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new 87135b28d69 I am so very sorry about that :(
87135b28d69 is described below
commit 87135b28d69d718fa9a1b9f7f80dddfbb66acac7
Author: Dewey Dunnington <[email protected]>
AuthorDate: Mon Jan 29 12:42:54 2024 -0400
I am so very sorry about that :(
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----
-layout: post
-title: "Apache Arrow nanoarrow 0.4.0 Release"
-date: "2023-01-29 00:00:00"
-author: pmc
-categories: [release]
----
-<!--
-{% comment %}
-Licensed to the Apache Software Foundation (ASF) under one or more
-contributor license agreements. See the NOTICE file distributed with
-this work for additional information regarding copyright ownership.
-The ASF licenses this file to you under the Apache License, Version 2.0
-(the "License"); you may not use this file except in compliance with
-the License. You may obtain a copy of the License at
-
-http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-{% endcomment %}
--->
-
-The Apache Arrow team is pleased to announce the 0.4.0 release of
-Apache Arrow nanoarrow. This release covers 46 resolved issues from
-5 contributors.
-
-## Release Highlights
-
-The primary focus of the nanoarrow 0.4.0 release was testing, stability, and
code
-quality. Notably, an implementation of the
-[C data interface integration
test](https://arrow.apache.org/docs/format/Integration.html#example-c-data-interface)
-protocol was added to ensure data produced or consumed by nanoarrow can be
-consumed or produced by other Arrow implementations.
-
-See the
-[Changelog](https://github.com/apache/arrow-nanoarrow/blob/apache-arrow-nanoarrow-0.4.0/CHANGELOG.md)
-for a detailed list of contributions to this release.
-
-## Breaking Changes
-
-Changes included in the nanoarrow 0.4.0 release will not break most downstream
-code; however, several changes in the C library may result in additional
compiler
-warnings that could cause downstream build failures for projects with strict
-compiler warning policies.
-
-First, in debug mode (i.e., when `NANOARROW_DEBUG` is defined), an ignored
return
-value for functions that return `ArrowErrorCode` now issues a compiler warning
-for compilers that support an "unused result" attribute. Ignoring the return
value
-of these functions is a common error and return values that are not
-equal to `NANOARROW_OK` should be propagated as soon as possible. The C library
-provides tools to check return values in a readable way. Notably:
-
-- `NANOARROW_RETURN_NOT_OK()` can be used in a wrapper function that also
returns
- `ArrowErrorCode`.
-- `NANOARROW_THROW_NOT_OK()` can be used from C++ code that inclues
`nanoarrow.hpp`
- and is prepared to handle exceptions.
-- `NANOARROW_ASSERT_OK()` can be used to to check for `NANOARROW_OK` only in
- debug mode (i.e., silently ignore errors in release mode).
-
-Of these, the first or second is preferred. The
-[Getting Started with nanoarrow in C/C++
tutorial](https://arrow.apache.org/nanoarrow/main/getting-started/cpp.html#arrow-c-data-nanoarrow-interface-basics)
-includes examples and advice for handling errors eminating from the nanoarrow C
-library.
-
-Second, in debug mode (i.e., when `NANOARROW_DEBUG` is defined), the
appropriate
-attribute was added to check the format string passed to `ArrowErrorSet()`
-against the provided arguments. Correct code will be unaffected by this change;
-however, actual arguments that do not match the format string (e.g., an
`int64_t`
-that is passed to `ArrowErrorSet()` with a format string of `"%d"`) should be
-cast to the appropriate C type (e.g., `int`) or the format string should be
fixed
-to support the type of the actual argument (e.g., using `"%" PRId64`).
-
-Third, functions in the C library that do not take ownersip of or modify input
-are now properly marked as `const`. For example, `ArrowArrayViewGetIntUnsafe()`
-previously accepted a `struct ArrowArrayView*` and now accepts a
-`const struct ArrowArrayView*`. This change makes it more difficult to
-accidentally modify input intended to be read-only and improves usability
-from C++. Downstream projects that get a new warning about discarding a `const`
-qualifier may need to adjust variable declarations or formal parameter types;
-however, most projects should be unaffected by this change.
-
-### C/C++
-
-The nanoarrow 0.4.0 release includes a number of bugfixes and improvements
-to the core C library and C++ helpers.
-
-- An implementation of the
- [C data interface integration
test](https://arrow.apache.org/docs/format/Integration.html#example-c-data-interface)
- was added, including a reader/writer for the Arrow integration testing JSON
- format. This was used to improve test coverage of the IPC reader and to
- add nanoarrow as a participating member of integration testing in the CI
- job that runs in the main Arrow repository.
-- The C library now supports a wider range of extended compiler warnings to
- make it easier to vendor in projects with strict compiler warning policies.
-- C++ helpers were improved to support const-correctness. As a result,
- the `UniqueSchema`, `UniqueArray`, `UniqueArrayView`, and `UniqueBuffer` now
- work with a wider variety of C++ wrappers (e.g., `std::unordered_map`).
-
-### R bindings
-
-The nanoarrow R bindings are distributed as the `nanoarrow` package on
-[CRAN](https://cran.r-project.org/). The 0.4.0 release of the R bindings
includes
-improvements in type support and stability. Notably:
-
-- Documentation was improved for low-level users of nanoarrow that are
producing or
- consuming `ArrowArray`, `ArrowSchema`, and/or `ArrowArrayStream` structures
- from C or C++ code in other R packages.
-- Improved conversion of `list()`s to support more types when the **arrow** R
- package is not available.
-- Added more implmentations of `as_nanoarrow_array_stream()` to support more
object
- types from the **arrow** R package.
-- Added conversion from Arrow integer arrays to `character()`.
-
-### Python bindings
-
-TODO!
-
-## Contributors
-
-This release consists of contributions from 4 contributors in addition
-to the invaluable advice and support of the Apache Arrow developer mailing
list.
-
-```console
-$ git shortlog -sn
798a1b8f096c84e2b6f887427649f1cb496412b2..apache-arrow-nanoarrow-0.4.0 | grep
-v "GitHub Actions"
- 35 Dewey Dunnington
- 3 William Ayd
- 2 Dirk Eddelbuettel
- 2 Joris Van den Bossche
- 1 eitsupi
-```
