be removed in future
versions:

- The `Spec` class is incompatible with the support of multiple syntaxes
- The `SpecItem` class was an implementation detail, but doesn't support
  complex `Range` combinations.

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 8ef6048..31ee8aa 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -10,11 +10,17 @@ ChangeLog
       (``Version(major=1, minor=2, patch=3)``)
     * Add ``Version.truncate()`` to build a truncated copy of a ``Version``
     * Add ``NpmSpec(...)``, following strict NPM matching rules (https://docs.npmjs.com/misc/semver)
+    * Add ``Spec.parse('xxx', syntax='<syntax>')`` for simpler multi-syntax support
 
 *Bugfix:*
 
     * Fix inconsistent behaviour regarding versions with a prerelease specification.
 
+*Deprecated:*
+
+    * Deprecate the ``Spec`` class (Removed in 3.1); use the ``SimpleSpec`` class instead
+    * Deprecate the internal ``SpecItem`` class (Removed in 3.0).
+
 *Removed:*
 
     * Remove support for Python2 (End of life 4 months after this release)