Bump maxminddb from 2.8.2 to 3.0.0

[dependabot]

Bumps maxminddb from 2.8.2 to 3.0.0.

Release notes

Sourced from maxminddb's releases.

3.0.0

• IMPORTANT: Python 3.10 or greater is required. If you are using an older version, please use an earlier release.
• Databases can now be loaded from buffers. This can be done by passing in a buffer as the database and using mode MODE_FD. Pull request by Emanuel Seemann. GitHub #234.
• The C extension now supports Python 3.13+ free-threading mode and is thread-safe for concurrent reads on platforms with pthread support (such as Linux and macOS) and Windows. On other platforms, the extension will use GIL-based protection.
• The C extension now uses PEP 489 multi-phase initialization, enabling proper subinterpreter support and module isolation for Python 3.12+. This modernizes the extension to use heap types instead of static types and implements per-module state management. Key benefits include support for Python 3.12+ isolated subinterpreters, multiple independent module instances, and future-proofing for Python 3.14's InterpreterPoolExecutor. Requested by R. Christian McDonald in GitHub #105.
• BREAKING: The pure Python maxminddb.reader.Metadata class has been converted to a frozen dataclass. The __repr__ format has changed from maxminddb.reader.Metadata(...) to Metadata(...). More importantly, all Metadata attributes are now readonly and cannot be modified after creation. If you were modifying metadata attributes after object creation, you will need to update your code. All functionality remains the same, including the node_byte_size and search_tree_size properties. Note: The C extension's Metadata class has always been readonly, so this change brings the pure Python implementation into consistency with the C extension.
• MODE constants have been converted to an IntEnum (maxminddb.const.Mode). The old constants (MODE_AUTO, MODE_FILE, etc.) remain available for backward compatibility and are now aliases to the enum members. This provides better IDE support and type safety while maintaining full backward compatibility. You can now use either Mode.FILE or MODE_FILE - both work identically. Since IntEnum is int-compatible, existing code using the constants will continue to work without modification.

Changelog

Sourced from maxminddb's changelog.

3.0.0 (2025-10-15) ++++++++++++++++++

• IMPORTANT: Python 3.10 or greater is required. If you are using an older version, please use an earlier release.
• Databases can now be loaded from buffers. This can be done by passing in a buffer as the database and using mode MODE_FD. Pull request by Emanuel Seemann. GitHub #234.
• The C extension now supports Python 3.13+ free-threading mode and is thread-safe for concurrent reads on platforms with pthread support (such as Linux and macOS) and Windows. On other platforms, the extension will use GIL-based protection.
• The C extension now uses PEP 489 multi-phase initialization, enabling proper subinterpreter support and module isolation for Python 3.12+. This modernizes the extension to use heap types instead of static types and implements per-module state management. Key benefits include support for Python 3.12+ isolated subinterpreters, multiple independent module instances, and future-proofing for Python 3.14's InterpreterPoolExecutor. Requested by R. Christian McDonald in GitHub #105.
• BREAKING: The pure Python maxminddb.reader.Metadata class has been converted to a frozen dataclass. The __repr__ format has changed from maxminddb.reader.Metadata(...) to Metadata(...). More importantly, all Metadata attributes are now readonly and cannot be modified after creation. If you were modifying metadata attributes after object creation, you will need to update your code. All functionality remains the same, including the node_byte_size and search_tree_size properties. Note: The C extension's Metadata class has always been readonly, so this change brings the pure Python implementation into consistency with the C extension.
• MODE constants have been converted to an IntEnum (maxminddb.const.Mode). The old constants (MODE_AUTO, MODE_FILE, etc.) remain available for backward compatibility and are now aliases to the enum members. This provides better IDE support and type safety while maintaining full backward compatibility. You can now use either Mode.FILE or MODE_FILE - both work identically. Since IntEnum is int-compatible, existing code using the constants will continue to work without modification.

Commits

• 00dda80 Update for v3.0.0
• 30a1061 Set release date
• 7120b7b Merge pull request #268 from maxmind/greg/fix-readthedocs
• fd73e1d Fix readthedocs builds
• f0edc90 Merge pull request #267 from maxmind/greg/eng-3216-pep489
• a4db64a Update README to recommend Mode enum over MODE constants
• 5648f66 Use single source of truth for version from pyproject.toml
• f8fbd34 Remove Jython support
• 9f87518 Improve type annotations for Record types and Decoder
• 53101d0 Convert MODE constants to IntEnum
• Additional commits viewable in compare view

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