Pypdf

New Features (ENH)
- Add support for `IndirectObject.__contains__` (3155)

Bug Fixes (BUG)
- Fix detection of inline images followed by names or numbers (3173)

Robustness (ROB)
- Consider root objects without catalog type as fallback (3175)
- Raise proper error on infinite loop when reading objects (3169)

Documentation (DOC)
- Mention memory consumption of text extraction (3168)

Developer Experience (DEV)
- Upgrade to ruff 0.10.0 (3191)

[Full Changelog](https://github.com/py-pdf/pypdf/compare/5.3.1...5.4.0)

Bug Fixes (BUG)
- Use the correct name StandardEncoding for the predefined cmap (3156)
- Handle inline images containing `EI ` sequences (3152)
- Fix check box value which should be name object (3124)
- Fix stream position on inline image fallback extraction (3120)
- Fix object count for incremental writer (3117)

Robustness (ROB)
- Avoid index errors on empty lines in xref table (3162)
- Improve handling of LZW decoder table overflow (3159)
- Ignore non-numbers for width when building font width map (3158)
- Avoid negative seek values when reading partially broken files (3157)

Documentation (DOC)
- Fixed PageObject.images example usage for replacing image (3149)

[Full Changelog](https://github.com/py-pdf/pypdf/compare/5.3.0...5.3.1)

New Features (ENH)
- Handle attachments in /Kids and provide object-oriented API (3108)

Bug Fixes (BUG)
- Handle annotations being None on merging (3111)

Robustness (ROB)
- Prevent excessive layout mode text output from Type3 fonts (3082)

Documentation (DOC)
- stefan6419846 becomes BDFL of pypdf (3078)
- Tidy the visitor function description (3086)

Developer Experience (DEV)
- Remove ignoring multiple Ruff rules
- Remove unused mutmut configuration (3092)

Testing (TST)
- Fix warning assertions to use `pytest.warns()` (3083)

[Full Changelog](https://github.com/py-pdf/pypdf/compare/5.2.0...5.3.0)

Deprecations (DEP)
- Deprecate with replacement CCITParameters (3019)
- Correct deprecation of interiour_color (2947)

New Features (ENH)
- Support alternative (U)F names for embedded file retrieval (3072)
- Adding support for reading .metadata.keywords (2939)

Bug Fixes (BUG)
- Handle further Tf operators in text extraction layout mode (3073)
- Ensure `add_metadata` can deal with `_info = None` (3040)
- Handle IndirectObject in CCITTFaxDecode filter (2965)
- Handle chained colorspace for inline images when no filter is set (3008)
- Avoid extracting inline images twice and dropping other operators (3002)
- Fixed reference of value with `str.__new__` in TextStringObject (2952)
- Handle indirect objects in font width calculations (2967)
- Title sometimes is bytes and not str (2930)
- Fix undefined variable for text extraction (regression) (2934)
- Don't close stream passed to PdfWriter.write() (2909)

Robustness (ROB)
- Handle zero height fonts when extracting text (3075)
- Deal with content streams not containing streams (3005)
- Gracefully handle some text operators when the operands are missing (3006)
- Fall back to non-Adobe Ascii85 format for missing end markers (3007)
- Ignore odd-length strings when processing cmap lines (3009)
- Skip annotation destination being NullObject in PdfWriter (2964)
- Skip destination page being None in PdfWriter (2963)
- Fix infinite loop case when reading null objects within an Array
- Fixing infinite loop in ArrayObject read_from_stream (2928)

Documentation (DOC)
- Add note about default line colors (3014)

Developer Experience (DEV)
- Remove ignoring Ruff rule PGH004 (3071)
- Tidy ignore array in tool.ruff.lint (3069)
- Move Windows CI to Python 3.13 (3003)
- Move to Ubuntu 22.04 (3004)

Maintenance (MAINT)
- Fix formatting of warning message and include exception message (3076)
- Narrow return type for `ContentStream.operations` (2941)

Testing (TST)
- Fix image similarity for upcoming Ubuntu 24.04 (3039)
- Replace broken Apache Tika Corpora urls (3041)

Code Style (STY)
- Add form feed to WHITESPACES (3054)
- Lots of small internal changes

[Full Changelog](https://github.com/py-pdf/pypdf/compare/5.1.0...5.2.0)

New Features (ENH)
- Add `layout_mode_font_height_weight` argument to `PageObject.extract_text()` (2920)

Bug Fixes (BUG)
- Fix font specificier for FreeText annotation (2893)
- Line breaks are not generated due to incorrect calculation of text leading (2890)
- Improve handling of spaces in text extraction (2882)

Robustness (ROB)
- Soft failure for flate encode image mode 1 with wrong LUT size (2900)

Documentation (DOC)
- Use latest package versions (2907)
- Correct example of reading FileAttachment annotation (2906)

Developer Experience (DEV)
- Update pinned requirements (2918)
- Make make_release.py compatible with Windows environment (2894)

Maintenance (MAINT)
- Remove references to outdated Python versions (2919)
- Generalize the method of obtaining space_code (2891)
- Unnecessary character mapping process (2888)
- New LZW decoding implementation (2887)

Testing (TST)
- Add LzwCodec for encoding (2883)

Code Style (STY)
- Capitalize error messages (2903)
- Modify error messages in PdfWriter (2902)

[Full Changelog](https://github.com/py-pdf/pypdf/compare/5.0.1...5.1.0)

New Features (ENH)
- Add `full` parameter to PdfWriter constructor (2865)

Bug Fixes (BUG)
- Update pyproject.toml with minimum Python version of 3.8 (2859)
- Cope with unbalanced delimiters in dictionary object (2878)
- Cope with encoding with too many differences (2873)
- Missing spaces in extract_text() method (1328) (2868)
- Tolerate truncated files and no warning when jumping startxref (2855)

Robustness (ROB)
- Repair PDF with invalid Root object (2880)
- Continue parsing dictionary object when error is detected (2872)
- Merge documents with invalid pages in named destinations (2857)
- Tolerate comments in arrays (2856)

Developer Experience (DEV)
- Use latest Python version for benchmarking (2879)

Maintenance (MAINT)
- Add tests to source distributions (2874)
- Refactor _update_field_annotation (2862)

[Full Changelog](https://github.com/py-pdf/pypdf/compare/5.0.0...5.0.1)