Pypdf

Bug Fixes (BUG)
- Switch from trimbox to cropbox when merging pages (1622)
- Text extraction not working with one glyph to char sequence (1620)

Robustness (ROB)
- Fix 2 cases of "object has no attribute \'indirect_reference\'" (1616)

Testing (TST)
- Add multiple retry on get_url for external PDF downloads (1626)

[Full Changelog](https://github.com/py-pdf/pypdf/compare/3.4.0...3.4.1)

NOTICE: pypdf changed the way it represents numbers parsed from PDF files.
pypdf<3.4.0 represented numbers as Decimal, pypdf>=3.4.0 represents them as
floats. Several other PDF libraries to this, as well as many PDF viewers.
We hope to fix issues with too high precision like this and get a speed boost.
In case your PDF documents rely on more than 18 decimals of precision you
should check if it still works as expected.
To clarify: This does not affect the text shown in PDF documents. It affects
numbers, e.g. when graphics are drawn on the PDF or very exact positions are
used. Typically, 5 decimals should be enough.

New Features (ENH)
- Enable merging forms with overlapping names (1553)
- Add 'over' parameter to merge_transformend_page & co (1567)

Bug Fixes (BUG)
- Fix getter of the PageObject.rotation property with an indirect object (1602)
- Restore merge_transformed_page & co (1567)
- Replace decimal by float (1563)

Robustness (ROB)
- PdfWriter.remove_images: /Contents might not be in page_ref (1598)

Developer Experience (DEV)
- Introduce ruff (1586, 1609)

Maintenance (MAINT)
- Remove decimal (1608)

[Full Changelog](https://github.com/py-pdf/pypdf/compare/3.3.0...3.4.0)

New Features (ENH)
- Add page label support to PdfWriter (1558)
- Accept inline images with space before EI (1552)
- Add circle annotation support (1556)
- Add polygon annotation support (1557)
- Make merging pages produce a deterministic PDF (1542, 1543)

Bug Fixes (BUG)
- Fix error in cmap extraction (1544)
- Remove erroneous assertion check (1564)
- Fix dictionary access of optional page label keys (1562)

Robustness (ROB)
- Set ignore_eof=True for read_until_regex (1521)

Documentation (DOC)
- Paper size (1550)

Developer Experience (DEV)
- Fix broken combination of dependencies of docs.txt
- Annotate tests appropriately (1551)

[Full Changelog](https://github.com/py-pdf/pypdf/compare/3.2.1...3.3.0)

Bug Fixes (BUG)
- Accept hierarchical fields (1529)

Documentation (DOC)
- Use google style docstrings (1534)
- Fix linked markdown documents (1537)

Developer Experience (DEV)
- Update docs config (1535)

Performance Improvement (PI)
- Help the specializing adaptive interpreter (1522)

New Features (ENH)
- Add support for page labels (1519)

Bug Fixes (BUG)
- upgrade clone_document_root (1520)


[Full Changelog](https://github.com/py-pdf/pypdf/compare/3.1.0...3.1.1)

Move PyPDF2 to pypdf (1513). This now it's all lowercase, no number in the
name. For installation and for import. PyPDF2 will no longer receive updates.
The community should move back to its roots.

If you were still using pyPdf or PyPDF2 < 2.0.0, I recommend reading the
migration guide: https://pypdf.readthedocs.io/en/latest/user/migration-1-to-2.html

pypdf==3.1.0 is only different from PyPDF2==3.0.0 in the package name.
Replacing "PyPDF2" by "pypdf" should be enough if you migrate from
`PyPDF2==3.0.0` to `pypdf==3.1.0`.

[Full Changelog](https://github.com/py-pdf/pypdf/compare/3.0.0...3.1.0)