diff --git a/CHANGES.txt b/CHANGES.txt
index 1ffb42366..218060f31 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,7 @@
-**8.2.0 (unreleased)**
+**9.0.0 (unreleased)**
+
+* **BACKWARD INCOMPATIBLE** Remove the attempted autodetection of requirement
+  names from URLs, URLs must include a name via `#egg=`.
 
 * **DEPRECATION** ``pip install --egg`` have been deprecated and will be
   removed in the future. This "feature" has a long list of drawbacks where it
diff --git a/pip/__init__.py b/pip/__init__.py
index 1cd200532..e41ee8392 100755
--- a/pip/__init__.py
+++ b/pip/__init__.py
@@ -43,7 +43,7 @@ import pip.cmdoptions
 cmdoptions = pip.cmdoptions
 
 # The version as used in the setup.py and the docs conf.py
-__version__ = "8.2.0.dev0"
+__version__ = "9.0.0.dev0"
 
 
 logger = logging.getLogger(__name__)
diff --git a/pip/index.py b/pip/index.py
index b1d08f59d..5487f9c7d 100644
--- a/pip/index.py
+++ b/pip/index.py
@@ -20,7 +20,7 @@ from pip.utils import (
     cached_property, splitext, normalize_path,
     ARCHIVE_EXTENSIONS, SUPPORTED_EXTENSIONS,
 )
-from pip.utils.deprecation import RemovedInPip9Warning, RemovedInPip10Warning
+from pip.utils.deprecation import RemovedInPip10Warning
 from pip.utils.logging import indent_log
 from pip.utils.packaging import check_requires_python
 from pip.exceptions import (
@@ -198,7 +198,7 @@ class PackageFinder(object):
             warnings.warn(
                 "Dependency Links processing has been deprecated and will be "
                 "removed in a future release.",
-                RemovedInPip9Warning,
+                RemovedInPip10Warning,
             )
             self.dependency_links.extend(links)
 
diff --git a/pip/req/req_install.py b/pip/req/req_install.py
index f9a66e0f2..cf7cba1fc 100644
--- a/pip/req/req_install.py
+++ b/pip/req/req_install.py
@@ -40,7 +40,7 @@ from pip.utils import (
 )
 
 from pip.utils.hashes import Hashes
-from pip.utils.deprecation import RemovedInPip9Warning, RemovedInPip10Warning
+from pip.utils.deprecation import RemovedInPip10Warning
 from pip.utils.logging import indent_log
 from pip.utils.setuptools_build import SETUPTOOLS_SHIM
 from pip.utils.ui import open_spinner
@@ -1106,24 +1106,6 @@ def _strip_postfix(req):
     return req
 
 
-def _build_req_from_url(url):
-
-    parts = [p for p in url.split('#', 1)[0].split('/') if p]
-
-    req = None
-    if len(parts) > 2 and parts[-2] in ('tags', 'branches', 'tag', 'branch'):
-        req = parts[-3]
-    elif len(parts) > 1 and parts[-1] == 'trunk':
-        req = parts[-2]
-    if req:
-        warnings.warn(
-            'Sniffing the requirement name from the url is deprecated and '
-            'will be removed in the future. Please specify an #egg segment '
-            'instead.', RemovedInPip9Warning,
-            stacklevel=2)
-    return req
-
-
 def parse_editable(editable_req, default_vcs=None):
     """Parses an editable requirement into:
         - a requirement name
@@ -1193,7 +1175,9 @@ def parse_editable(editable_req, default_vcs=None):
 
     package_name = Link(url).egg_fragment
     if not package_name:
-        package_name = _build_req_from_url(editable_req)
+        raise InstallationError(
+            "Could not detect requirement name, please specify one with #egg="
+        )
     if not package_name:
         raise InstallationError(
             '--editable=%s is not the right format; it must have '
diff --git a/pip/utils/deprecation.py b/pip/utils/deprecation.py
index 74f621e01..c3f799e64 100644
--- a/pip/utils/deprecation.py
+++ b/pip/utils/deprecation.py
@@ -15,15 +15,15 @@ class Pending(object):
     pass
 
 
-class RemovedInPip9Warning(PipDeprecationWarning):
+class RemovedInPip10Warning(PipDeprecationWarning):
     pass
 
 
-class RemovedInPip10Warning(PipDeprecationWarning, Pending):
+class RemovedInPip11Warning(PipDeprecationWarning, Pending):
     pass
 
 
-class Python26DeprecationWarning(PipDeprecationWarning, Pending):
+class Python26DeprecationWarning(PipDeprecationWarning):
     pass