v25.9.0

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Highlights

• Remove support for pre-python 3.7 await/async as soft keywords/variable names
  (#​4676)

Stable style

• Fix crash while formatting a long del statement containing tuples (#​4628)
• Fix crash while formatting expressions using the walrus operator in complex with
  statements (#​4630)
• Handle # fmt: skip followed by a comment at the end of file (#​4635)
• Fix crash when a tuple appears in the as clause of a with statement (#​4634)
• Fix crash when tuple is used as a context manager inside a with statement (#​4646)
• Fix crash when formatting a \ followed by a \r followed by a comment (#​4663)
• Fix crash on a \\r\n (#​4673)
• Fix crash on await ... (where ... is a literal Ellipsis) (#​4676)
• Fix crash on parenthesized expression inside a type parameter bound (#​4684)
• Fix crash when using line ranges excluding indented single line decorated items
  (#​4670)

Preview style

• Fix a bug where one-liner functions/conditionals marked with # fmt: skip would still
  be formatted (#​4552)
• Improve multiline_string_handling with ternaries and dictionaries (#​4657)
• Fix a bug where string_processing would not split f-strings directly after
  expressions (#​4680)
• Wrap the in clause of comprehensions across lines if necessary (#​4699)
• Remove parentheses around multiple exception types in except and except* without
  as. (#​4720)
• Add \r style newlines to the potential newlines to normalize file newlines both from
  and to (#​4710)

Parser

• Rewrite tokenizer to improve performance and compliance (#​4536)
• Fix bug where certain unusual expressions (e.g., lambdas) were not accepted in type
  parameter bounds and defaults. (#​4602)

Performance

• Avoid using an extra process when running with only one worker (#​4734)

Integrations

• Fix the version check in the vim file to reject Python 3.8 (#​4567)
• Enhance GitHub Action psf/black to read Black version from an additional section in
  pyproject.toml: [project.dependency-groups] (#​4606)
• Build gallery docker image with python3-slim and reduce image size (#​4686)

Documentation

• Add FAQ entry for windows emoji not displaying (#​4714)

v0.14.3

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llama-index-core [0.14.3]

• Fix Gemini thought signature serialization (#​19891)
• Adding a ThinkingBlock among content blocks (#​19919)

llama-index-llms-anthropic [0.9.0]

• Adding a ThinkingBlock among content blocks (#​19919)

llama-index-llms-baseten [0.1.4]

• added kimik2 0905 and reordered list for validation (#​19892)
• Baseten Dynamic Model APIs Validation (#​19893)

llama-index-llms-google-genai [0.6.0]

• Add missing FileAPI support for documents (#​19897)
• Adding a ThinkingBlock among content blocks (#​19919)

llama-index-llms-mistralai [0.8.0]

• Adding a ThinkingBlock among content blocks (#​19919)

llama-index-llms-openai [0.6.0]

• Adding a ThinkingBlock among content blocks (#​19919)

llama-index-protocols-ag-ui [0.2.2]

• improve how state snapshotting works in AG-UI (#​19934)

llama-index-readers-mongodb [0.5.0]

• Use PyMongo Asynchronous API instead of Motor (#​19875)

llama-index-readers-paddle-ocr [0.1.0]

• [New Package] Add PaddleOCR Reader for extracting text from images in PDFs (#​19827)

llama-index-readers-web [0.5.4]

• feat(readers/web-firecrawl): migrate to Firecrawl v2 SDK (#​19773)

llama-index-storage-chat-store-mongo [0.3.0]

• Use PyMongo Asynchronous API instead of Motor (#​19875)

llama-index-storage-kvstore-mongodb [0.5.0]

• Use PyMongo Asynchronous API instead of Motor (#​19875)

llama-index-tools-valyu [0.5.0]

• Add Valyu Extractor and Fast mode (#​19915)

llama-index-vector-stores-azureaisearch [0.4.2]

• Fix/llama index vector stores azureaisearch fix (#​19800)

llama-index-vector-stores-azurepostgresql [0.1.0]

• Add support for Azure PostgreSQL (#​19709)

llama-index-vector-stores-qdrant [0.8.5]

• Add proper compat for old sparse vectors (#​19882)

llama-index-vector-stores-singlestoredb [0.4.2]

• Fix SQLi Vulnerability in SingleStore Db (#​19914)

v0.14.2

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llama-index-core [0.14.2]

• fix: handle data urls in ImageBlock (#​19856)
• fix: Move IngestionPipeline docstore document insertion after transformations (#​19849)
• fix: Update IngestionPipeline async document store insertion (#​19868)
• chore: remove stepwise usage of workflows from code (#​19877)

llama-index-embeddings-fastembed [0.5.0]

• feat: make fastembed cpu or gpu optional (#​19878)

llama-index-llms-deepseek [0.2.2]

• feat: pass context_window to super in deepseek llm (#​19876)

llama-index-llms-google-genai [0.5.0]

• feat: Add GoogleGenAI FileAPI support for large files (#​19853)

llama-index-readers-solr [0.1.0]

• feat: Add Solr reader integration (#​19843)

llama-index-retrievers-alletra-x10000-retriever [0.1.0]

• feat: add AlletraX10000Retriever integration (#​19798)

llama-index-vector-stores-oracledb [0.3.2]

• feat: OraLlamaVS Connection Pool Support + Filtering (#​19412)

llama-index-vector-stores-postgres [0.6.8]

• feat: Add customize_query_fn to PGVectorStore (#​19847)

v0.14.1

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llama-index-core [0.14.1]

• feat: add verbose option to RetrieverQueryEngine for detailed output (#​19807)
• feat: feat: add support for additional kwargs in aget_text_embedding_batch method (#​19808)
• feat: add thinking_delta field to AgentStream events to expose llm reasoning (#​19785)
• fix: Bug fix agent streaming thinking delta pydantic validation (#​19828)
• fix: handle positional args and kwargs both in tool calling (#​19822)

llama-index-instrumentation [0.4.1]

• feat: add sync event/handler support (#​19825)

llama-index-llms-google-genai [0.4.0]

• feat: Add VideoBlock and GoogleGenAI video input support (#​19823)

llama-index-llms-ollama [0.7.3]

• fix: Fix bug using Ollama with Agents and None tool_calls in final message (#​19844)

llama-index-llms-vertex [0.6.1]

• fix: align complete/acomplete responses (#​19806)

llama-index-readers-confluence [0.4.3]

• chore: Bump version constraint for atlassian-python-api to include 4.x (#​19824)

llama-index-readers-github [0.6.2]

• fix: Make url optional (#​19851)

llama-index-readers-web [0.5.3]

• feat: Add OlostepWebReader Integration (#​19821)

llama-index-tools-google [0.6.2]

• feat: Add optional creds argument to GoogleCalendarToolSpec (#​19826)

llama-index-vector-stores-vectorx [0.1.0]

• feat: Add vectorx vectorstore (#​19758)

v1.18.2

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• Fix crash on recursive alias (Ivan Levkivskyi, PR 19845)
• Add additional guidance for stubtest errors when runtime is object.__init__ (Stephen Morton, PR 19733)
• Fix handling of None values in f-string expressions in mypyc (BobTheBuidler, PR 19846)

v1.18.1

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We’ve just uploaded mypy 1.18.1 to the Python Package Index (PyPI).
Mypy is a static type checker for Python. This release includes new features, performance
improvements and bug fixes. You can install it as follows:

python3 -m pip install -U mypy

You can read the full documentation for this release on Read the Docs.

Mypy Performance Improvements

Mypy 1.18.1 includes numerous performance improvements, resulting in about 40% speedup
compared to 1.17 when type checking mypy itself. In extreme cases, the improvement
can be 10x or higher. The list below is an overview of the various mypy optimizations.
Many mypyc improvements (discussed in a separate section below) also improve performance.

Type caching optimizations have a small risk of causing regressions. When
reporting issues with unexpected inferred types, please also check if
--disable-expression-cache will work around the issue, as it turns off some of
these optimizations.

• Improve self check performance by 1.8% (Jukka Lehtosalo, PR 19768, 19769, 19770)
• Optimize fixed-format deserialization (Ivan Levkivskyi, PR 19765)
• Use macros to optimize fixed-format deserialization (Ivan Levkivskyi, PR 19757)
• Two additional micro‑optimizations (Ivan Levkivskyi, PR 19627)
• Another set of micro‑optimizations (Ivan Levkivskyi, PR 19633)
• Cache common types (Ivan Levkivskyi, PR 19621)
• Skip more method bodies in third‑party libraries for speed (Ivan Levkivskyi, PR 19586)
• Simplify the representation of callable types (Ivan Levkivskyi, PR 19580)
• Add cache for types of some expressions (Ivan Levkivskyi, PR 19505)
• Use cache for dictionary expressions (Ivan Levkivskyi, PR 19536)
• Use cache for binary operations (Ivan Levkivskyi, PR 19523)
• Cache types of type objects (Ivan Levkivskyi, PR 19514)
• Avoid duplicate work when checking boolean operations (Ivan Levkivskyi, PR 19515)
• Optimize generic inference passes (Ivan Levkivskyi, PR 19501)
• Speed up the default plugin (Jukka Lehtosalo, PRs 19385 and 19462)
• Remove nested imports from the default plugin (Ivan Levkivskyi, PR 19388)
• Micro‑optimize type expansion (Jukka Lehtosalo, PR 19461)
• Micro‑optimize type indirection (Jukka Lehtosalo, PR 19460)
• Micro‑optimize the plugin framework (Jukka Lehtosalo, PR 19464)
• Avoid temporary set creation in subtype checking (Jukka Lehtosalo, PR 19463)
• Subtype checking micro‑optimization (Jukka Lehtosalo, PR 19384)
• Return early where possible in subtype check (Stanislav Terliakov, PR 19400)
• Deduplicate some types before joining (Stanislav Terliakov, PR 19409)
• Speed up type checking by caching argument inference context (Jukka Lehtosalo, PR 19323)
• Optimize binding method self argument type and deprecation checks (Ivan Levkivskyi, PR 19556)
• Keep trivial instance types/aliases during expansion (Ivan Levkivskyi, PR 19543)

Fixed‑Format Cache (Experimental)

Mypy now supports a new cache format used for faster incremental builds. It makes
incremental builds up to twice as fast. The feature is experimental and
currently only supported when using a compiled version of mypy. Use --fixed-format-cache
to enable the new format, or fixed_format_cache = True in a configuration file.

We plan to enable this by default in a future mypy release, and we'll eventually
deprecate and remove support for the original JSON-based format.

Unlike the JSON-based cache format, the new binary format is currently
not easy to parse and inspect by mypy users. We are planning to provide a tool to
convert fixed-format cache files to JSON, but details of the output JSON may be
different from the current JSON format. If you rely on being able to inspect
mypy cache files, we recommend creating a GitHub issue and explaining your use
case, so that we can more likely provide support for it. (Using
MypyFile.read(binary_data) to inspect cache data may be sufficient to support
some use cases.)

This feature was contributed by Ivan Levkivskyi (PR 19668, 19735, 19750, 19681, 19752, 19815).

Flexible Variable Definitions: Update

Mypy 1.16.0 introduced --allow-redefinition-new, which allows redefining variables
with different types, and inferring union types for variables from multiple assignments.
The feature is now documented in the --help output, but the feature is still experimental.

We are planning to enable this by default in mypy 2.0, and we will also deprecate the
older --allow-redefinition flag. Since the new behavior differs significantly from
the older flag, we encourage users of --allow-redefinition to experiment with
--allow-redefinition-new and create a GitHub issue if the new functionality doesn't
support some important use cases.

This feature was contributed by Jukka Lehtosalo.

Inferred Type for Bare ClassVar

A ClassVar without an explicit type annotation now causes the type of the variable
to be inferred from the initializer:

from typing import ClassVar

class Item:

### Type of 'next_id' is now 'int' (it was 'Any')
    next_id: ClassVar = 1

    ...

This feature was contributed by Ivan Levkivskyi (PR 19573).

Disjoint Base Classes (@​disjoint_base, PEP 800)

Mypy now understands disjoint bases (PEP 800): it recognizes the @disjoint_base
decorator, and rejects class definitions that combine mutually incompatible base classes,
and takes advantage of the fact that such classes cannot exist in reachability and
narrowing logic.

This class definition will now generate an error:

v1.2.0: pytest-asyncio 1.2.0

Compare Source

1.2.0 - 2025-09-12

Added

• --asyncio-debug CLI option and asyncio_debug configuration option to enable asyncio debug mode for the default event loop. (#​980)
• A pytest.UsageError for invalid configuration values of asyncio_default_fixture_loop_scope and asyncio_default_test_loop_scope. (#​1189)
• Compatibility with the Pyright type checker (#​731)

Fixed

• RuntimeError: There is no current event loop in thread 'MainThread' when any test unsets the event loop (such as when using asyncio.run and asyncio.Runner). (#​1177)
• Deprecation warning when decorating an asynchronous fixture with @pytest.fixture in [strict]{.title-ref} mode. The warning message now refers to the correct package. (#​1198)

Notes for Downstream Packagers

• Bump the minimum required version of tox to v4.28. This change is only relevant if you use the tox.ini file provided by pytest-asyncio to run tests.
• Extend dependency on typing-extensions>=4.12 from Python<3.10 to Python<3.13.

v1.1.1: pytest-asyncio 1.1.1

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v1.1.1 - 2025-09-12

Notes for Downstream Packagers

- Addresses a build problem with setuptoos-scm >= 9 caused by invalid setuptools-scm configuration in pytest-asyncio. (#​1192)