From 4dd49c1fbce61bd2439c3b1adafa7e1fe930cccf Mon Sep 17 00:00:00 2001
From: Jens Vagelpohl <jens@plyp.com>
Date: Sun, 19 Oct 2025 11:41:43 +0200
Subject: [PATCH 1/9] - transferring Python 3.14-related changes from the
 typing branch

---
 CHANGES.rst                                |   2 +-
 docs/contributing/ast/python3_14.ast       | 196 +++++++++++++++++++++
 docs/contributing/changes_from313to314.rst |   5 +
 docs/contributing/index.rst                |   6 +
 setup.py                                   |   1 +
 src/RestrictedPython/_compat.py            |   2 +
 src/RestrictedPython/transformer.py        |  27 +++
 tests/transformer/test_tstring.py          | 105 +++++++++++
 8 files changed, 343 insertions(+), 1 deletion(-)
 create mode 100644 docs/contributing/ast/python3_14.ast
 create mode 100644 docs/contributing/changes_from313to314.rst
 create mode 100644 tests/transformer/test_tstring.py

diff --git a/CHANGES.rst b/CHANGES.rst
index 8823a78..a603aac 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -4,7 +4,7 @@ Changes
 8.1 (unreleased)
 ----------------
 
-- Nothing changed yet.
+- Allow to use the package with Python 3.14.
 
 
 8.1a1.dev0 (2025-03-20)
diff --git a/docs/contributing/ast/python3_14.ast b/docs/contributing/ast/python3_14.ast
new file mode 100644
index 0000000..2c1e0b7
--- /dev/null
+++ b/docs/contributing/ast/python3_14.ast
@@ -0,0 +1,196 @@
+-- Python 3.14 AST
+-- ASDL's 4 builtin types are:
+-- identifier, int, string, constant
+
+module Python version "3.14"
+{
+    mod = Module(stmt* body, type_ignore* type_ignores)
+        | Interactive(stmt* body)
+        | Expression(expr body)
+        | FunctionType(expr* argtypes, expr returns)
+
+    stmt = FunctionDef(identifier name,
+                       arguments args,
+                       stmt* body,
+                       expr* decorator_list,
+                       expr? returns,
+                       string? type_comment,
+                       type_param* type_params)
+         | AsyncFunctionDef(identifier name,
+                            arguments args,
+                            stmt* body,
+                            expr* decorator_list,
+                            expr? returns,
+                            string? type_comment,
+                            type_param* type_params)
+
+         | ClassDef(identifier name,
+                    expr* bases,
+                    keyword* keywords,
+                    stmt* body,
+                    expr* decorator_list,
+                    type_param* type_params)
+         | Return(expr? value)
+
+         | Delete(expr* targets)
+         | Assign(expr* targets, expr value, string? type_comment)
+         | TypeAlias(expr name, type_param* type_params, expr value)
+         | AugAssign(expr target, operator op, expr value)
+         -- 'simple' indicates that we annotate simple name without parens
+         | AnnAssign(expr target, expr annotation, expr? value, int simple)
+
+         -- use 'orelse' because else is a keyword in target languages
+         | For(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)
+         | AsyncFor(expr target, expr iter, stmt* body, stmt* orelse, string? type_comment)
+         | While(expr test, stmt* body, stmt* orelse)
+         | If(expr test, stmt* body, stmt* orelse)
+         | With(withitem* items, stmt* body, string? type_comment)
+         | AsyncWith(withitem* items, stmt* body, string? type_comment)
+
+         | Match(expr subject, match_case* cases)
+
+         | Raise(expr? exc, expr? cause)
+         | Try(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)
+         | TryStar(stmt* body, excepthandler* handlers, stmt* orelse, stmt* finalbody)
+         | Assert(expr test, expr? msg)
+
+         | Import(alias* names)
+         | ImportFrom(identifier? module, alias* names, int? level)
+
+         | Global(identifier* names)
+         | Nonlocal(identifier* names)
+         | Expr(expr value)
+         | Pass
+         | Break
+         | Continue
+
+         -- col_offset is the byte offset in the utf8 string the parser uses
+         attributes (int lineno, int col_offset, int? end_lineno, int? end_col_offset)
+
+         -- BoolOp() can use left & right?
+    expr = BoolOp(boolop op, expr* values)
+         | NamedExpr(expr target, expr value)
+         | BinOp(expr left, operator op, expr right)
+         | UnaryOp(unaryop op, expr operand)
+         | Lambda(arguments args, expr body)
+         | IfExp(expr test, expr body, expr orelse)
+         | Dict(expr?* keys, expr* values)
+         | Set(expr* elts)
+         | ListComp(expr elt, comprehension* generators)
+         | SetComp(expr elt, comprehension* generators)
+         | DictComp(expr key, expr value, comprehension* generators)
+         | GeneratorExp(expr elt, comprehension* generators)
+         -- the grammar constrains where yield expressions can occur
+         | Await(expr value)
+         | Yield(expr? value)
+         | YieldFrom(expr value)
+         -- need sequences for compare to distinguish between
+         -- x < 4 < 3 and (x < 4) < 3
+         | Compare(expr left, cmpop* ops, expr* comparators)
+         | Call(expr func, expr* args, keyword* keywords)
+         | FormattedValue(expr value, int conversion, expr? format_spec)
+         | Interpolation(expr value, constant str, int conversion, expr? format_spec)
+         | JoinedStr(expr* values)
+         | TemplateStr(expr* values)
+         | Constant(constant value, string? kind)
+
+         -- the following expression can appear in assignment context
+         | Attribute(expr value, identifier attr, expr_context ctx)
+         | Subscript(expr value, expr slice, expr_context ctx)
+         | Starred(expr value, expr_context ctx)
+         | Name(identifier id, expr_context ctx)
+         | List(expr* elts, expr_context ctx)
+         | Tuple(expr* elts, expr_context ctx)
+
+         -- can appear only in Subscript
+         | Slice(expr? lower, expr? upper, expr? step)
+
+          -- col_offset is the byte offset in the utf8 string the parser uses
+          attributes (int lineno, int col_offset, int? end_lineno, int? end_col_offset)
+
+    expr_context = Load
+                 | Store
+                 | Del
+
+    boolop = And
+           | Or
+
+    operator = Add
+             | Sub
+             | Mult
+             | MatMult
+             | Div
+             | Mod
+             | Pow
+             | LShift
+             | RShift
+             | BitOr
+             | BitXor
+             | BitAnd
+             | FloorDiv
+
+    unaryop = Invert
+            | Not
+            | UAdd
+            | USub
+
+    cmpop = Eq
+          | NotEq
+          | Lt
+          | LtE
+          | Gt
+          | GtE
+          | Is
+          | IsNot
+          | In
+          | NotIn
+
+    comprehension = (expr target, expr iter, expr* ifs, int is_async)
+
+    excepthandler = ExceptHandler(expr? type, identifier? name, stmt* body)
+                    attributes (int lineno, int col_offset, int? end_lineno, int? end_col_offset)
+
+    arguments = (arg* posonlyargs,
+                 arg* args,
+                 arg? vararg,
+                 arg* kwonlyargs,
+                 expr* kw_defaults,
+                 arg? kwarg,
+                 expr* defaults)
+
+    arg = (identifier arg, expr? annotation, string? type_comment)
+          attributes (int lineno, int col_offset, int? end_lineno, int? end_col_offset)
+
+    -- keyword arguments supplied to call (NULL identifier for **kwargs)
+    keyword = (identifier? arg, expr value)
+              attributes (int lineno, int col_offset, int? end_lineno, int? end_col_offset)
+
+    -- import name with optional 'as' alias.
+    alias = (identifier name, identifier? asname)
+            attributes (int lineno, int col_offset, int? end_lineno, int? end_col_offset)
+
+    withitem = (expr context_expr, expr? optional_vars)
+
+    match_case = (pattern pattern, expr? guard, stmt* body)
+
+    pattern = MatchValue(expr value)
+            | MatchSingleton(constant value)
+            | MatchSequence(pattern* patterns)
+            | MatchMapping(expr* keys, pattern* patterns, identifier? rest)
+            | MatchClass(expr cls, pattern* patterns, identifier* kwd_attrs, pattern* kwd_patterns)
+
+            | MatchStar(identifier? name)
+            -- The optional "rest" MatchMapping parameter handles capturing extra mapping keys
+
+            | MatchAs(pattern? pattern, identifier? name)
+            | MatchOr(pattern* patterns)
+
+             attributes (int lineno, int col_offset, int end_lineno, int end_col_offset)
+
+    type_ignore = TypeIgnore(int lineno, string tag)
+
+    type_param = TypeVar(identifier name, expr? bound, expr? default_value)
+               | ParamSpec(identifier name, expr? default_value)
+               | TypeVarTuple(identifier name, expr? default_value)
+               attributes (int lineno, int col_offset, int end_lineno, int end_col_offset)
+}
diff --git a/docs/contributing/changes_from313to314.rst b/docs/contributing/changes_from313to314.rst
new file mode 100644
index 0000000..2690a88
--- /dev/null
+++ b/docs/contributing/changes_from313to314.rst
@@ -0,0 +1,5 @@
+Changes from Python 3.13 to Python 3.14
+---------------------------------------
+
+.. literalinclude:: ast/python3_14.ast
+   :diff: ast/python3_13.ast
diff --git a/docs/contributing/index.rst b/docs/contributing/index.rst
index 23e93b2..69909e4 100644
--- a/docs/contributing/index.rst
+++ b/docs/contributing/index.rst
@@ -103,6 +103,7 @@ A (modified style) Copy of all Abstract Grammar Definitions for the Python versi
    changes_from310to311
    changes_from311to312
    changes_from312to313
+   changes_from313to314
 
 .. _understand:
 
@@ -235,6 +236,7 @@ Technical Backgrounds - Links to External Documentation
 
   * AST Grammar of Python (`Status of Python Versions`_)
 
+    * `Python 3.14 AST`_ (EOL 2030-10)
     * `Python 3.13 AST`_ (EOL 2029-10)
     * `Python 3.12 AST`_ (EOL 2028-10)
     * `Python 3.11 AST`_ (EOL 2027-10)
@@ -257,6 +259,8 @@ Todos
 
 .. _`What's new in Python`: https://docs.python.org/3/whatsnew/
 
+.. _`What's new in Python 3.14`: https://docs.python.org/3.14/whatsnew/3.14.html
+
 .. _`What's new in Python 3.13`: https://docs.python.org/3.13/whatsnew/3.13.html
 
 .. _`What's new in Python 3.12`: https://docs.python.org/3.12/whatsnew/3.12.html
@@ -281,6 +285,8 @@ Todos
 
 .. _`Python 3 AST`: https://docs.python.org/3/library/ast.html#abstract-grammar
 
+.. _`Python 3.14 AST`: https://docs.python.org/3.14/library/ast.html#abstract-grammar
+
 .. _`Python 3.13 AST`: https://docs.python.org/3.13/library/ast.html#abstract-grammar
 
 .. _`Python 3.12 AST`: https://docs.python.org/3.12/library/ast.html#abstract-grammar
diff --git a/setup.py b/setup.py
index 45bf79d..3ffa9d7 100644
--- a/setup.py
+++ b/setup.py
@@ -44,6 +44,7 @@ def read(*rnames):
           'Programming Language :: Python :: 3.11',
           'Programming Language :: Python :: 3.12',
           'Programming Language :: Python :: 3.13',
+          'Programming Language :: Python :: 3.14',
           'Programming Language :: Python :: Implementation :: CPython',
           'Topic :: Security',
       ],
diff --git a/src/RestrictedPython/_compat.py b/src/RestrictedPython/_compat.py
index 2d85cc4..2c5641e 100644
--- a/src/RestrictedPython/_compat.py
+++ b/src/RestrictedPython/_compat.py
@@ -6,5 +6,7 @@
 IS_PY310_OR_GREATER = _version.major == 3 and _version.minor >= 10
 IS_PY311_OR_GREATER = _version.major == 3 and _version.minor >= 11
 IS_PY312_OR_GREATER = _version.major == 3 and _version.minor >= 12
+IS_PY313_OR_GREATER = _version.major == 3 and _version.minor >= 13
+IS_PY314_OR_GREATER = _version.major == 3 and _version.minor >= 14
 
 IS_CPYTHON = platform.python_implementation() == 'CPython'
diff --git a/src/RestrictedPython/transformer.py b/src/RestrictedPython/transformer.py
index 7fd3016..fa6a559 100644
--- a/src/RestrictedPython/transformer.py
+++ b/src/RestrictedPython/transformer.py
@@ -563,6 +563,33 @@ def visit_FormattedValue(self, node):
         """Allow f-strings without restrictions."""
         return self.node_contents_visit(node)
 
+    def visit_TemplateStr(self, node):
+        """Template strings are allowed by default.
+
+        As Template strings are a very basic template mechanism, that needs
+        additional rendering logic to be useful, they are not blocked by
+        default.
+        Those rendering logic would be affected by RestrictedPython as well.
+        """
+        self.warn(
+            node,
+            'TemplateStr statements are not yet allowed, '
+            'please use f-strings or a real template engine instead.')
+        # self.not_allowed(node)
+        return self.node_contents_visit(node)
+
+    def visit_Interpolation(self, node):
+        """Interpolations are allowed by default.
+
+        As Interpolations are part of Template Strings, they are needed
+        to be reached in the context of RestrictedPython as Template Strings
+        are allowed. As a user has to provide additional rendering logic
+        to make use of Template Strings, the security implications of
+        Interpolations are limited in the context of RestrictedPython.
+        """
+        # self.not_allowed(node)
+        return self.node_contents_visit(node)
+
     def visit_JoinedStr(self, node):
         """Allow joined string without restrictions."""
         return self.node_contents_visit(node)
diff --git a/tests/transformer/test_tstring.py b/tests/transformer/test_tstring.py
new file mode 100644
index 0000000..de0ed35
--- /dev/null
+++ b/tests/transformer/test_tstring.py
@@ -0,0 +1,105 @@
+import pytest
+
+from RestrictedPython import compile_restricted_exec
+from RestrictedPython._compat import IS_PY314_OR_GREATER
+from RestrictedPython.Eval import default_guarded_getattr
+from RestrictedPython.Eval import default_guarded_getiter
+from RestrictedPython.PrintCollector import PrintCollector
+
+
+if IS_PY314_OR_GREATER:
+    from string.templatelib import Template
+
+
+@pytest.mark.skipif(
+    not IS_PY314_OR_GREATER,
+    reason="t-strings were added in Python 3.14.",
+)
+def test_transform():
+    """It compiles a function call successfully and returns the used name."""
+
+    result = compile_restricted_exec('a = t"{max([1, 2, 3])}"')
+    assert result.errors == ()
+    assert result.warnings == [
+        'Line 1: TemplateStr statements are not yet allowed, please use f-strings or a real template engine instead.']  # NOQA: E501
+    assert result.code is not None
+    loc = {}
+    exec(result.code, {}, loc)
+    template = loc['a']
+    assert isinstance(template, Template)
+    assert template.values == (3, )
+    assert result.used_names == {'max': True}
+
+
+@pytest.mark.skipif(
+    not IS_PY314_OR_GREATER,
+    reason="t-strings were added in Python 3.14.",
+)
+def test_visit_invalid_variable_name():
+    """Accessing private attributes is forbidden.
+
+    This is just a smoke test to validate that restricted exec is used
+    in the run-time evaluation of t-strings.
+    """
+    result = compile_restricted_exec('t"{__init__}"')
+    assert result.errors == (
+        'Line 1: "__init__" is an invalid variable name because it starts with "_"',  # NOQA: E501
+    )
+
+
+t_string_self_documenting_expressions_example = """
+from datetime import date
+from string.templatelib import Template, Interpolation
+
+user = 'eric_idle'
+member_since = date(1975, 7, 31)
+
+def render_template(template: Template) -> str:
+    result = ''
+    for part in template:
+        if isinstance(part, Interpolation):
+            if isinstance(part.value, str):
+                result += part.value.upper()
+            else:
+                result += str(part.value)
+        else:
+            result += part.lower()
+    return result
+
+print(render_template(t'The User {user} is a member since {member_since}'))
+"""
+
+
+@pytest.mark.skipif(
+    not IS_PY314_OR_GREATER,
+    reason="t-strings were added in Python 3.14.",
+)
+def test_t_string_self_documenting_expressions():
+    """Checks if t-string self-documenting expressions is checked."""
+    result = compile_restricted_exec(
+        t_string_self_documenting_expressions_example,
+    )
+    # assert result.errors == (
+    #   'Line 13: TemplateStr statements are not allowed.',
+    # )
+    # assert result.warnings == [
+    #     'Line 13: TemplateStr statements are not yet allowed, please use '
+    #     'f-strings or a real template engine instead.',
+    #     "Line None: Prints, but never reads 'printed' variable."
+    # ]
+    # assert result.code is None
+    assert result.errors == ()
+    assert result.warnings == [
+        'Line 20: TemplateStr statements are not yet allowed, '
+        'please use f-strings or a real template engine instead.',
+        "Line None: Prints, but never reads 'printed' variable."]
+    assert result.code is not None
+
+    glb = {
+        '_print_': PrintCollector,
+        '_getattr_': default_guarded_getattr,
+        '_getiter_': default_guarded_getiter,
+        '_inplacevar_': lambda x, y, z: y + z,
+    }
+    exec(result.code, glb)
+    assert glb['_print']() == "the user ERIC_IDLE is a member since 1975-07-31\n"  # NOQA: E501

From 3bf119de16099d3842b8fc501202bd86d73f78fe Mon Sep 17 00:00:00 2001
From: Jens Vagelpohl <jens@plyp.com>
Date: Sun, 19 Oct 2025 11:43:10 +0200
Subject: [PATCH 2/9] - apply latest zope.meta templates

---
 .github/workflows/tests.yml | 2 +-
 .meta.toml                  | 2 +-
 .pre-commit-config.yaml     | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 8cb5ba8..4f30682 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -47,7 +47,7 @@ jobs:
       with:
         persist-credentials: false
     - name: Install uv + caching
-      uses: astral-sh/setup-uv@v6
+      uses: astral-sh/setup-uv@v7
       with:
         enable-cache: true
         cache-dependency-glob: |
diff --git a/.meta.toml b/.meta.toml
index c5b68d7..57b51a9 100644
--- a/.meta.toml
+++ b/.meta.toml
@@ -2,7 +2,7 @@
 # https://github.com/zopefoundation/meta/tree/master/config/pure-python
 [meta]
 template = "pure-python"
-commit-id = "7dcce077"
+commit-id = "72252845"
 
 [python]
 with-pypy = false
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index d2607c9..cbb2541 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -3,7 +3,7 @@
 minimum_pre_commit_version: '3.6'
 repos:
   - repo: https://github.com/pycqa/isort
-    rev: "6.1.0"
+    rev: "7.0.0"
     hooks:
     - id: isort
   - repo: https://github.com/hhatto/autopep8
@@ -12,7 +12,7 @@ repos:
     - id: autopep8
       args: [--in-place, --aggressive, --aggressive]
   - repo: https://github.com/asottile/pyupgrade
-    rev: v3.20.0
+    rev: v3.21.0
     hooks:
     - id: pyupgrade
       args: [--py39-plus]

From 5434160829aeacd501109fef3d9dbba1b75f89f8 Mon Sep 17 00:00:00 2001
From: Jens Vagelpohl <jens@plyp.com>
Date: Sun, 19 Oct 2025 11:49:16 +0200
Subject: [PATCH 3/9] - fix test-related issues

---
 .meta.toml     | 2 +-
 docs/conf.py   | 1 +
 pyproject.toml | 2 +-
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/.meta.toml b/.meta.toml
index 57b51a9..04360f6 100644
--- a/.meta.toml
+++ b/.meta.toml
@@ -55,7 +55,7 @@ coverage-setenv = [
     ]
 
 [coverage]
-fail-under = 97.3
+fail-under = 97.2
 
 [isort]
 additional-sources = "{toxinidir}/tests"
diff --git a/docs/conf.py b/docs/conf.py
index eb7dc5e..05f4c16 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -117,6 +117,7 @@
     'python311': ('https://docs.python.org/3.11', None),
     'python312': ('https://docs.python.org/3.12', None),
     'python313': ('https://docs.python.org/3.13', None),
+    'python314': ('https://docs.python.org/3.14', None),
 }
 
 # Options for sphinx.ext.todo:
diff --git a/pyproject.toml b/pyproject.toml
index 89faa35..7b94ef6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ branch = true
 source = ["RestrictedPython"]
 
 [tool.coverage.report]
-fail_under = 97.3
+fail_under = 97.2
 precision = 2
 ignore_errors = true
 show_missing = true

From c1b43c5c67f951dff3580fad8f3a5218c64374d4 Mon Sep 17 00:00:00 2001
From: Jens Vagelpohl <jens@plyp.com>
Date: Sun, 19 Oct 2025 11:52:35 +0200
Subject: [PATCH 4/9] - fix version number in Sphinx docs

---
 docs/conf.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/conf.py b/docs/conf.py
index 05f4c16..deebf27 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -60,9 +60,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '7.5'
+version = '8.1'
 # The full version, including alpha/beta/rc tags.
-release = '7.5'
+release = '8.1'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.

From cb7fcef1e4bb8899bcc25a63d20d9ed787178fcd Mon Sep 17 00:00:00 2001
From: Jens Vagelpohl <jens@plyp.com>
Date: Sun, 19 Oct 2025 12:07:37 +0200
Subject: [PATCH 5/9] - update transformer.INSPECT_ATTRIBUTES

---
 src/RestrictedPython/transformer.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/RestrictedPython/transformer.py b/src/RestrictedPython/transformer.py
index fa6a559..e868b2f 100644
--- a/src/RestrictedPython/transformer.py
+++ b/src/RestrictedPython/transformer.py
@@ -73,6 +73,7 @@
     "f_back",
     "f_builtins",
     "f_code",
+    "f_generator",
     "f_globals",
     # "f_lasti",  # int
     # "f_lineno",  # int
@@ -99,6 +100,7 @@
     # on generator objects:
     "gi_frame",
     # "gi_running",  # bool
+    # "gi_suspended",  # bool
     "gi_code",
     "gi_yieldfrom",
     # on coroutine objects:

From c081b10ac6ac31b33a7095def3f48e5e085ca403 Mon Sep 17 00:00:00 2001
From: Jens Vagelpohl <jens@plyp.com>
Date: Sun, 19 Oct 2025 15:55:20 +0200
Subject: [PATCH 6/9] - use a pinned commit hash for astral/setup-uv action

---
 .github/workflows/tests.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 4f30682..ace0d07 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -47,7 +47,8 @@ jobs:
       with:
         persist-credentials: false
     - name: Install uv + caching
-      uses: astral-sh/setup-uv@v7
+      # astral/setup-uv@7
+      uses: astral-sh/setup-uv@3259c6206f993105e3a61b142c2d97bf4b9ef83d
       with:
         enable-cache: true
         cache-dependency-glob: |

From 088a8a510a4b725631f96bfdd1264ebcab59e81b Mon Sep 17 00:00:00 2001
From: Jens Vagelpohl <jens@plyp.com>
Date: Sun, 19 Oct 2025 15:59:42 +0200
Subject: [PATCH 7/9] - remove outdated code and expand change log entry

---
 CHANGES.rst                         | 2 +-
 src/RestrictedPython/transformer.py | 6 ------
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/CHANGES.rst b/CHANGES.rst
index a603aac..bf3c7de 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -4,7 +4,7 @@ Changes
 8.1 (unreleased)
 ----------------
 
-- Allow to use the package with Python 3.14.
+- Allow to use the package with Python 3.14 including t-string support.
 
 
 8.1a1.dev0 (2025-03-20)
diff --git a/src/RestrictedPython/transformer.py b/src/RestrictedPython/transformer.py
index e868b2f..fa71e48 100644
--- a/src/RestrictedPython/transformer.py
+++ b/src/RestrictedPython/transformer.py
@@ -573,11 +573,6 @@ def visit_TemplateStr(self, node):
         default.
         Those rendering logic would be affected by RestrictedPython as well.
         """
-        self.warn(
-            node,
-            'TemplateStr statements are not yet allowed, '
-            'please use f-strings or a real template engine instead.')
-        # self.not_allowed(node)
         return self.node_contents_visit(node)
 
     def visit_Interpolation(self, node):
@@ -589,7 +584,6 @@ def visit_Interpolation(self, node):
         to make use of Template Strings, the security implications of
         Interpolations are limited in the context of RestrictedPython.
         """
-        # self.not_allowed(node)
         return self.node_contents_visit(node)
 
     def visit_JoinedStr(self, node):

From 21cd7ed2f201855e5db6d0a276e470de0a4a67ad Mon Sep 17 00:00:00 2001
From: Jens Vagelpohl <jens@plyp.com>
Date: Sun, 19 Oct 2025 16:03:18 +0200
Subject: [PATCH 8/9] - fix test code

---
 tests/transformer/test_tstring.py | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/tests/transformer/test_tstring.py b/tests/transformer/test_tstring.py
index de0ed35..06ccdd4 100644
--- a/tests/transformer/test_tstring.py
+++ b/tests/transformer/test_tstring.py
@@ -79,20 +79,7 @@ def test_t_string_self_documenting_expressions():
     result = compile_restricted_exec(
         t_string_self_documenting_expressions_example,
     )
-    # assert result.errors == (
-    #   'Line 13: TemplateStr statements are not allowed.',
-    # )
-    # assert result.warnings == [
-    #     'Line 13: TemplateStr statements are not yet allowed, please use '
-    #     'f-strings or a real template engine instead.',
-    #     "Line None: Prints, but never reads 'printed' variable."
-    # ]
-    # assert result.code is None
     assert result.errors == ()
-    assert result.warnings == [
-        'Line 20: TemplateStr statements are not yet allowed, '
-        'please use f-strings or a real template engine instead.',
-        "Line None: Prints, but never reads 'printed' variable."]
     assert result.code is not None
 
     glb = {

From 5b58b0c8c5a3525e585a1e28860973bc0181dca6 Mon Sep 17 00:00:00 2001
From: Jens Vagelpohl <jens@plyp.com>
Date: Sun, 19 Oct 2025 16:05:37 +0200
Subject: [PATCH 9/9] - fix test code

---
 tests/transformer/test_tstring.py | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/tests/transformer/test_tstring.py b/tests/transformer/test_tstring.py
index 06ccdd4..3a2bf2d 100644
--- a/tests/transformer/test_tstring.py
+++ b/tests/transformer/test_tstring.py
@@ -20,8 +20,7 @@ def test_transform():
 
     result = compile_restricted_exec('a = t"{max([1, 2, 3])}"')
     assert result.errors == ()
-    assert result.warnings == [
-        'Line 1: TemplateStr statements are not yet allowed, please use f-strings or a real template engine instead.']  # NOQA: E501
+    assert result.warnings == []
     assert result.code is not None
     loc = {}
     exec(result.code, {}, loc)