diff --git a/HASH b/HASH
index 4ae336f2..02caa49c 100644
--- a/HASH
+++ b/HASH
@@ -1,4 +1,4 @@
-suse-tumbleweed/x86_64: 0ac23bf5e3b8c21775911bc8d7afc9c9
+suse-tumbleweed/x86_64: 6d39e6eb74af4b013e5b98175aea29ae
 suse-tumbleweed/i586: 86ea923ca3861900dd03d4b1da44f8b6
 debian-10/amd64: 47167eb2d7fe2d845a1b12e0702a6e9b
 suse-42.3/x86_64: bd0e29fda82e38c89d2ed6f11797ce3a
@@ -7,4 +7,4 @@ debian-8/amd64: b16e55fee0967a75aa67a4d859f0455d
 ubuntu-18.04/amd64: 190b5c45953399fd93354db0621d6f5f
 debian-10/armhf: 5d92c234d483deaf44c80cad168a8d5d
 debian-2025.4/amd64: 977965179baa6fd24d0975a05d583eb6
-kali-rolling/amd64: e76880f8ee0608d4220eb77e0abddc62
+kali-rolling/amd64: 6d39e6eb74af4b013e5b98175aea29ae
diff --git a/RELEASES b/RELEASES
index d83a069c..4c9d0084 100644
--- a/RELEASES
+++ b/RELEASES
@@ -1,4 +1,4 @@
-suse-tumbleweed/x86_64: 1.0.0-260
+suse-tumbleweed/x86_64: 1.0.0-262
 suse-tumbleweed/i586: 1.0.0-44
 debian-10/amd64: 1.0.0-47
 suse-42.3/x86_64: 1.0.0-48
@@ -7,4 +7,4 @@ debian-8/amd64: 1.0.0-84
 ubuntu-18.04/amd64: 1.0.0-99
 debian-10/armhf: 1.0.0-102
 debian-2025.4/amd64: 1.0.0-172
-kali-rolling/amd64: 1.0.0-261
+kali-rolling/amd64: 1.0.0-262
diff --git a/VERSION b/VERSION
index 3f5d3bf1..e77026b9 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.0-261-dev
+1.0.0-262-dev
diff --git a/src/python/jw/pkg/App.py b/src/python/jw/pkg/App.py
index af9b9311..32a4db97 100644
--- a/src/python/jw/pkg/App.py
+++ b/src/python/jw/pkg/App.py
@@ -209,8 +209,9 @@ class App(Base):
         scope: Scope,
         names_only: bool,
     ) -> None:
-        name = self.strip_module_from_spec(spec)
-        mod = re.split('([=><]+)', spec)[0].strip()
+        dep = Dependency(spec)
+        name = dep.base_name
+        mod = dep.full_name
         if names_only:
             spec = name
         if spec in buf:
diff --git a/src/python/jw/pkg/lib/version/Dependency.py b/src/python/jw/pkg/lib/version/Dependency.py
index 8ed8ee3b..01c710c8 100644
--- a/src/python/jw/pkg/lib/version/Dependency.py
+++ b/src/python/jw/pkg/lib/version/Dependency.py
@@ -22,7 +22,7 @@ class Dependency:  # export
     class Error(ValueError):
         pass
 
-    __SPLIT_RE: ClassVar[re.Pattern[str]] = re.compile('([=><]+)')
+    __SPLIT_RE: ClassVar[re.Pattern[str]] = re.compile('([~=><!]+)')
 
     @property
     def __target_prefix(self) -> str:
@@ -45,6 +45,12 @@ class Dependency:  # export
             case 3:
                 if not parts[0] or not parts[2]:
                     self.__raise(f'Invalid dependency spec "{self.__spec}"')
+                if parts[1] not in ('=', '<', '<=', '>', '>='):
+                    self.__raise(
+                        f'Spec "{self.__spec}": unsupported operator '
+                        f'"{parts[1]}", supported operators are =, <, '
+                        '<=, > and >='
+                    )
                 if parts[2] == 'REVISION':
                     self.__raise(
                         f'Spec "{self.__spec}": a bare REVISION renders as a '
diff --git a/test/unit/python/jw/pkg/lib/version/test.py b/test/unit/python/jw/pkg/lib/version/test.py
index 91783ae3..07817f87 100644
--- a/test/unit/python/jw/pkg/lib/version/test.py
+++ b/test/unit/python/jw/pkg/lib/version/test.py
@@ -40,7 +40,7 @@ assert d.base_name == 'dev'
 assert d.full_name == 'dev'
 
 # Operators with and without whitespace
-for op in ['=', '==', '<', '<=', '>', '>=']:
+for op in ['=', '<', '<=', '>', '>=']:
     d = Dependency(f'foo {op} 1.0')
     assert d.base_name == 'foo'
     assert d.full_name == 'foo'
@@ -135,14 +135,6 @@ d = Dependency('foo = 1.2.3', app.get_version)
 assert d.constraint_str(as_range = True) == 'foo = 1.2.3'
 d = Dependency('foo = 1.0-rc1', app.get_version)
 assert d.constraint_str(as_range = True) == 'foo = 1.0-rc1'
-# unimplemented operators raise
-d = Dependency('foo == 1.2.3-45', app.get_version)
-try:
-    d.constraint_str(as_range = True)
-    assert False, 'Should have raised'
-except NotImplementedError:
-    pass
-
 # Default syntax is SEM_VER
 d = Dependency('foo < 2.0')
 assert d.constraint_str(untemplated = False) == 'foo < 2.0'
@@ -238,6 +230,26 @@ for bad in ['', 'foo =', ' = 1.0']:
     except Dependency.Error:
         pass
 
+# Operators outside the supported set are rejected when parsed,
+# not folded into the package name or deferred to expansion
+for bad in [
+    'foo ~= 1.0',
+    'foo~=1.0',
+    'foo ~ 1.0',
+    'foo != 1.0',
+    'foo!=1.0',
+    'foo == 1.0',
+    'foo==1.0',
+    'foo === 1.0',
+    'foo << 1.0',
+    'foo >> 1.0',
+]:
+    try:
+        Dependency(bad).full_name
+        assert False, f'Should have raised for {bad!r}'
+    except Dependency.Error as e:
+        assert 'unsupported operator' in str(e)
+
 # str
 assert str(Dependency('foo-devel >= 1.0')) == 'foo-devel >= 1.0'
 assert str(Dependency('foo')) == 'foo'