Decide that the next release will increment major version

i. e. API breaking changes on the way

.github/workflows/release.yaml

@@ -5,8 +5,9 @@ name: Autorelease
 on:
   # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#schedule
   # https://github.com/bblanchon/pdfium-binaries/blob/master/.github/workflows/trigger.yml
-  schedule:
-    - cron: '0 10 * * 1'
+  # (Schedule temporarily disabled as the next release will increment major version and may need more time)
+  # schedule:
+  #   - cron: '0 10 * * 1'
   workflow_dispatch:
 
 jobs:

autorelease/update_beta.txt

@@ -0,0 +1 @@
+

autorelease/update_major.txt

@@ -0,0 +1 @@
+

docs/devel/changelog_staging.md

@@ -5,11 +5,11 @@
 
 # Changelog for next release
 
-- pypdfium2 now provides PDFium with an external buffer for rendering. This has numerous advantages, most notably that callers don't need to free resources anymore. The `BitmapDataHolder` class has been removed. *`PdfPage.render_base()` was semi-public, so technically this is an API-breaking change.*
+- pypdfium2 was changed to provide PDFium with an external buffer for rendering. This has numerous advantages, most notably that callers don't need to free resources anymore. `PdfPage.render_base()` now directly returns a ctypes ubyte array; `BitmapDataHolder` has been removed.
+- When doing an automatic release, repository changes are now only pushed after successful wheel building, to avoid leaving the repository in an invalid state in case some earlier step fails.
 - Rewrote the project's `README.md`. Added more support model examples and an extensive guide regarding the raw PDFium/ctypes API.
 - Improved support model code style while writing the raw API guide.
 - Polished `setup.py` code to be much cleaner and easier to understand.
 - Restructured some setup-related sources.
-- When doing an automatic release, repository changes are now only pushed after successful wheel building, to avoid leaving the repository in an invalid state in case some earlier step fails.
-- PDFium's commit log is now shown with GitHub releases.
 - Tweaked dependency pinning.
+- PDFium's commit log is now shown with GitHub releases.