# News

## SQLObject 3.13.1

Released 2025 Dec 08.

### Bug fixes

- `UuidValidator.from_python()` now accepts strings as a valid input. This fixes #199.

- Fixed #197: a bug in `dbconnection.ConnectionURIOpener.registerConnection` triggered by non-empty instance’s `name`. The bug was inserted in 2004 so it seems nobody ever used named instances. Fixed anyway.

- Fixed #195: Minor `NameError` in `pgconnection.py` when using `psycopg` version 1 with a non-default port.

### Tests

- Tested with Python 3.14.

- Run tests with source-only (non-binary) `psycopg` and `psycopg2`.

## SQLObject 3.13.0

Released 2025 Mar 07.

### Drivers

- Extended default list of MySQL drivers to `mysqldb`, `mysqlclient`, `mysql-connector`, `mysql-connector-python`, `pymysql`.

- Extended default list of PostgreSQL drivers to `psycopg`, `psycopg2`, `pygresql`, `pg8000`.

- Fixed outstanding problems with `psycopg`. It’s now the first class driver.

- Fixed all problems with `pg8000`. It’s now the first class driver.

- Dropped support for `CyMySQL`; its author refused to fix unicode-related problems.

- Dropped support for `py-postgresql`; it’s completely broken with debianized `Postgres` and the authors reject fixes.

### Tests

- Added tests for `mysqldb` (aka `mysql-python`) and `mysqlclient` on w32.

- Improved tests of `mysql-connector` and `mysql-connector-python`.

### CI

- Tests(GHActions): Fixed old bugs in the workflow on w32.

- Run tests with `psycopg[c]`.

## SQLObject 3.12.0.post2

Released 2025 Feb 01.

### Installation/dependencies

- Use `FormEncode` 2.1.1 for Python 3.13.

## SQLObject 3.12.0

Released 2024 Dec 20.

### Drivers

- Add support for CyMySQL; there’re some problems with unicode yet.

- Separate `psycopg` and `psycopg2`; `psycopg` is actually `psycopg3` now; not all tests pass.

- Minor fix in getting error code from PyGreSQL.

- Dropped `oursql`. It wasn’t updated in years.

- Dropped `PySQLite2`. Only builtin `sqlite3` is supported.

### Tests

- Run tests with Python 3.13.

- Run tests with `psycopg-c`; not all tests pass.

- Fix `test_exceptions.py` under MariaDB, PostgreSQL and SQLite.

- `py-postgres`: Set `sslmode` to `allow`; upstream changed default to `prefer`.

### CI

- Run tests with `PyGreSQL` on w32, do not ignore errors.

- Skip tests with `pg8000` on w32.

- GHActions: Switch to `setup-miniconda`.

- GHActions: Python 3.13.

## SQLObject 3.11.0

Released 2023 Nov 11.

### Features

- Continue working on `SQLRelatedJoin` aliasing introduced in 3.10.2. When a table joins with itself calling `relJoinCol.filter(thisClass.q.column)` raises `ValueError` hinting that an alias is required for filtering.

- Test that `idType` is either `int` or `str`.

- Added `sqlmeta.idSize`. This sets the size of integer column `id` for MySQL and PostgreSQL. Allowed values are `'TINY'`, `'SMALL'`, `'MEDIUM'`, `'BIG'`, `None`; default is `None`. For Postgres mapped to `smallserial`/`serial`/`bigserial`. For other backends it’s currently ignored. Feature request by Meet Gujrathi at https://stackoverflow.com/q/77360075/7976758

## SQLObject 3.10.3

Released 2023 Oct 25.

### Bug fixes

- Relaxed aliasing in `SQLRelatedJoin` introduced in 3.10.2 - aliasing is required only when the table joins with itself. When there’re two tables to join aliasing prevents filtering – wrong SQL is generated in `relJoinCol.filter(thisClass.q.column)`.

### Drivers

- Fix(SQLiteConnection): Release connections from threads that are no longer active. This fixes memory leak in multithreaded programs in Windows.

  `SQLite` requires different connections per thread so `SQLiteConnection` creates and stores a connection per thread. When a thread finishes its connections should be closed. But if a program doesn’t cooperate and doesn’t close connections at the end of a thread SQLObject leaks memory as connection objects are stuck in `SQLiteConnection`. On Linux the leak is negligible as Linux reuses thread IDs so new connections replace old ones and old connections are garbage collected. But Windows doesn’t reuse thread IDs so old connections pile and never released. To fix the problem `SQLiteConnection` now enumerates threads and releases connections from non-existing threads.

- Dropped `supersqlite`. It seems abandoned. The last version 0.0.78 was released in 2018.

### Tests

- Run tests with Python 3.12.

### CI

- GHActions: Ensure `pip` only if needed

  This is to work around a problem in conda with Python 3.7 - it brings in wrong version of `setuptools` incompatible with Python 3.7.

## SQLObject 3.10.2

Released 2023 Aug 09.

### Minor features

- Class `Alias` grows a method `.select()` to match `SQLObject.select()`.

### Bug fixes

- Fixed a bug in `SQLRelatedJoin` in the case where the table joins with itself; in the resulting SQL two instances of the table must use different aliases.

### CI

- Install all Python and PyPy versions from `conda-forge`.

## SQLObject 3.10.1

Released 2022 Dec 22.

### Minor features

- Use `module_loader.exec_module(module_loader.create_module())` instead of `module_loader.load_module()` when available.

### Drivers

- Added `mysql-connector-python`.

### Tests

- Run tests with Python 3.11.

### CI

- Ubuntu >= 22 and `setup-python` dropped Pythons < 3.7. Use `conda` via `s-weigand/setup-conda` instead of `setup-python` to install older Pythons on Linux.

## SQLObject 3.10.0

Released 2022 Sep 20.

### Features

- Allow connections in `ConnectionHub` to be strings. This allows to open a new connection in every thread.

- Add compatibility with `Pendulum`.

### Tests

- Run tests with Python 3.10.

### CI

- GitHub Actions.

- Stop testing at Travis CI.

- Stop testing at AppVeyor.

### Documentation

- DevGuide: source code must be pure ASCII.

- DevGuide: `reStructuredText` format for docstrings is recommended.

- DevGuide: de-facto good commit message format is required: subject/body/trailers.

- DevGuide: `conventional commit` format for commit message subject lines is recommended.

- DevGuide: `Markdown` format for commit message bodies is recommended.

- DevGuide: commit messages must be pure ASCII.

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